NPPES file of Aug 9, 2026

Michael Ray Williams, D.O.

Anesthesiology Physician · Fredericksburg, TX

Michael Ray Williams, D.O. is an anesthesiology physician with a practice address in Fredericksburg, Texas, and NPI 1093783011, issued on Mar 8, 2006. Check the license (Texas GO288, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1093783011
Name
Michael Ray Williams
Credential
D.O.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
GO288 TX
Self-reported in NPPES; status is on the state search
Practice location
415 S Washington St, Fredericksburg, TX 78624
Phone
(830) 997-9170
Enumerated
Mar 8, 2006
Record last updated
Nov 29, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(830) 997-9226
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 415 S Washington St

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

  1. Mary Hardie, CRNACertified Registered Nurse Anesthetist1215904479
  2. Timothy Roman, CRNACertified Registered Nurse Anesthetist1154399087

Verify Michael Ray Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license GO288
    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 Texas license search

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Michael Ray Williams among 4,635 anesthesiology physician records in Texas

Michael Ray Williams, D.O. is one of 4,635 anesthesiology physician records with a practice address in Texas. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 54% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 71% of these records are
  • Record last updated2007 · 59% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in Texas

There are 4,635 anesthesiology physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Chris Avery, MDFredericksburg, TX 786241508091703
  2. David Wild, M.D.Fredericksburg, TX 786241164628418
  3. John Delhagen, M.D.Georgetown, TX 786261053325019
  4. Holly Helms, MDGeorgetown, TX 786261144374836
  5. Tom Mulcahey, M.D.Georgetown, TX 786261083628051
  6. Jay Pennington, M.D.Georgetown, TX 786261184638967
  7. Mitchell Evans, MDCedar Park, TX 786131760463129
  8. Paul McKee, M.D.Johnson City, TX 786361013971548

Common questions

What is Michael Ray Williams, D.O.'s NPI number?

Michael Ray Williams, D.O.'s National Provider Identifier (NPI) is 1093783011, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Ray Williams, D.O. located?

The NPPES record lists a practice address at 415 S Washington St, Fredericksburg, TX, 78624. Phone: (830) 997-9170. Providers update this record themselves, so call before visiting.

How can I verify Michael Ray Williams, D.O.'s license?

NPPES lists Texas license number GO288, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. 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. 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.