NPPES file of Aug 9, 2026

Gregory S. Shanbour, D.D.S., M.S.

Periodontics · Oklahoma City, OK

Gregory S. Shanbour, D.D.S., M.S. is a periodontics with a practice address in Oklahoma City, Oklahoma, and NPI 1811999618, issued on Aug 11, 2005. Check the license (Oklahoma 4585, as entered in NPPES) with the Oklahoma board that licenses this profession; 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
1811999618
Name
Gregory S. Shanbour
Credential
D.D.S., M.S.
Primary taxonomy
Periodontics 1223P0300X
License number
4585 OK
Self-reported in NPPES; status is on the state search
Practice location
8117 S Walker Ave, Oklahoma City, OK 73139
Phone
(405) 634-2239
Enumerated
Aug 11, 2005
Record last updated
Jul 13, 2026
Fax
(405) 634-3598
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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Verify Gregory S. Shanbour in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
    Search for license 4585
    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
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33% fewer Medicare Part D claims than the average periodontics in 2024

186 Medicare Part D claims for 50 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. 20 claims were for opioids.

  1. Gregory Shanbour186
  2. Specialty average277

Most prescribed

  1. Chlorhexidine Gluconate36 claims
  2. Cefadroxil27 claims
  3. Alprazolam20 claims
  4. Methylprednisolone15 claims
  5. Amoxicillin13 claims
  6. Hydrocodone-Acetaminophen13 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.

Gregory S. Shanbour among 52 periodontics records in Oklahoma

Gregory S. Shanbour, D.D.S., M.S. is one of 52 periodontics records with a practice address in Oklahoma. 50% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 96% newer
  • In a Medicare fileYes · 50% of these records are
  • In the CMS Doctors and Clinicians fileNo · 2% of these records are
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Periodontics providers in Oklahoma

There are 52 periodontics records in Oklahoma.

The 8 periodontics records with the nearest ZIP codes

  1. Jacob Hager, D.D.S, M.S.Oklahoma City, OK 731391316153851
  2. Glen Hornbuckle, DDS MS FACDOkla City, OK 731391487711081
  3. James Womack, D.D.S.Oklahoma City, OK 731341285067033
  4. Mary NamyTinker Afb, OK 731451740743228
  5. Saiprasad Zemse, DDS PHDTinker Afb, OK 731451558678813
  6. Olanrewaju MeeksMidwest City, OK 731301538689070
  7. Hayden Fuller, DDSOklahoma City, OK 731201881180974
  8. Robin Henderson, DMDOkla City, OK 731201770627044

Common questions

What is Gregory S. Shanbour, D.D.S., M.S.'s NPI number?

Gregory S. Shanbour, D.D.S., M.S.'s National Provider Identifier (NPI) is 1811999618, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory S. Shanbour, D.D.S., M.S. located?

The NPPES record lists a practice address at 8117 S Walker Ave, Oklahoma City, OK, 73139. Phone: (405) 634-2239. Providers update this record themselves, so call before visiting.

How can I verify Gregory S. Shanbour, D.D.S., M.S.'s license?

NPPES lists Oklahoma license number 4585, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory S. Shanbour, D.D.S., M.S. prescribe under Medicare Part D?

In 2024, Gregory S. Shanbour, D.D.S., M.S. had 186 Medicare Part D claims for 50 beneficiaries; the average among periodontics prescribers was 277. 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.