Robert Nathan Gilliam, D.M.D.
Endodontics · Ft Sill, OK
Robert Nathan Gilliam, D.M.D. is an endodontics with a practice address in Ft Sill, Oklahoma, and NPI 1710090865, issued on Aug 15, 2006. Check the license with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert Nathan Gilliam
- Credential
- D.M.D.
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- DE00010597 WA
Self-reported in NPPES; status is on the state search - Practice location
- 652 Hamilton RD, Ft Sill, OK 73503
- Phone
- (580) 442-3905
- Enumerated
- Aug 15, 2006
- Record last updated
- Jul 27, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (580) 442-4002
- Entity
- Type 1 · individual
Verify Robert Nathan Gilliam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average endodontics in 2024
48 Medicare Part D claims for 30 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin16 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.
1 endodontics records list a practice address in Ft Sill
They are 1 of the 47 NPPES records with a practice address in Ft Sill, and 43 endodontics records in Oklahoma.
Other endodontics records in Oklahoma
- Ronald Anderson, D.D.S., M.S.Tulsa, OK1649287442
- Robert Augsburger, DDS,MSTulsa, OK1609984525
- William Beasley, DDSOklahoma City, OK1982616256
- Fred Benenati, D.D.S.Oklahoma City, OK1841413218
- Kenneth Bezan, DMDTulsa, OK1598707895
- John Biggs, DDSNorman, OK1598864175
- Stephen Biggs, DDSOklahoma City, OK1396901567
- Ahren Blake, DDSFort Sill, OK1619585833
- Percy Bolen, DDSNorman, OK1548369135
- Sam Campbell, DDSTahlequah, OK1275190688
Common questions
What is Robert Nathan Gilliam, D.M.D.'s NPI number?
Robert Nathan Gilliam, D.M.D.'s National Provider Identifier (NPI) is 1710090865, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Nathan Gilliam, D.M.D. located?
The NPPES record lists a practice address at 652 Hamilton RD, Ft Sill, OK, 73503. Phone: (580) 442-3905. Providers update this record themselves, so call before visiting.
How can I verify Robert Nathan Gilliam, D.M.D.'s license?
Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Robert Nathan Gilliam, D.M.D. prescribe under Medicare Part D?
In 2024, Robert Nathan Gilliam, D.M.D. had 48 Medicare Part D claims for 30 beneficiaries; the average among endodontics prescribers was 121. 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.