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2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1184650749 M.D.
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Ruchi Mathur, M.D.

Endocrinology, Diabetes & Metabolism Physician in Los Angeles, 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 8,078 in Endocrinology, Diabetes & Metabolism 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
459
Medicare Part D claims · 49 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
41%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
87.7/100
▲ 4 pts above national avg 83.5 · Above neutral
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Ruchi Mathur, M.D. reported a CMS MIPS final score of 87.7/100 - above the 83.5 national average - and filed 459 Medicare Part D claims in 2024.

87.7/100
MIPS score · +4 vs avg
459
Part D claims, 2024
41%
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 Ruchi Mathur, 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 1184650749), first enumerated 06/24/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 459 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 87.7/100 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 Ruchi Mathur, 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 1184650749 · Endocrinology, Diabetes & Metabolism Physician

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

  • NPI-10 1184650749
  • ENUM-LEGACY 2006
  • TAX-MID 8K Endocrinology, Diabetes
  • MIPS-ABOVE 87.7/100
  • RX-LIGHT 459
  • BOOK-LIGHT 890 in California
  • PHOTO-FINISH Anju Verma · ±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

Ruchi Mathur, 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.

88 ≥ 52nd percentile 52% 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 Ruchi Mathur, M.D. sits

This provider among endocrinology, diabetes & metabolism physician peers

Across the 2,341 endocrinology, diabetes & metabolism physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ruchi Mathur, M.D. writes more Part D claims than 16% of them and scores higher on MIPS quality than 57% - placing this provider in the lower-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 quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 98Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 15Ruchi Mathur, M.D., Part D claim volume, percentile in specialty: 16 · MIPS quality, percentile: 57
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one endocrinology, diabetes & metabolism physician peer from a representative sample of 60; the gold marker is Ruchi Mathur, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Ruchi Mathur, 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 Ruchi Mathur, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 06/24/2006

NPI 1184650749

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

8,078 US NPIs in this specialty

Medicare Part D claims

459 83% vs specialty avg

2024 prescription claims

Specialty avg: 2,739

MIPS final score

87.7/100 4.2 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in California

How Endocrinology, Diabetes & Metabolism 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%Endocrinology, Diabetes & Me…0.1%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Ruchi Mathur, M.D.'s 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

High performer (top quartile)
MIPS Final Score
87.7/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%87.7%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) - 87.7/100 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

1520 SAN PABLO ST
Los Angeles, CA 90033
(626) 457-5839

Provider Details

NPI 1184650749
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Female
NPI Issued 06/24/2006

CMS Quality Score (MIPS)

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

87.6775
Final Score
Measured-score avg: 83.5
80.8666
Quality
49.4287
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Ruchi Mathur, 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.

Cedars-Sinai Medical Center
★★★★★ 5/5
West Hollywood, CA
Acute Care Hospitals
CMS CCN: 050625

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 Ruchi Mathur, M.D.. To verify Ruchi Mathur, 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

Ruchi Mathur, M.D. - brand share 45.0%
Endocrinology, Diabetes & Metabolism Physician average

45% brand-name claims vs 41% generic, on 459 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.

459
Total Claims
$147K
Total Drug Cost
49
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
968.133
Total Day Supply
28,707
Brand vs Generic
45% brand / 41% generic
Brand Drug Cost
$132K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.07
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

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

What Ruchi Mathur, 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
Mounjaro
Tirzepatide
51
Metformin Hcl
 32
Jardiance
Empagliflozin
29
Synthroid
Levothyroxine Sodium
26
Levothyroxine Sodium
 24
Alcohol Prep Pads
Alcohol Antiseptic Pads
19
Atorvastatin Calcium
 19
Ozempic
Semaglutide
19
Basaglar Kwikpen U-100
Insulin Glargine,hum.Rec.Anlog
15
Lantus Solostar
Insulin Glargine,hum.Rec.Anlog
15

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

More Endocrinology, Diabetes & Metabolism Physician in CA → All providers in California → Compare specialties →

Endocrinology, Diabetes & Metabolism Physician Overview

How Ruchi Mathur, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

8,078
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,739
Avg Claims per Provider

Ruchi Mathur, M.D.'s 459 claims are below the specialty average of 2,739.

Nationwide Endocrinology, Diabetes & Metabolism Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Mathur, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (87.7 here).

Anju Verma 87.7 MD Kandaswamy Jayaraj 87.6 TX Kathryn Dinh 87.7 TN Matthew Hollie 87.7 TN

Same NPPES enumeration year (2006)

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

Patricia Knutsen Saint Louis, MO Dolly Misra Waldorf, MD Steve Kochu Lexington, KY Edna Scheindling-Tokayer Boca Raton, FL

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in California

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

One of 890 Endocrinology, Diabetes & Metabolism Physician providers enrolled in California, 5 are shown here.

Dr. Anita Abraham
M.D.
Stockton, CA
Dr. Sallie Adams
M.D.
Roseville, CA
Ananta Addala
Palo Alto, CA
Dr. Helen Adelberg
M.D.
Encino, CA
Dr. David Aftergood
MD
Beverly Hills, CA

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Ruchi Mathur, M.D.'s specialty? ▼
Ruchi Mathur, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in Los Angeles, California. Credentials: M.D..
How much does Ruchi Mathur, M.D. prescribe under Medicare Part D? ▼
In 2024, Ruchi Mathur, M.D. wrote 459 Medicare Part D claims totaling $147K in drug costs for 49 beneficiaries.
What is Ruchi Mathur, M.D.'s Medicare quality score? ▼
Ruchi Mathur, M.D. has a CMS MIPS Final Score of 87.7/100 (Quality: 80.9, Cost: 49.4). 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 Ruchi Mathur, M.D. located? ▼
Ruchi Mathur, M.D. is located at 1520 SAN PABLO ST, Los Angeles, CA, 90033. Phone: (626) 457-5839.
What is Ruchi Mathur, M.D.'s NPI number? ▼
Ruchi Mathur, M.D.'s National Provider Identifier (NPI) is 1184650749, issued on 06/24/2006.
Does Ruchi Mathur, M.D. prescribe more brand-name or generic drugs? ▼
Ruchi Mathur, M.D.'s prescribing is 45% brand-name and 41% generic drugs by claim count, with $132K in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US? ▼
There are 8,078 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,739 Medicare Part D claims per year.
What drugs does Ruchi Mathur, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ruchi Mathur, M.D.'s most frequently prescribed drugs include Mounjaro, Metformin Hcl, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ruchi Mathur, M.D. accept Medicare? ▼
Ruchi Mathur, M.D. appears in CMS Medicare data with 459 Part D claims and 49 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ruchi Mathur, M.D.'s credentials? ▼
Ruchi Mathur, M.D.'s NPI is 1184650749 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.