NPPES file of Aug 9, 2026

Robert Allyn Rankin, M.D.

Gastroenterology Physician · Oklahoma City, OK

Robert Allyn Rankin, M.D. is a gastroenterology physician with a practice address in Oklahoma City, Oklahoma, and NPI 1174507966, issued on Dec 5, 2005. Check the license (Oklahoma 12787, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; 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
1174507966
Name
Robert Allyn Rankin
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
12787 OK
Self-reported in NPPES; status is on the state search
Practice location
3366 NW Expressway, Oklahoma City, OK 73112
Phone
(405) 702-1300
Enumerated
Dec 5, 2005
Record last updated
Aug 10, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(405) 702-1280
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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8 nearest gastroenterology physician records → All 160 in Oklahoma → Look up another NPI →

Also registered at 3366 NW Expressway

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

  1. Abeera Ali, M.D.Neurology Physician1699150409
  2. Gary Bond, MDNephrology Physician1053316125
  3. Ashley BouknightFamily Nurse Practitioner1205440351
  4. Leighann Brown, CNSAcute Care Clinical Nurse Specialist1326324195
  5. Bradley Carter, MDNephrology Physician1902801590
  6. William Cook, M.D.Pulmonary Disease Physician1831155456

Verify Robert Allyn Rankin 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 12787    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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Robert Allyn Rankin among 160 gastroenterology physician records in Oklahoma

Robert Allyn Rankin, M.D. is one of 160 gastroenterology physician records with a practice address in Oklahoma. 81% 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 69% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2011 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Oklahoma

There are 160 gastroenterology physician records in Oklahoma. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 160 in Oklahoma → Every provider in Oklahoma City → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Kirtida Kumar, MDOklahoma City, OK 731121649274374
  2. John Maple, DOOklahoma City, OK 731121902879455
  3. Paul Maton, M.D.Oklahoma City, OK 731121538143466
  4. Matthew McBride, MDOklahoma City, OK 731121871536920
  5. Mark Mellow, M.D.Oklahoma City, OK 731121366426298
  6. Don Murray, M.D.Oklahoma City, OK 731121215912787
  7. Carl Raczkowski, M.D.Oklahoma City, OK 731121851375646
  8. Abbas Raza, MDOklahoma City, OK 731121326006040

Common questions

What is Robert Allyn Rankin, M.D.'s NPI number?

Robert Allyn Rankin, M.D.'s National Provider Identifier (NPI) is 1174507966, issued on Dec 5, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Robert Allyn Rankin, M.D. located?

The NPPES record lists a practice address at 3366 NW Expressway, Oklahoma City, OK, 73112. Phone: (405) 702-1300. Providers update this record themselves, so call before visiting.

How can I verify Robert Allyn Rankin, M.D.'s license?

NPPES lists Oklahoma license number 12787, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.