2026 NPPES data Family Medicine Physician NPI 1538262522 MD
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DIRK MOUS, MD

Family Medicine 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
4K
Medicare Part D claims · 288 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.5085/100
▲ 13 pts above national avg 83.1 · [object Object]
Industry payments
$817.65
45 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

DIRK MOUS, MD reported a CMS MIPS final score of 96.5085/100 — above the 83.1 national average — and filed 3,781 Medicare Part D claims in 2023.

96.5085/100
MIPS score · +13 vs avg
4K
Part D claims, 2023
87%
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.

DIRK MOUS, MD's MIPS score vs every scored U.S. clinician

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

97 Top 17% higher than 83% 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%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

DIRK MOUS, MD 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 DIRK MOUS, MD?

High performer (top quartile)

NPI registry status

Active

Issued 09/06/2006

NPI 1538262522

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

3,781 11% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

MIPS final score

96.5085/100 13.408500000000004% pts

Exceptional band

vs 83.1 national avg

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

Medicare quality performance — MIPS

DIRK MOUS, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average

High performer (top quartile)
MIPS Final Score
96.5085/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Family Medicine Physician) — 96.5085/100 vs national avg 83.1

0%100%National avg83%96.5%
MIPS final score (Family Medicine Physician) — 96.5085/100 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).

DIRK MOUS, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 374 W OLIVE AVENUE, MERCED, CA, 95348, with a listed phone of (209) 383-3076. NPI 1538262522 was issued on 09/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MOUS 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 3,781 prescription claims written by this provider, covering 288 Medicare beneficiaries and totaling roughly $481K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 4.8%. 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 96.5085/100 for the 2023 performance year (Quality 80.342), compared with the national average of 83.1.

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

374 W OLIVE AVENUE
MERCED, CA 95348

Provider Details

NPI 1538262522
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 09/06/2006

CMS Quality Score (MIPS)

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

96.5085
Final Score
Avg: 83.1
80.342
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where DIRK MOUS, 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.

MERCED FACULTY ASSOCIATES MEDICAL GROUP INCORPORATED
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 DIRK MOUS, MD. Source: openpaymentsdata.cms.gov.

Total received

$818

Largest payer

GlaxoSmithKline, LLC.

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 DIRK MOUS, MD. To verify DIRK MOUS, 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

DIRK MOUS, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 3,781 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.

3,781
Total Claims
$481K
Total Drug Cost
288
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,212
Total Day Supply
271,184
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$395K
Generic Drug Cost
$84K
Opioid Claims
183 (4.8% rate)
Antibiotic Claims
60

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.04
Gender Split
45% female / 55% male
Age Distribution
<65: 24, 65-74: 145, 75-84: 91, 85+: 28

Top Prescribed Drugs (Medicare Part D)

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

What DIRK MOUS, 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
Levothyroxine Sodium
227
Amlodipine Besylate
185
Losartan Potassium
171
Atorvastatin Calcium
150
Metformin Hcl
131
Metoprolol Succinate
112
Omeprazole
86
Lisinopril
83
Hydrochlorothiazide
76
Pravastatin Sodium
70

* 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 DIRK MOUS, 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

DIRK MOUS, MD's 3,781 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 MOUS.

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

Frequently Asked Questions

What is DIRK MOUS, MD's specialty?
DIRK MOUS, MD specializes in Family Medicine Physician and practices in MERCED, California. Credentials: MD.
How much does DIRK MOUS, MD prescribe under Medicare Part D?
In 2023, DIRK MOUS, MD wrote 3,781 Medicare Part D claims totaling $481K in drug costs for 288 beneficiaries.
What is DIRK MOUS, MD's Medicare quality score?
DIRK MOUS, MD has a CMS MIPS Final Score of 96.5085/100 (Quality: 80.342). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DIRK MOUS, MD located?
DIRK MOUS, MD is located at 374 W OLIVE AVENUE, MERCED, CA, 95348. Phone: (209) 383-3076.
What is DIRK MOUS, MD's NPI number?
DIRK MOUS, MD's National Provider Identifier (NPI) is 1538262522, issued on 09/06/2006.
Does DIRK MOUS, MD prescribe more brand-name or generic drugs?
DIRK MOUS, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $395K in brand drug costs.
Does DIRK MOUS, MD prescribe opioids?
Yes, DIRK MOUS, MD had 183 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
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 DIRK MOUS, MD prescribe most often?
Based on 2023 Medicare Part D data, DIRK MOUS, MD's most frequently prescribed drugs include Levothyroxine Sodium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DIRK MOUS, MD accept Medicare?
DIRK MOUS, MD appears in CMS Medicare data with 3,781 Part D claims and 288 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DIRK MOUS, MD's credentials?
DIRK MOUS, MD's NPI is 1538262522 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.
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