NPPES file of Aug 9, 2026

Robert Williams, M.D.

Family Medicine Physician · Golden, CO

Robert Williams, M.D. is a family medicine physician with a practice address in Golden, Colorado, and NPI 1548268139, issued on Jul 8, 2005. Check the license (Colorado 16314, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548268139
Name
Robert Williams
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
16314 CO
Self-reported in NPPES; status is on the state search
Practice location
1707 Cole Blvd, Golden, CO 80401
Phone
(303) 233-8295
Enumerated
Jul 8, 2005
Record last updated
Jul 13, 2026
Fax
(303) 233-8443
Medicaid ID
01163146 CO
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1707 Cole Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ernest Castro, MDFamily Medicine Physician1982785721
  2. Duane Claassen, M.D.Family Medicine Physician1497759880
  3. Benjamin Greller, MDInternal Medicine Physician1891829545
  4. Carrie Hildebrandt, RXN,NPAdult Psychiatric/Mental Health Clinical Nurse Specialist1427102052
  5. Julie HsuPhysician Assistant1417065244
  6. Arti Karna, MDInternal Medicine Physician1326158627

Verify Robert Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 16314
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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100% fewer Medicare Part D claims than the average family medicine physician in 2024

13 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 92% of claims.

  1. Robert Williams13
  2. Specialty average3,544

Most prescribed

  1. Breo Ellipta12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Robert Williams among 3,563 family medicine physician records in Colorado

Robert Williams, M.D. is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

41 family medicine physician records list a practice address in Golden

They are 41 of the 1,371 NPPES records with a practice address in Golden, and 3,563 family medicine physician records in Colorado.

The 8 family medicine physician records with the nearest ZIP codes

  1. Patricia Brumbaugh, M.D.Golden, CO 804011770587156
  2. Ernest Castro, MDGolden, CO 804011982785721
  3. Duane Claassen, M.D.Golden, CO 804011497759880
  4. Douglas Forward, M.D.Golden, CO 804011194722538
  5. John Gale, M.D.Golden, CO 804011386641736
  6. Erick Gomer, MDLakewood, CO 804011356488639
  7. Mike McMillan, MDGolden, CO 804011801868401
  8. Mark Pattridge, M.D.Golden, CO 804011437156742

Common questions

What is Robert Williams, M.D.'s NPI number?

Robert Williams, M.D.'s National Provider Identifier (NPI) is 1548268139, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Robert Williams, M.D. located?

The NPPES record lists a practice address at 1707 Cole Blvd, Golden, CO, 80401. Phone: (303) 233-8295. Providers update this record themselves, so call before visiting.

How can I verify Robert Williams, M.D.'s license?

NPPES lists Colorado license number 16314, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Robert Williams, M.D. prescribe under Medicare Part D?

In 2024, Robert Williams, M.D. had 13 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.