2026 NPPES data Internal Medicine Physician NPI 1740317775 MD
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COLIN COMBS, MD

Internal Medicine Physician in WHEAT RIDGE, Colorado. 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
12K
Medicare Part D claims · 911 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

COLIN COMBS, MD filed 12,228 Medicare Part D claims in 2023 as a Internal Medicine Physician in WHEAT RIDGE, Colorado, prescribing 90% generic.

12K
Part D claims, 2023
90%
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.

COLIN COMBS, MD's Medicare Part D volume vs every U.S. prescriber

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

12,228 Top 2% higher than 98% 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)

COLIN COMBS, 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 COLIN COMBS, MD?

Quality data not reported

NPI registry status

Active

Issued 02/27/2007

NPI 1740317775

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

12,228 350% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Colorado

How Internal Medicine Physician compares to other specialties among Colorado providers

Colorado providers

Internal Medicine Physician share within Colorado

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

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).

COLIN COMBS, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 4803 WARD RD, WHEAT RIDGE, CO, 80033, with a listed phone of (303) 338-4545. NPI 1740317775 was issued on 02/27/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COMBS 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 12,228 prescription claims written by this provider, covering 911 Medicare beneficiaries and totaling roughly $512K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 3.2%. 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

4803 WARD RD
WHEAT RIDGE, CO 80033

Provider Details

NPI 1740317775
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 02/27/2007

Hospital and facility affiliations

Facilities where COLIN COMBS, 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.

COLORADO PERMANENTE MEDICAL GROUP PC
DENVER, CO

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

COLIN COMBS, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 12,228 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.

12,228
Total Claims
$512K
Total Drug Cost
911
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
32,080
Total Day Supply
950,603
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$309K
Generic Drug Cost
$200K
Opioid Claims
390 (3.2% rate)
Antibiotic Claims
151

Patient Demographics

Average Patient Age
77.1 years
Avg HCC Risk Score
1.09
Gender Split
38% female / 62% male

Top Prescribed Drugs (Medicare Part D)

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

What COLIN COMBS, 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
1,062
Levothyroxine Sodium
545
Simvastatin
541
Losartan Potassium
532
Omeprazole
442
Lisinopril
422
Amlodipine Besylate
418
Tamsulosin Hcl
402
Rosuvastatin Calcium
314
Metformin Hcl
286

* 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 COLIN COMBS, MD 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

COLIN COMBS, MD's 12,228 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Colorado

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

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

Frequently Asked Questions

What is COLIN COMBS, MD's specialty?
COLIN COMBS, MD specializes in Internal Medicine Physician and practices in WHEAT RIDGE, Colorado. Credentials: MD.
How much does COLIN COMBS, MD prescribe under Medicare Part D?
In 2023, COLIN COMBS, MD wrote 12,228 Medicare Part D claims totaling $512K in drug costs for 911 beneficiaries.
Where is COLIN COMBS, MD located?
COLIN COMBS, MD is located at 4803 WARD RD, WHEAT RIDGE, CO, 80033. Phone: (303) 338-4545.
What is COLIN COMBS, MD's NPI number?
COLIN COMBS, MD's National Provider Identifier (NPI) is 1740317775, issued on 02/27/2007.
Does COLIN COMBS, MD prescribe more brand-name or generic drugs?
COLIN COMBS, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $309K in brand drug costs.
Does COLIN COMBS, MD prescribe opioids?
Yes, COLIN COMBS, MD had 390 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
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 COLIN COMBS, MD prescribe most often?
Based on 2023 Medicare Part D data, COLIN COMBS, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Simvastatin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does COLIN COMBS, MD accept Medicare?
COLIN COMBS, MD appears in CMS Medicare data with 12,228 Part D claims and 911 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify COLIN COMBS, MD's credentials?
COLIN COMBS, MD's NPI is 1740317775 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