NPPES file of Aug 9, 2026

Colby D. Mayo, DO

Emergency Medicine Physician · Oklahoma City, OK

Colby D. Mayo, DO is an emergency medicine physician with a practice address in Oklahoma City, Oklahoma, and NPI 1154383297, issued on Apr 4, 2006. Check the license (Oklahoma 4029, 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
1154383297
Name
Colby D. Mayo
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
4029 OK
Self-reported in NPPES; status is on the state search
Practice location
4300 W Memorial RD, Oklahoma City, OK 73120
Phone
(405) 752-3733
Enumerated
Apr 4, 2006
Record last updated
Jul 21, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(405) 749-4561
Medicaid IDs
200005300C OK
200005300A OK
200005300B OK
Medicare enrollment
Enrolled (PECOS I20060707000079); accepts Medicare assignment
Medical or professional school
Oklahoma State University College Of Osteopathic Medicine, 1998
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 4300 W Memorial RD

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

  1. David Abernethy, M.D.Hospitalist Physician1811194749
  2. Nicholas Anastas, DOInternal Medicine Physician1922597905
  3. Laura Apodaca, RNEmergency Registered Nurse1184586406
  4. Todd Arms, PAPhysician Assistant1235309386
  5. Jamie BahamRegistered Dietitian1093443087
  6. Steven Baker, D.O.Hospitalist Physician1831174507

Verify Colby D. Mayo 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 4029
    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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5.2 times the Medicare Part D claims of the average emergency medicine physician in 2024

1,176 Medicare Part D claims for 548 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 219 claims were for opioids.

  1. Colby Mayo1,176
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen134 claims
  2. Ondansetron Odt130 claims
  3. Albuterol Sulfate Hfa53 claims
  4. Prednisone52 claims
  5. Tizanidine Hcl51 claims
  6. Oxycodone-Acetaminophen48 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 2 group practices

  1. Emergency Services OF Oklahoma PCOklahoma City, OK
  2. Mercy Clinic Oklahoma CommunitiesAda, OK

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

Colby D. Mayo among 748 emergency medicine physician records in Oklahoma

Colby D. Mayo, DO 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 70% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1998 · median 2016 among the 438 with a school on file
  • Record last updated2017 · 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. Brandon Brown, M.D.Oklahoma City, OK 731201497071609
  2. Robert Crane, MDOklahoma City, OK 731201033344437
  3. Timothy Hill, MDOklahoma City, OK 731201447211461
  4. Gary Hillman, D.O.Oklahoma City, OK 731201760444160
  5. Brent Mefford, MDOklahoma City, OK 731201497774293
  6. Mary Mustain, MDOklahoma City, OK 731201235384355
  7. Juan Nalagan, MDOklahoma City, OK 731201841259876
  8. Paul Orcutt, MDOklahoma City, OK 731201306806898

Common questions

What is Colby D. Mayo, DO's NPI number?

Colby D. Mayo, DO's National Provider Identifier (NPI) is 1154383297, issued on Apr 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Colby D. Mayo, DO located?

The NPPES record lists a practice address at 4300 W Memorial RD, Oklahoma City, OK, 73120. Phone: (405) 752-3733. Providers update this record themselves, so call before visiting.

How can I verify Colby D. Mayo, DO's license?

NPPES lists Oklahoma license number 4029, 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 Colby D. Mayo, DO prescribe under Medicare Part D?

In 2024, Colby D. Mayo, DO had 1,176 Medicare Part D claims for 548 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.