NPPES file of Aug 9, 2026

Brian K. Williams, M.D.

Family Medicine Physician · Alamosa, CO

Brian K. Williams, M.D. is a family medicine physician with a practice address in Alamosa, Colorado, and NPI 1265641013, issued on May 21, 2007. Check the license (Colorado 51706, 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
1265641013
Name
Brian K. Williams
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
51706 CO
N4843 TX
Self-reported in NPPES; status is on the state search
Practice location
2115 Stuart Ave, Alamosa, CO 81101
Phone
(719) 589-8082
Enumerated
May 21, 2007
Record last updated
Jun 10, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(719) 587-6354
Medicaid ID
23583053 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 2115 Stuart Ave

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

  1. Madison Adams, PT, DPTPhysical Therapist1346723186
  2. Amy Blakeslee, PA-CPhysician Assistant1073165486
  3. Megan Brownell, R.D.Registered Dietitian1982961041
  4. Cindy Brush, RNOncology Registered Nurse1285015586
  5. Brenna Cash, MA, LPC, LAC, NCCProfessional Counselor1285149757
  6. Maureen Cooper, M.D.Hematology & Oncology Physician1356310890

Verify Brian K. Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 51706
    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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Industry payments in 2024: $237.21

19 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Williams$237.21
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Brian K. Williams among 3,563 family medicine physician records in Colorado

Brian K. 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 2007, is newer than 44% of them.

  • NPI issued2007 · 44% of these records are older, 42% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2013 · 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).

14 family medicine physician records list a practice address in Alamosa

They are 14 of the 604 NPPES records with a practice address in Alamosa, and 3,563 family medicine physician records in Colorado.

The 8 family medicine physician records with the nearest ZIP codes

  1. Tammy Gregg, D.O.Alamosa, CO 811011760685580
  2. Michael Gruber, M D PCAlamosa, CO 811011225032998
  3. Bonnie Head, MDAlamosa, CO 811011801962485
  4. Joel Kaufman, MDAlamosa, CO 811011578541587
  5. Norman Macleod, M.D.Alamosa, CO 811011275521015
  6. Mariah Maestas, DOAlamosa, CO 811011992445282
  7. Lauren Sonderegger, M.D.Alamosa, CO 811011891180949
  8. Maria Soto, M.D.Alamosa, CO 811011366479909

Common questions

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

Brian K. Williams, M.D.'s National Provider Identifier (NPI) is 1265641013, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Brian K. Williams, M.D. located?

The NPPES record lists a practice address at 2115 Stuart Ave, Alamosa, CO, 81101. Phone: (719) 589-8082. Providers update this record themselves, so call before visiting.

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

NPPES lists Colorado license number 51706, 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.

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.