2026 NPPES data Infectious Disease Physician NPI 1215020052 M.D.
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Aparajita Singh, M.D.

Infectious Disease Physician in Mesa, Arizona. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 8,292 in Infectious Disease 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
258
Medicare Part D claims · 59 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Aparajita Singh, M.D. reported a CMS MIPS final score of 75/100 — below the 83.1 national average — and filed 258 Medicare Part D claims in 2023.

75/100
MIPS score · -8 vs avg
258
Part D claims, 2023
93%
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.

Aparajita Singh, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

75 15th percentile higher than 15% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

Where Aparajita Singh, M.D. sits

This provider among infectious disease physician peers

Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Aparajita Singh, M.D. writes more Part D claims than 38% of them and scores higher on MIPS quality than 16% — placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100023.647.370.994.5Part D claim volume — percentile in specialtyMIPS quality — percentilePart D claim volume — percentile in specialty: 85 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 27 · MIPS quality — percentile: 75Part D claim volume — percentile in specialty: 65 · MIPS quality — percentile: 73Part D claim volume — percentile in specialty: 95 · MIPS quality — percentile: 55Part D claim volume — percentile in specialty: 63 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 7 · MIPS quality — percentile: 82Part D claim volume — percentile in specialty: 68 · MIPS quality — percentile: 42Part D claim volume — percentile in specialty: 82 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 47 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 48 · MIPS quality — percentile: 87Part D claim volume — percentile in specialty: 10 · MIPS quality — percentile: 48Part D claim volume — percentile in specialty: 25 · MIPS quality — percentile: 57Part D claim volume — percentile in specialty: 23 · MIPS quality — percentile: 82Part D claim volume — percentile in specialty: 28 · MIPS quality — percentile: 68Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 52 · MIPS quality — percentile: 33Part D claim volume — percentile in specialty: 50 · MIPS quality — percentile: 32Part D claim volume — percentile in specialty: 70 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 30 · MIPS quality — percentile: 12Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 53 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 0 · MIPS quality — percentile: 78Part D claim volume — percentile in specialty: 57 · MIPS quality — percentile: 60Part D claim volume — percentile in specialty: 35 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 15 · MIPS quality — percentile: 2Part D claim volume — percentile in specialty: 72 · MIPS quality — percentile: 10Part D claim volume — percentile in specialty: 90 · MIPS quality — percentile: 28Part D claim volume — percentile in specialty: 18 · MIPS quality — percentile: 82Part D claim volume — percentile in specialty: 20 · MIPS quality — percentile: 37Part D claim volume — percentile in specialty: 38 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 5 · MIPS quality — percentile: 25Part D claim volume — percentile in specialty: 42 · MIPS quality — percentile: 57Part D claim volume — percentile in specialty: 72 · MIPS quality — percentile: 62Part D claim volume — percentile in specialty: 88 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 0 · MIPS quality — percentile: 77Part D claim volume — percentile in specialty: 17 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 3 · MIPS quality — percentile: 30Part D claim volume — percentile in specialty: 22 · MIPS quality — percentile: 38Part D claim volume — percentile in specialty: 37 · MIPS quality — percentile: 50Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 8Part D claim volume — percentile in specialty: 97 · MIPS quality — percentile: 53Part D claim volume — percentile in specialty: 75 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 92 · MIPS quality — percentile: 5Part D claim volume — percentile in specialty: 60 · MIPS quality — percentile: 50Part D claim volume — percentile in specialty: 87 · MIPS quality — percentile: 3Part D claim volume — percentile in specialty: 62 · MIPS quality — percentile: 27Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 35Part D claim volume — percentile in specialty: 83 · MIPS quality — percentile: 7Part D claim volume — percentile in specialty: 98 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 12 · MIPS quality — percentile: 47Part D claim volume — percentile in specialty: 67 · MIPS quality — percentile: 63Part D claim volume — percentile in specialty: 80 · MIPS quality — percentile: 40Part D claim volume — percentile in specialty: 32 · MIPS quality — percentile: 22Part D claim volume — percentile in specialty: 78 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 40 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 8 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 93 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 100 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 77 · MIPS quality — percentile: 13Aparajita Singh, M.D. — Part D claim volume — percentile in specialty: 38 · MIPS quality — percentile: 16
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Aparajita 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)

Aparajita 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 Aparajita Singh, M.D.?

