NPPES file of Aug 9, 2026

Ashley Elizabeth Walker, M.D.

Psychiatry Physician · Tulsa, OK

Ashley Elizabeth Walker, M.D. is a psychiatry physician with a practice address in Tulsa, Oklahoma, and NPI 1033348412, issued on Jul 7, 2009. Check the license (Oklahoma 27267, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; 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
1033348412
Name
Ashley Elizabeth Walker
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
27267 OK
Self-reported in NPPES; status is on the state search
Practice location
4502 E 41St St, Tulsa, OK 74135
Phone
(918) 660-3000
Enumerated
Jul 7, 2009
Record last updated
Jul 7, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120621000449); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 2009
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 4502 E 41St St

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

  1. Jennifer AbercrombieCase Manager/Care Coordinator1215741889
  2. Ashwin AdiviStudent in an Organized Health Care Education/Training Program1942950399
  3. Noor Ahmed, DOEmergency Medicine Physician1679102446
  4. Akhilesh Alexander, DOStudent in an Organized Health Care Education/Training Program1700626405
  5. Qaidar AlizaiStudent in an Organized Health Care Education/Training Program1306787122
  6. Shantana Allen, LPCClinical Social Worker1942625165

Verify Ashley Elizabeth Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
    Search for license 27267
    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 Oklahoma license search

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85% fewer Medicare Part D claims than the average psychiatry physician in 2024

146 Medicare Part D claims for 19 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Ashley Walker146
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl14 claims
  2. Lamotrigine13 claims
  3. Bupropion Xl12 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.

Bills Medicare through one group practice

  1. Board OF Regents OF The University OF Oklahoma OU Physicians TulsaTulsa, OK

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

Ashley Elizabeth Walker among 463 psychiatry physician records in Oklahoma

Ashley Elizabeth Walker, M.D. is one of 463 psychiatry physician records with a practice address in Oklahoma. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.

  • NPI issued2009 · 57% of these records are older, 40% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2009 · median 2005 among the 213 with a school on file
  • Record last updated2009 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Oklahoma

There are 463 psychiatry physician records in Oklahoma.

The 8 psychiatry physician records with the nearest ZIP codes

  1. George Blake, MDTulsa, OK 741351417036641
  2. Jane Bowerfind, MDTulsa, OK 741351316006331
  3. Stephen Brasseux, M.D.Tulsa, OK 741351790867687
  4. Paul Erdmann, MDTulsa, OK 741351255302329
  5. Stephanie Forbes, DOTulsa, OK 741351205806478
  6. Ondria Gleason, MDTulsa, OK 741351255301651
  7. Virginia Heller, MDTulsa, OK 741351336122217
  8. Charles Hill, M.D.Tulsa, OK 741351013979335

Common questions

What is Ashley Elizabeth Walker, M.D.'s NPI number?

Ashley Elizabeth Walker, M.D.'s National Provider Identifier (NPI) is 1033348412, issued on Jul 7, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Ashley Elizabeth Walker, M.D. located?

The NPPES record lists a practice address at 4502 E 41St St, Tulsa, OK, 74135. Phone: (918) 660-3000. Providers update this record themselves, so call before visiting.

How can I verify Ashley Elizabeth Walker, M.D.'s license?

NPPES lists Oklahoma license number 27267, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ashley Elizabeth Walker, M.D. prescribe under Medicare Part D?

In 2024, Ashley Elizabeth Walker, M.D. had 146 Medicare Part D claims for 19 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.