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2026 NPPES data Hematology (Internal Medicine) Physician NPI 1912165440 M.D
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Niharika Dixit, M.D

Hematology (Internal Medicine) Physician in San Francisco, California.

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
447
Medicare Part D claims · 72 beneficiaries · Hematology (Internal Medicine) Physician avg: 684
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91.9/100
▲ 8 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Niharika Dixit, M.D reported a CMS MIPS final score of 91.9/100 - above the 83.5 national average - and filed 447 Medicare Part D claims in 2024.

91.9/100
MIPS score · +8 vs avg
447
Part D claims, 2024
73%
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 Niharika Dixit, 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 1912165440), first enumerated 05/30/2008.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 447 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 91.9/100 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

  • State context

    State board disciplinary context

    California statewide board action statistics are published annually — these figures describe aggregate state activity, not Niharika Dixit, M.D's individual license status. Verify directly with the state medical board.

    Source: MBC annual report 2023

  • 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 1912165440 · Hematology (Internal Medicine) Physician

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

  • NPI-10 1912165440
  • ENUM-MID 2008
  • TAX-NARROW 1,483
  • MIPS-ABOVE 91.9/100
  • RX-LIGHT 447
  • BOOK-THIN 132 in California
  • PHOTO-FINISH Konstantine Halkidis… · ±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

Niharika Dixit, 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.

92 ≥ 61st percentile 61% 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%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. 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 Niharika Dixit, 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, Niharika Dixit, M.D writes more Part D claims than 54% of them and scores higher on MIPS quality than 58% - placing this provider in the high-volume, high-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: 63 · 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: 57Point, Part D claim volume, percentile in specialty: 67 · 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: 60 · 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: 55Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 48Point, 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: 62 · 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: 47Point, 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: 57 · 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: 43Point, 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: 65 · MIPS quality, percentile: 90Niharika Dixit, M.D, Part D claim volume, percentile in specialty: 54 · MIPS quality, percentile: 58
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 Niharika Dixit, M.D. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Niharika Dixit, 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 Niharika Dixit, M.D?

High performer (top quartile)

NPI registry status

Active

Issued 05/30/2008

NPI 1912165440

Primary specialty

Hematology (Internal Medicine) Physician

Niche

1,483 US NPIs in this specialty

Medicare Part D claims

447 35% vs specialty avg

2024 prescription claims

Specialty avg: 684

MIPS final score

91.9/100 8.4 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in California

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

California providers
Behavior Technician17.9%Marriage & Family Therapist5.4%Student in an Organized Heal…5.1%Mental Health Counselor3.7%Pharmacist3.4%Clinical Social Worker3.1%Hematology (Internal Medicin…0%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Niharika Dixit, M.D's 2023 MIPS final score plotted against the Hematology (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
91.9/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%91.9%
MIPS final score (Hematology (Internal Medicine) Physician) - 91.9/100 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

995 POTRERO AVE
San Francisco, CA 94110
(415) 476-4082

Provider Details

NPI 1912165440
Specialty Hematology (Internal Medicine) Physician
Credentials M.D
Gender Female
NPI Issued 05/30/2008

CMS Quality Score (MIPS)

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

91.8508
Final Score
Measured-score avg: 83.5
83.5371
Quality
68.0152
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Niharika Dixit, 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.

University OF California Sfgh Medical Group
San Francisco, CA

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

License & disciplinary context - California MBC 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Niharika Dixit, M.D. To verify Niharika Dixit, M.D's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

Niharika Dixit, M.D - brand share 27.0%
Hematology (Internal Medicine) Physician average

27% brand-name claims vs 73% generic, on 447 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.

447
Total Claims
$1.5M
Total Drug Cost
72
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
595.7
Total Day Supply
14,439
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$1.4M
Generic Drug Cost
$89K

Patient Demographics

Average Patient Age
68.6 years
Avg HCC Risk Score
1.76
Gender Split
71% female / 29% male
Age Distribution
<65: 14, 65-74: 46, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What Niharika Dixit, 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
Anastrozole
 66
Ondansetron Hcl
 38
Dexamethasone
 35
Olanzapine
 33
Ibrance
Palbociclib
24
Imatinib Mesylate
 15
Prednisone
 15
Abiraterone Acetate
 14
Retevmo
Selpercatinib
13
Nubeqa
Darolutamide
12

* 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 CA → All providers in California → Compare specialties →

Hematology (Internal Medicine) Physician Overview

How Niharika Dixit, 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

Niharika Dixit, M.D's 447 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 Dixit, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (91.9 here).

Konstantine Halkidis 91.9 KS Robert Kribs 91.9 KS Aung Tun 91.9 KS Ivan Aksentijevich 92 VA

Same NPPES enumeration year (2008)

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

Eric Harris Daytona Beach, FL Kathleen Phelan Chicago, IL Ashita Talsania Torrington, CT Virgil Fairbanks Rochester, MN

Nearby Hematology (Internal Medicine) Physician Providers in California

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

One of 132 Hematology (Internal Medicine) Physician providers enrolled in California, 5 are shown here.

Dr. Haifaa Abdulhaq
MD
Fresno, CA
Dr. John Adamson
MD
San Diego, CA
Dr. Julio Alvarenga Thiebaud
M.D.
Irvine, CA
Dr. Idoroenyi Amanam
M.D.
Duarte, CA
Dr. Ian Anderson
M.D.
Santa Rosa, CA

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

Frequently Asked Questions

What is Niharika Dixit, M.D's specialty? ▼
Niharika Dixit, M.D specializes in Hematology (Internal Medicine) Physician and practices in San Francisco, California. Credentials: M.D.
How much does Niharika Dixit, M.D prescribe under Medicare Part D? ▼
In 2024, Niharika Dixit, M.D wrote 447 Medicare Part D claims totaling $1.5M in drug costs for 72 beneficiaries.
What is Niharika Dixit, M.D's Medicare quality score? ▼
Niharika Dixit, M.D has a CMS MIPS Final Score of 91.9/100 (Quality: 83.5, Cost: 68). 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 Niharika Dixit, M.D located? ▼
Niharika Dixit, M.D is located at 995 POTRERO AVE, San Francisco, CA, 94110. Phone: (415) 476-4082.
What is Niharika Dixit, M.D's NPI number? ▼
Niharika Dixit, M.D's National Provider Identifier (NPI) is 1912165440, issued on 05/30/2008.
Does Niharika Dixit, M.D prescribe more brand-name or generic drugs? ▼
Niharika Dixit, M.D's prescribing is 27% brand-name and 73% generic drugs by claim count, with $1.4M in brand drug costs.
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 Niharika Dixit, M.D prescribe most often? ▼
Based on 2024 Medicare Part D data, Niharika Dixit, M.D's most frequently prescribed drugs include Anastrozole, Ondansetron Hcl, Dexamethasone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Niharika Dixit, M.D accept Medicare? ▼
Niharika Dixit, M.D appears in CMS Medicare data with 447 Part D claims and 72 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Niharika Dixit, M.D's credentials? ▼
Niharika Dixit, M.D's NPI is 1912165440 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.