Below national average

NPI registry status

Active

Issued 10/02/2006

NPI 1215020052

Primary specialty

Infectious Disease Physician

Mid-sized

8,292 US NPIs in this specialty

Medicare Part D claims

258 68% vs specialty avg

2023 prescription claims

Specialty avg: 816

MIPS final score

75/100 8.1 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Arizona

How Infectious Disease Physician compares to other specialties among Arizona providers

Arizona providers

Largest specialties in Arizona (% of in-state providers)

Pharmacist — 5.6%Pharmacist5.6%Behavior Technician — 5.6%Behavior Technician5.6%Family Nurse Practitioner — 4.3%Family Nurse Practitioner4.3%Physical Therapist — 4.2%Physical Therapist4.2%Speech-Language Pathologist — 3.5%Speech-Language Pathologist3.5%Student in an Organized Health Care Education/Training Program — 3.5%Student in an Organized Health Care Education/Training Program3.5%Infectious Disease Physician — 0.1%Infectious Disease Physician0.1%
Largest specialties in Arizona (% of in-state providers)

Medicare quality performance — MIPS

Aparajita Singh, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Infectious Disease Physician) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Infectious Disease Physician) — 75/100 vs national avg 83.1

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).

Aparajita Singh, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 6644 E BAYWOOD AVE, Mesa, AZ, 85206, with a listed phone of (480) 384-0585. NPI 1215020052 was issued on 10/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Singh most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 258 prescription claims written by this provider, covering 59 Medicare beneficiaries and totaling roughly $71K in drug spend, split 7% brand-name and 93% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.

Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

6644 E BAYWOOD AVE
Mesa, AZ 85206

Provider Details

NPI 1215020052
Specialty Infectious Disease Physician
Credentials M.D.
Gender Female
NPI Issued 10/02/2006

CMS Quality Score (MIPS)

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

75
Final Score
Avg: 83.1

Reporting: Group practice

Hospital and facility affiliations

Facilities where Aparajita 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.

East Valley Infectious Disease Medicine LLC
Mesa, AZ

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

Brand vs generic prescribing mix · Generic-heavy

Aparajita Singh, M.D. — brand share 7.0%
Infectious Disease Physician average

7% brand-name claims vs 93% generic, on 258 2023 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 2023.

258
Total Claims
$71K
Total Drug Cost
59
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
263
Total Day Supply
2,118
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$28K
Generic Drug Cost
$44K
Antibiotic Claims
250

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
2.82
Gender Split
54% female / 46% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Aparajita Singh, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Vancomycin Hcl
50
Cefazolin Sodium
42
Ceftriaxone
Ceftriaxone Sodium
33
Imipenem-Cilastatin Sodium
Imipenem/Cilastatin Sodium
20
Cefepime Hcl
19
Ertapenem
Ertapenem Sodium
17
Amikacin Sulfate
11

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

Infectious Disease Physician Overview

How Aparajita Singh, M.D. fits within the Infectious Disease Physician landscape nationally.

8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider

Aparajita Singh, M.D.'s 258 claims are below the specialty average of 816.

Nearby Infectious Disease Physician Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Singh.

Compare Infectious Disease Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Arizona medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Infectious Disease Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Aparajita Singh, M.D.'s specialty?
Aparajita Singh, M.D. specializes in Infectious Disease Physician and practices in Mesa, Arizona. Credentials: M.D..
How much does Aparajita Singh, M.D. prescribe under Medicare Part D?
In 2023, Aparajita Singh, M.D. wrote 258 Medicare Part D claims totaling $71K in drug costs for 59 beneficiaries.
What is Aparajita Singh, M.D.'s Medicare quality score?
Aparajita Singh, M.D. has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Aparajita Singh, M.D. located?
Aparajita Singh, M.D. is located at 6644 E BAYWOOD AVE, Mesa, AZ, 85206. Phone: (480) 384-0585.
What is Aparajita Singh, M.D.'s NPI number?
Aparajita Singh, M.D.'s National Provider Identifier (NPI) is 1215020052, issued on 10/02/2006.
Does Aparajita Singh, M.D. prescribe more brand-name or generic drugs?
Aparajita Singh, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $28K in brand drug costs.
How many Infectious Disease Physician providers are there in the US?
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Aparajita Singh, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Aparajita Singh, M.D.'s most frequently prescribed drugs include Vancomycin Hcl, Cefazolin Sodium, Ceftriaxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Aparajita Singh, M.D. accept Medicare?
Aparajita Singh, M.D. appears in CMS Medicare data with 258 Part D claims and 59 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aparajita Singh, M.D.'s credentials?
Aparajita Singh, M.D.'s NPI is 1215020052 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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 PlainDoctor editorial team.