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2026 NPPES data Hematology (Internal Medicine) Physician NPI 1730321662 M.D.
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Tracy Proverbs-Singh, M.D.

Hematology (Internal Medicine) Physician in Hackensack, New Jersey.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,483 in Hematology (Internal Medicine) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
646
Medicare Part D claims · 169 beneficiaries · Hematology (Internal Medicine) Physician avg: 684
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.5/100
▼ 0 pts below national avg 83.5 · Above neutral
Industry payments
$1.0K
52 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Tracy Proverbs-Singh, M.D. reported a CMS MIPS final score of 83.5/100 - below the 83.5 national average - and filed 646 Medicare Part D claims in 2024.

83.5/100
MIPS score · 0 vs avg
646
Part D claims, 2024
85%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Federal trust snapshot

What official records show about Tracy Proverbs-Singh, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1730321662), first enumerated 03/24/2009.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 646 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 83.5/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $1.0K in reported industry payments (52 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1730321662 · Hematology (Internal Medicine) Physician

NPI-10 · ENUM-MID · TAX-NARROW · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1730321662
  • ENUM-MID 2009
  • TAX-NARROW 1,483
  • MIPS-INLINE 83.5/100
  • RX-LIGHT 646
  • BOOK-THIN 48 in New Jersey
  • PHOTO-FINISH Kimberley Doucette,… · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Tracy Proverbs-Singh, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

84 ≥ 39th percentile 39% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Tracy Proverbs-Singh, M.D. sits

This provider among hematology (internal medicine) physician peers

Across the 446 hematology (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Tracy Proverbs-Singh, M.D. writes more Part D claims than 66% of them and scores higher on MIPS quality than 34% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 90Tracy Proverbs-Singh, M.D., Part D claim volume, percentile in specialty: 66 · MIPS quality, percentile: 34
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one hematology (internal medicine) physician peer from a representative sample of 60; the gold marker is Tracy Proverbs-Singh, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Tracy Proverbs-Singh, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Tracy Proverbs-Singh, M.D.?

Near national average

NPI registry status

Active

Issued 03/24/2009

NPI 1730321662

Primary specialty

Hematology (Internal Medicine) Physician

Niche

1,483 US NPIs in this specialty

Medicare Part D claims

646 6% vs specialty avg

2024 prescription claims

Specialty avg: 684

MIPS final score

83.5/100 0 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in New Jersey

How Hematology (Internal Medicine) Physician compares to other specialties among New Jersey providers

New Jersey providers
Mental Health Counselor6.2%Physical Therapist5.8%Student in an Organized Heal…5.6%Clinical Social Worker5.5%Pharmacist5%Internal Medicine Physician3.1%Hematology (Internal Medicin…0%
Largest specialties in New Jersey (% of in-state providers)

Medicare quality performance, MIPS

Tracy Proverbs-Singh, M.D.'s 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average

Near national average
MIPS Final Score
83.5/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%83.5%
MIPS final score (Hematology (Internal Medicine) Physician) - 83.5/100 vs national avg 83.5
How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Practice Address

92 2ND ST
Hackensack, NJ 07601
(551) 996-5863

Provider Details

NPI 1730321662
Specialty Hematology (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 03/24/2009

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

83.4834
Final Score
Measured-score avg: 83.5
77.918
Quality
54.975
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Tracy Proverbs-Singh, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Regional Cancer Care Associates LLC
Hackensack, NJ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Tracy Proverbs-Singh, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.0K

Largest payer

E.R. Squibb & Sons, L.L.C.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

Tracy Proverbs-Singh, M.D. - brand share 15.0%
Hematology (Internal Medicine) Physician average

15% brand-name claims vs 85% generic, on 646 2024 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

646
Total Claims
$888K
Total Drug Cost
169
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
723.8
Total Day Supply
12,933
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$803K
Generic Drug Cost
$85K
Opioid Claims
16 (2.5% rate)
Antibiotic Claims
40

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
2.61
Gender Split
44% female / 56% male
Age Distribution
<65: 12, 65-74: 80, 75-84: 60, 85+: 17

