2026 NPPES data Family Medicine Physician NPI 1639172075 D.O. P C
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ROBERT CLARY, D.O. P C

Family Medicine Physician in SHELBY, Montana. 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
9K
Medicare Part D claims · 344 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
15.1175/100
▼ 68 pts below national avg 83.1 · [object Object]
What the federal data reveals: ROBERT CLARY, D.O. P C is a Family Medicine Physician ([object Object]) practicing in SHELBY, Montana with a Medicare Part D prescribing footprint of 9K claims across 344 beneficiaries — 7% brand-name prescribing . Their CMS MIPS Final Score of 15.1175/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ROBERT CLARY, D.O. P C reported a CMS MIPS final score of 15.1175 out of 100, below the 83.1 national average, and filed 8,530 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ROBERT CLARY, D.O. P C 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).

ROBERT CLARY, D.O. P C at a glance

Below national average

NPI registry status

Active

Issued 05/31/2005

NPI 1639172075

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

8,530 150% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

MIPS final score

15.1175/100 67.98249999999999% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in Montana

How Family Medicine Physician compares to other specialties among Montana providers

Montana providers

Family Medicine Physician share within Montana

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

Medicare quality performance — MIPS

ROBERT CLARY, D.O. P C's 2023 MIPS final score plotted against the Family Medicine Physician national average

Below national average
MIPS Final Score
15.1175/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Family Medicine Physician) — 15.1175/100 vs national avg 83.1

0%100%National avg83%15.1%
MIPS final score (Family Medicine Physician) — 15.1175/100 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).

ROBERT CLARY, D.O. P C is a Family Medicine Physician provider practicing in SHELBY, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O. P C. NPI: 1639172075. 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.

ROBERT CLARY, D.O. P C appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. P C credentials at 100 MAIN ST STE C, SHELBY, MT, 59474, with a listed phone of (406) 424-8800. NPI 1639172075 was issued on 05/31/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLARY 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 8,530 prescription claims written by this provider, covering 344 Medicare beneficiaries and totaling roughly $457K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 4.4%. 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 15.1175/100 for the 2023 performance year (Quality 0, Cost 50.3915), 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

100 MAIN ST STE C
SHELBY, MT 59474

Provider Details

NPI 1639172075
Specialty Family Medicine Physician
Credentials D.O. P C
Gender Male
NPI Issued 05/31/2005

CMS Quality Score (MIPS)

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

15.1175
Final Score
Avg: 83.1
0
Quality
50.3915
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where ROBERT CLARY, D.O. P C 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.

LOGAN HEALTH - SHELBY
SHELBY, MT
Critical Access Hospitals
CMS CCN: 271328

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

Brand vs generic prescribing mix · Generic-heavy

ROBERT CLARY, D.O. P C — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 8,530 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.

8,530
Total Claims
$457K
Total Drug Cost
344
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13,527
Total Day Supply
378,036
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$286K
Generic Drug Cost
$169K
Opioid Claims
378 (4.4% rate)
Antibiotic Claims
413

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
0.83
Gender Split
52% female / 48% male
Age Distribution
<65: 19, 65-74: 201, 75-84: 87, 85+: 37

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Simvastatin
298
Losartan Potassium
287
Potassium Chloride
283
Levothyroxine Sodium
275
Amlodipine Besylate
264
Pantoprazole Sodium
225
Metoprolol Succinate
217
Atorvastatin Calcium
211
Lisinopril
197
Furosemide
171

* 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 ROBERT CLARY, D.O. P C 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

ROBERT CLARY, D.O. P C's 8,530 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Montana

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

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

Frequently Asked Questions

What is ROBERT CLARY, D.O. P C's specialty?
ROBERT CLARY, D.O. P C specializes in Family Medicine Physician and practices in SHELBY, Montana. Credentials: D.O. P C.
How much does ROBERT CLARY, D.O. P C prescribe under Medicare Part D?
In 2023, ROBERT CLARY, D.O. P C wrote 8,530 Medicare Part D claims totaling $457K in drug costs for 344 beneficiaries.
What is ROBERT CLARY, D.O. P C's Medicare quality score?
ROBERT CLARY, D.O. P C has a CMS MIPS Final Score of 15.1175/100 (Quality: 0, Cost: 50.3915). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ROBERT CLARY, D.O. P C located?
ROBERT CLARY, D.O. P C is located at 100 MAIN ST STE C, SHELBY, MT, 59474. Phone: (406) 424-8800.
What is ROBERT CLARY, D.O. P C's NPI number?
ROBERT CLARY, D.O. P C's National Provider Identifier (NPI) is 1639172075, issued on 05/31/2005.
Does ROBERT CLARY, D.O. P C prescribe more brand-name or generic drugs?
ROBERT CLARY, D.O. P C's prescribing is 7% brand-name and 93% generic drugs by claim count, with $286K in brand drug costs.
Does ROBERT CLARY, D.O. P C prescribe opioids?
Yes, ROBERT CLARY, D.O. P C had 378 opioid claims in 2023 with an opioid prescribing rate of 4.4%.
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 ROBERT CLARY, D.O. P C prescribe most often?
Based on 2023 Medicare Part D data, ROBERT CLARY, D.O. P C's most frequently prescribed drugs include Simvastatin, Losartan Potassium, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROBERT CLARY, D.O. P C accept Medicare?
ROBERT CLARY, D.O. P C appears in CMS Medicare data with 8,530 Part D claims and 344 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROBERT CLARY, D.O. P C's credentials?
ROBERT CLARY, D.O. P C's NPI is 1639172075 with credentials D.O. P C. 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