2026 NPPES data Internal Medicine Physician NPI 1780940098 D.O.
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ROMI COOLIDGE, D.O.

Internal Medicine Physician in HAMILTON, 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
200
Medicare Part D claims · 101 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ROMI COOLIDGE, D.O. is a Internal Medicine Physician ([object Object]) practicing in HAMILTON, Montana with a Medicare Part D prescribing footprint of 200 claims across 101 beneficiaries — 15% brand-name prescribing .

What stands out: ROMI COOLIDGE, D.O. filed 200 Medicare Part D claims in 2023 across HAMILTON, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ROMI COOLIDGE, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ROMI COOLIDGE, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/11/2012

NPI 1780940098

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

200 93% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Montana

How Internal Medicine Physician compares to other specialties among Montana providers

Montana providers

Internal Medicine Physician share within Montana

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

Specialty board-certification context

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

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

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

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

ROMI COOLIDGE, D.O. is a Internal Medicine Physician provider practicing in HAMILTON, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1780940098. 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.

ROMI COOLIDGE, D.O. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding D.O. credentials at 1200 WESTWOOD DR, HAMILTON, MT, 59840, with a listed phone of (406) 363-2211. NPI 1780940098 was issued on 04/11/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COOLIDGE 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 200 prescription claims written by this provider, covering 101 Medicare beneficiaries and totaling roughly $16K in drug spend, split 15% brand-name and 85% 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

1200 WESTWOOD DR
HAMILTON, MT 59840

Provider Details

NPI 1780940098
Specialty Internal Medicine Physician
Credentials D.O.
Gender Female
NPI Issued 04/11/2012

Hospital and facility affiliations

Facilities where ROMI COOLIDGE, D.O. 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.

MARCUS DALY MEMORIAL HOSPITAL CORPORATION
HAMILTON, MT
SAPPHIRE COMMUNITY HEALTH INC
HAMILTON, MT

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 · Typical

ROMI COOLIDGE, D.O. — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 200 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.

200
Total Claims
$16K
Total Drug Cost
101
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
239
Total Day Supply
4,598
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$14K
Generic Drug Cost
$2K
Antibiotic Claims
44

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.58
Gender Split
63% female / 37% male
Age Distribution
<65: 17, 65-74: 34, 75-84: 30, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Xarelto
Rivaroxaban
20
Prednisone
16
Potassium Chloride
15

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

Internal Medicine Physician Overview

How ROMI COOLIDGE, D.O. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

ROMI COOLIDGE, D.O.'s 200 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Montana

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

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

Frequently Asked Questions

What is ROMI COOLIDGE, D.O.'s specialty?
ROMI COOLIDGE, D.O. specializes in Internal Medicine Physician and practices in HAMILTON, Montana. Credentials: D.O..
How much does ROMI COOLIDGE, D.O. prescribe under Medicare Part D?
In 2023, ROMI COOLIDGE, D.O. wrote 200 Medicare Part D claims totaling $16K in drug costs for 101 beneficiaries.
Where is ROMI COOLIDGE, D.O. located?
ROMI COOLIDGE, D.O. is located at 1200 WESTWOOD DR, HAMILTON, MT, 59840. Phone: (406) 363-2211.
What is ROMI COOLIDGE, D.O.'s NPI number?
ROMI COOLIDGE, D.O.'s National Provider Identifier (NPI) is 1780940098, issued on 04/11/2012.
Does ROMI COOLIDGE, D.O. prescribe more brand-name or generic drugs?
ROMI COOLIDGE, D.O.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $14K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does ROMI COOLIDGE, D.O. prescribe most often?
Based on 2023 Medicare Part D data, ROMI COOLIDGE, D.O.'s most frequently prescribed drugs include Xarelto, Prednisone, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ROMI COOLIDGE, D.O. accept Medicare?
ROMI COOLIDGE, D.O. appears in CMS Medicare data with 200 Part D claims and 101 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROMI COOLIDGE, D.O.'s credentials?
ROMI COOLIDGE, D.O.'s NPI is 1780940098 with credentials D.O.. 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