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Tracy Proverbs-Singh, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Ondansetron Hcl
 138
Prochlorperazine Maleate
 98
Dexamethasone
 22
Prednisone
 22
Creon
Lipase/Protease/Amylase
20
Pantoprazole Sodium
 20
Potassium Chloride
 19
Lactulose
 17
Famotidine
 15
Eliquis
Apixaban
14

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Hematology (Internal Medicine) Physician in NJ → All providers in New Jersey → Compare specialties →

Hematology (Internal Medicine) Physician Overview

How Tracy Proverbs-Singh, M.D. fits within the Hematology (Internal Medicine) Physician landscape nationally.

1,483
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
684
Avg Claims per Provider

Tracy Proverbs-Singh, M.D.'s 646 claims are below the specialty average of 684.

Nationwide Hematology (Internal Medicine) Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Proverbs-Singh, both outside New Jersey so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (83.5 here).

Kimberley Doucette 83.5 DC Kieron Dunleavy 83.5 DC Hyung Suh 83.5 FL Sandy Kotiah 83.3 MD

Same NPPES enumeration year (2009)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Swetha Arshanapally Salisbury, NC Pavan Mahendra Ravella Mooresville, NC Nausheen Ahmed Westwood, KS Jessica Liegel Boston, MA

Nearby Hematology (Internal Medicine) Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Proverbs-Singh.

One of 48 Hematology (Internal Medicine) Physician providers enrolled in New Jersey, 5 are shown here.

Dr. Robert Alter
MD
Hackensack, NJ
Dr. Fazal Bari
M.D.
Mountain Lakes, NJ
Dr. Noa Biran
M.D.
Hackensack, NJ
Marcus Carr
North Brunswick, NJ
Dr. Allan Louie Cruz
M.D.
Jersey City, NJ

Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Tracy Proverbs-Singh, M.D.'s specialty? ▼
Tracy Proverbs-Singh, M.D. specializes in Hematology (Internal Medicine) Physician and practices in Hackensack, New Jersey. Credentials: M.D..
How much does Tracy Proverbs-Singh, M.D. prescribe under Medicare Part D? ▼
In 2024, Tracy Proverbs-Singh, M.D. wrote 646 Medicare Part D claims totaling $888K in drug costs for 169 beneficiaries.
What is Tracy Proverbs-Singh, M.D.'s Medicare quality score? ▼
Tracy Proverbs-Singh, M.D. has a CMS MIPS Final Score of 83.5/100 (Quality: 77.9, Cost: 55). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Tracy Proverbs-Singh, M.D. located? ▼
Tracy Proverbs-Singh, M.D. is located at 92 2ND ST, Hackensack, NJ, 07601. Phone: (551) 996-5863.
What is Tracy Proverbs-Singh, M.D.'s NPI number? ▼
Tracy Proverbs-Singh, M.D.'s National Provider Identifier (NPI) is 1730321662, issued on 03/24/2009.
Does Tracy Proverbs-Singh, M.D. prescribe more brand-name or generic drugs? ▼
Tracy Proverbs-Singh, M.D.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $803K in brand drug costs.
Does Tracy Proverbs-Singh, M.D. prescribe opioids? ▼
Yes, Tracy Proverbs-Singh, M.D. had 16 opioid claims in 2024 with an opioid prescribing rate of 2.5%.
How many Hematology (Internal Medicine) Physician providers are there in the US? ▼
There are 1,483 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 684 Medicare Part D claims per year.
What drugs does Tracy Proverbs-Singh, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Tracy Proverbs-Singh, M.D.'s most frequently prescribed drugs include Ondansetron Hcl, Prochlorperazine Maleate, Dexamethasone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tracy Proverbs-Singh, M.D. accept Medicare? ▼
Tracy Proverbs-Singh, M.D. appears in CMS Medicare data with 646 Part D claims and 169 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tracy Proverbs-Singh, M.D.'s credentials? ▼
Tracy Proverbs-Singh, M.D.'s NPI is 1730321662 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.