2026 NPPES data Family Medicine Physician NPI 1932276938 MD
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SEAN MCCARTHY, MD

Family Medicine Physician in BALDWIN PARK, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
7K
Medicare Part D claims · 924 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$13.94
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SEAN MCCARTHY, MD filed 6,601 Medicare Part D claims in 2023 as a Family Medicine Physician in BALDWIN PARK, California, prescribing 91% generic.

7K
Part D claims, 2023
91%
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.

SEAN MCCARTHY, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

6,601 Top 4% higher than 96% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

SEAN MCCARTHY, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 SEAN MCCARTHY, MD?

Quality data not reported

NPI registry status

Active

Issued 11/29/2006

NPI 1932276938

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

6,601 93% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in California

How Family Medicine Physician compares to other specialties among California providers

California providers

Family Medicine Physician share within California

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

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).

SEAN MCCARTHY, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1011 BALDWIN PARK BLVD, BALDWIN PARK, CA, 91706, with a listed phone of (626) 851-1011. NPI 1932276938 was issued on 11/29/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCCARTHY 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 6,601 prescription claims written by this provider, covering 924 Medicare beneficiaries and totaling roughly $273K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 4.7%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

1011 BALDWIN PARK BLVD
BALDWIN PARK, CA 91706

Provider Details

NPI 1932276938
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 11/29/2006

Hospital and facility affiliations

Facilities where SEAN MCCARTHY, MD 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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
SAN DIMAS, 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).

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 SEAN MCCARTHY, MD. Source: openpaymentsdata.cms.gov.

Total received

$14

Largest payer

Janssen Biotech, Inc.

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.

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 SEAN MCCARTHY, MD. To verify SEAN MCCARTHY, MD'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 · Generic-heavy

SEAN MCCARTHY, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 6,601 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.

6,601
Total Claims
$273K
Total Drug Cost
924
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
17,728
Total Day Supply
518,833
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$169K
Generic Drug Cost
$101K
Opioid Claims
307 (4.7% rate)
Antibiotic Claims
99

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
1.10
Gender Split
47% female / 53% male
Age Distribution
<65: 32, 65-74: 431, 75-84: 371, 85+: 90

Top Prescribed Drugs (Medicare Part D)

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

What SEAN MCCARTHY, MD 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
Atorvastatin Calcium
662
Lisinopril
354
Metformin Hcl Er
Metformin Hcl
267
Losartan Potassium
249
Levothyroxine Sodium
240
Amlodipine Besylate
228
Simvastatin
212
Rosuvastatin Calcium
167
Lisinopril-Hydrochlorothiazide
Lisinopril/Hydrochlorothiazide
161
Omeprazole
149

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

Family Medicine Physician Overview

How SEAN MCCARTHY, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

SEAN MCCARTHY, MD's 6,601 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in California

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SEAN MCCARTHY, MD's specialty?
SEAN MCCARTHY, MD specializes in Family Medicine Physician and practices in BALDWIN PARK, California. Credentials: MD.
How much does SEAN MCCARTHY, MD prescribe under Medicare Part D?
In 2023, SEAN MCCARTHY, MD wrote 6,601 Medicare Part D claims totaling $273K in drug costs for 924 beneficiaries.
Where is SEAN MCCARTHY, MD located?
SEAN MCCARTHY, MD is located at 1011 BALDWIN PARK BLVD, BALDWIN PARK, CA, 91706. Phone: (626) 851-1011.
What is SEAN MCCARTHY, MD's NPI number?
SEAN MCCARTHY, MD's National Provider Identifier (NPI) is 1932276938, issued on 11/29/2006.
Does SEAN MCCARTHY, MD prescribe more brand-name or generic drugs?
SEAN MCCARTHY, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $169K in brand drug costs.
Does SEAN MCCARTHY, MD prescribe opioids?
Yes, SEAN MCCARTHY, MD had 307 opioid claims in 2023 with an opioid prescribing rate of 4.7%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does SEAN MCCARTHY, MD prescribe most often?
Based on 2023 Medicare Part D data, SEAN MCCARTHY, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Metformin Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SEAN MCCARTHY, MD accept Medicare?
SEAN MCCARTHY, MD appears in CMS Medicare data with 6,601 Part D claims and 924 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SEAN MCCARTHY, MD's credentials?
SEAN MCCARTHY, MD's NPI is 1932276938 with credentials MD. 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.
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