NPPES file of Aug 9, 2026

Grant Cox, M.D.

Obstetrics & Gynecology Physician · Tulsa, OK

Grant Cox, M.D. is an obstetrics & gynecology physician with a practice address in Tulsa, Oklahoma, and NPI 1366532871, issued on Oct 13, 2006. Check the license (Oklahoma 20281, 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
1366532871
Name
Grant Cox
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
20281 OK
Self-reported in NPPES; status is on the state search
Practice location
1919 S Wheeling Ave Ste 700, Tulsa, OK 74104
Phone
(918) 712-8700
Enumerated
Oct 13, 2006
Record last updated
Apr 20, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120313000756); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1996
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 1919 S Wheeling Ave Ste 700

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

  1. Paul Gehring, M.D.Obstetrics & Gynecology Physician1013007525
  2. Gena Gray, M.D.Obstetrics & Gynecology Physician1689764110
  3. Danielle Hardin, MDObstetrics & Gynecology Physician1417570631
  4. Sarah Shepherd, D.O.Obstetrics & Gynecology Physician1700117009

Verify Grant Cox 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 20281
    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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32% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

112 Medicare Part D claims for 47 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Grant Cox112
  2. Specialty average165

Most prescribed

  1. Estradiol (Twice Weekly)27 claims
  2. Estradiol18 claims
  3. Misoprostol18 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.

Industry payments in 2024: $6.18

1 payment: food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Grant Cox$6.18
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. OB Gyn Specialists OF Tulsa PLLCTulsa, OK

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

Grant Cox among 438 obstetrics & gynecology physician records in Oklahoma

Grant Cox, M.D. is one of 438 obstetrics & gynecology physician records with a practice address in Oklahoma. 76% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 50% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1996 · median 2006 among the 267 with a school on file
  • Record last updated2017 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Oklahoma

There are 438 obstetrics & gynecology physician records in Oklahoma.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. John Beal, DOTulsa, OK 741041457329815
  2. Michelle Brotherton, MDTulsa, OK 741041285622464
  3. Jennifer Donnelly, M.D.Tulsa, OK 741041316037849
  4. Lynn Frame, MDTulsa, OK 741041871562447
  5. Paul Gehring, M.D.Tulsa, OK 741041013007525
  6. Marsha Howerton Engles, MDTulsa, OK 741041790720456
  7. Lori Hubbard, MDTulsa, OK 741041184739328
  8. Mary Kirk, MDTulsa, OK 741041992819387

Common questions

What is Grant Cox, M.D.'s NPI number?

Grant Cox, M.D.'s National Provider Identifier (NPI) is 1366532871, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Grant Cox, M.D. located?

The NPPES record lists a practice address at 1919 S Wheeling Ave Ste 700, Tulsa, OK, 74104. Phone: (918) 712-8700. Providers update this record themselves, so call before visiting.

How can I verify Grant Cox, M.D.'s license?

NPPES lists Oklahoma license number 20281, 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 Grant Cox, M.D. prescribe under Medicare Part D?

In 2024, Grant Cox, M.D. had 112 Medicare Part D claims for 47 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.