NPPES file of Aug 9, 2026

Brian Baker, D.O.

Emergency Medicine Physician · Oklahoma City, OK

Brian Baker, D.O. is an emergency medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1922459015, issued on Jun 29, 2016. Check the license (Oklahoma 0173R, 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
1922459015
Name
Brian Baker
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
0173R OK
Self-reported in NPPES; status is on the state search
Practice location
4200 S Douglas Ave, Oklahoma City, OK 73109
Phone
(405) 636-7195
Enumerated
Jun 29, 2016
Record last updated
Jun 29, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170828001317); accepts Medicare assignment
Medical or professional school
Oklahoma State University College Of Osteopathic Medicine, 2016
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 4200 S Douglas Ave

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

  1. Leslie Barcenas, DOEmergency Medicine Physician1134701089
  2. William Barnes, MDSpecialist1528061744
  3. Holly Costner, D.O.Emergency Medicine Physician1912159492
  4. Tiffany Elliott, D.O.Emergency Medicine Physician1801026851
  5. Myles Fisher, D.O.Emergency Medicine Physician1407208333
  6. Levi Garrison, D.O.Emergency Medicine Physician1447601521

Verify Brian Baker 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 0173R
    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

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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2.3 times the Medicare Part D claims of the average emergency medicine physician in 2024

512 Medicare Part D claims for 289 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 59 claims were for opioids.

  1. Brian Baker512
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt81 claims
  2. Cephalexin57 claims
  3. Hydrocodone-Acetaminophen54 claims
  4. Doxycycline Hyclate38 claims
  5. Prednisone31 claims
  6. Albuterol Sulfate Hfa27 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. South Central Emergency Services, PCMiami, OK

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

Brian Baker among 748 emergency medicine physician records in Oklahoma

Brian Baker, D.O. is one of 748 emergency medicine physician records with a practice address in Oklahoma. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 62% of them.

  • NPI issued2016 · 62% of these records are older, 33% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2016 · median 2016 among the 438 with a school on file
  • Record last updated2016 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Oklahoma

There are 748 emergency medicine physician records in Oklahoma.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Tinuola AgbabiakaOklahoma City, OK 731091790097459
  2. Juliana Bizzell, D.O.Oklahoma City, OK 731091437313566
  3. Carrie Clark, D.OOklahoma City, OK 731091942445804
  4. Holly Costner, D.O.Oklahoma City, OK 731091912159492
  5. Colby Edwards, D.O.Oklahoma City, OK 731091114093655
  6. Tiffany Elliott, D.O.Oklahoma City, OK 731091801026851
  7. Adam Henson, D.O.Oklahoma City, OK 731091093963498
  8. Jarrod Mueggenborg, D.O.Oklahoma City, OK 731091629389432

Common questions

What is Brian Baker, D.O.'s NPI number?

Brian Baker, D.O.'s National Provider Identifier (NPI) is 1922459015, issued on Jun 29, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Brian Baker, D.O. located?

The NPPES record lists a practice address at 4200 S Douglas Ave, Oklahoma City, OK, 73109. Phone: (405) 636-7195. Providers update this record themselves, so call before visiting.

How can I verify Brian Baker, D.O.'s license?

NPPES lists Oklahoma license number 0173R, 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 Brian Baker, D.O. prescribe under Medicare Part D?

In 2024, Brian Baker, D.O. had 512 Medicare Part D claims for 289 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.