2026 NPPES data General Practice Physician NPI 1831202233 MD
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MARIE DAVID, MD

General Practice Physician in MERCED, 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
1K
Medicare Part D claims · 242 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$219.65
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARIE DAVID, MD is a General Practice Physician ([object Object]) practicing in MERCED, California with a Medicare Part D prescribing footprint of 1K claims across 242 beneficiaries — 10% brand-name prescribing . Industry payments of $219.65 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARIE DAVID, MD filed 1,461 Medicare Part D claims in 2023 across MERCED, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARIE DAVID, 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).

MARIE DAVID, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/17/2006

NPI 1831202233

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

1,461 49% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in California

How General Practice Physician compares to other specialties among California providers

California providers

General Practice Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

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

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice 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).

MARIE DAVID, MD is a General Practice Physician provider practicing in MERCED, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1831202233. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MARIE DAVID, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at 3351 M ST STE 120, MERCED, CA, 95348, with a listed phone of (209) 631-1111. NPI 1831202233 was issued on 08/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAVID 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 1,461 prescription claims written by this provider, covering 242 Medicare beneficiaries and totaling roughly $119K in drug spend, split 10% brand-name and 90% 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

3351 M ST STE 120
MERCED, CA 95348

Provider Details

NPI 1831202233
Specialty General Practice Physician
Credentials MD
Gender Female
NPI Issued 08/17/2006

Hospital and facility affiliations

Facilities where MARIE DAVID, 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.

TIMOTHY S JOHNSTON MD PC
MERCED, 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 MARIE DAVID, MD. Source: openpaymentsdata.cms.gov.

Total received

$220

Largest payer

ABBVIE 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 MARIE DAVID, MD. To verify MARIE DAVID, 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 · Typical

MARIE DAVID, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 1,461 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.

1,461
Total Claims
$119K
Total Drug Cost
242
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,995
Total Day Supply
119,415
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$94K
Generic Drug Cost
$24K

Patient Demographics

Average Patient Age
75.9 years
Avg HCC Risk Score
0.99
Gender Split
63% female / 37% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
120
Levothyroxine Sodium
99
Losartan Potassium
94
Omeprazole
81
Metformin Hcl
62
Metoprolol Succinate
62
Lisinopril
45
Simvastatin
45
Hydrochlorothiazide
41
Montelukast Sodium
38

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

General Practice Physician Overview

How MARIE DAVID, MD fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

MARIE DAVID, MD's 1,461 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in California

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIE DAVID, MD's specialty?
MARIE DAVID, MD specializes in General Practice Physician and practices in MERCED, California. Credentials: MD.
How much does MARIE DAVID, MD prescribe under Medicare Part D?
In 2023, MARIE DAVID, MD wrote 1,461 Medicare Part D claims totaling $119K in drug costs for 242 beneficiaries.
Where is MARIE DAVID, MD located?
MARIE DAVID, MD is located at 3351 M ST STE 120, MERCED, CA, 95348. Phone: (209) 631-1111.
What is MARIE DAVID, MD's NPI number?
MARIE DAVID, MD's National Provider Identifier (NPI) is 1831202233, issued on 08/17/2006.
Does MARIE DAVID, MD prescribe more brand-name or generic drugs?
MARIE DAVID, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $94K in brand drug costs.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does MARIE DAVID, MD prescribe most often?
Based on 2023 Medicare Part D data, MARIE DAVID, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARIE DAVID, MD accept Medicare?
MARIE DAVID, MD appears in CMS Medicare data with 1,461 Part D claims and 242 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIE DAVID, MD's credentials?
MARIE DAVID, MD's NPI is 1831202233 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