Diana H. Thien, D.D.S.
Dentist · Oklahoma City, OK
Diana H. Thien, D.D.S. is a dentist with a practice address in Oklahoma City, Oklahoma, and NPI 1588969901, issued on Jan 14, 2011. Check the license (Oklahoma 6324, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana H. Thien
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License numbers
- 6324 OK
6254 LA
Self-reported in NPPES; status is on the state search - Practice location
- 47 NE 23RD St, Oklahoma City, OK 73105
- Phone
- (405) 525-1222
- Enumerated
- Jan 14, 2011
- Record last updated
- Mar 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,058 in Oklahoma → Look up another NPI →
Also registered at 47 NE 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kellie Ferrari, DDSDentist1568862514
- Arpit Singh, DDSDentist1760041719
Verify Diana H. Thien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 6324Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average dentist in 2024
14 Medicare Part D claims, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
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.
Diana H. Thien among 1,058 dentist records in Oklahoma
Diana H. Thien, D.D.S. is one of 1,058 dentist records with a practice address in Oklahoma. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 46% of them.
- NPI issued2011 · 46% of these records are older, 51% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2020 · 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 122300000X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
249 dentist records list a practice address in Oklahoma City
They are 249 of the 22,359 NPPES records with a practice address in Oklahoma City, and 1,058 dentist records in Oklahoma.
All 1,058 in Oklahoma → Every provider in Oklahoma City → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Krishna ChevliOklahoma City, OK 731051255063137
- Dunn Cumby, D.D.S.Oklahoma City, OK 731051942357041
- Kellie Ferrari, DDSOklahoma City, OK 731051568862514
- Timothy Kinnard, D.D.S.Oklahoma City, OK 731051861549354
- Melinda KnightOklahoma City, OK 731051134526247
- Arpit Singh, DDSOklahoma City, OK 731051760041719
- Arya Bahreini, DDSOklahoma City, OK 731041427780386
- Katie Besson, DMDOklahoma City, OK 731041174412852
Common questions
What is Diana H. Thien, D.D.S.'s NPI number?
Diana H. Thien, D.D.S.'s National Provider Identifier (NPI) is 1588969901, issued on Jan 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Diana H. Thien, D.D.S. located?
The NPPES record lists a practice address at 47 NE 23RD St, Oklahoma City, OK, 73105. Phone: (405) 525-1222. Providers update this record themselves, so call before visiting.
How can I verify Diana H. Thien, D.D.S.'s license?
NPPES lists Oklahoma license number 6324, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does Diana H. Thien, D.D.S. prescribe under Medicare Part D?
In 2024, Diana H. Thien, D.D.S. had 14 Medicare Part D claims; the average among dentist prescribers was 86. 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.