NPPES file of Aug 9, 2026

Brian David Williams, MD

Anesthesiology Physician · Phoenix, AZ

Brian David Williams, MD is an anesthesiology physician with a practice address in Phoenix, Arizona, and NPI 1215917729, issued on Jan 19, 2006. Check the license (Arizona 34590, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215917729
Name
Brian David Williams
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
34590 AZ
Self-reported in NPPES; status is on the state search
Practice location
1850 N Central Ave, Phoenix, AZ 85004
Phone
(602) 744-4765
Enumerated
Jan 19, 2006
Record last updated
Nov 21, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(602) 744-4799
Medicaid ID
993578 AZ
Medicare enrollment
Enrolled (PECOS I20060126000243); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1986
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1850 N Central Ave

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

  1. Michael Adkins, MDAnesthesiology Physician1700858388
  2. John Ammon, MDAnesthesiology Physician1770563108
  3. Leslie Andes, MDAnesthesiology Physician1699745497
  4. Kerry Ando, MDAnesthesiology Physician1881668465
  5. Michael Andrews, MDAnesthesiology Physician1427038124
  6. Carlene AnolickCertified Registered Nurse Anesthetist1629424593

Verify Brian David Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 34590
    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 Arizona 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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The practice group's MIPS final score for 2023 (Medicare payment program): 83.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score87.7
  2. Costout of 100 · 30%71.3
  3. Promoting interoperabilityout of 100 · 25%82.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Battle Born Anesthesia Associates LtdKingman, AZ
  2. Kingman Healthcare IncKingman, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brian David Williams among 1,473 anesthesiology physician records in Arizona

Brian David Williams, MD is one of 1,473 anesthesiology physician records with a practice address in Arizona. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.

  • NPI issued2006 · 16% of these records are older, 44% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1986 · median 2003 among the 984 with a school on file
  • Record last updated2018 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

602 anesthesiology physician records list a practice address in Phoenix

They are 602 of the 31,399 NPPES records with a practice address in Phoenix, and 1,473 anesthesiology physician records in Arizona.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Thomas Beer, M.D.Phoenix, AZ 850041376520437
  2. Stephan Cardon, MDPhoenix, AZ 850041811977515
  3. John Curtis, MDPhoenix, AZ 850041740260454
  4. Michael Dupuy, MDPhoenix, AZ 850041275513970
  5. Elliott Farber, M.D.Phoenix, AZ 850041588653745
  6. Jonathan Feuer, MDPhoenix, AZ 850041700868783
  7. Ralph Gualtieri, MDPhoenix, AZ 850041083694780
  8. David Heaton, M.D.Phoenix, AZ 850041598742116

Common questions

What is Brian David Williams, MD's NPI number?

Brian David Williams, MD's National Provider Identifier (NPI) is 1215917729, issued on Jan 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian David Williams, MD located?

The NPPES record lists a practice address at 1850 N Central Ave, Phoenix, AZ, 85004. Phone: (602) 744-4765. Providers update this record themselves, so call before visiting.

How can I verify Brian David Williams, MD's license?

NPPES lists Arizona license number 34590, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Brian David Williams, MD's MIPS final score?

The 2023 MIPS final score is 83.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.