Thein Oo, MD
Internal Medicine Physician · Victorville, CA
Thein Oo, MD is an internal medicine physician with a practice address in Victorville, California, and NPI 1467404897, issued on May 16, 2006. Check the license (California A92864, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thein Oo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A92864 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16850 Bear Valley RD, Victorville, CA 92395
- Phone
- (760) 241-8000
- Enumerated
- May 16, 2006
- Record last updated
- Nov 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A928640 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 16850 Bear Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Charbel Aoun, MDInternal Medicine Physician1023121217
- Mehwish Aslam, M.D;Pediatrics Physician1366721722
Verify Thein Oo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A92864Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
201 Medicare Part D claims for 122 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Lisinopril11 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.
Thein Oo among 17,696 internal medicine physician records in California
Thein Oo, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 internal medicine physician records list a practice address in Victorville
They are 41 of the 2,584 NPPES records with a practice address in Victorville, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Victorville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michio Abe, MDVictorville, CA 923951285669671
- Zoheir El-Hajjaoui, M.D.Victorville, CA 923951831199058
- Nigar Enayat, M.D.Victorville, CA 923951407821887
- Abdul Enayat, M.D.Victorville, CA 923951255372181
- Trang Lam, MDVictorville, CA 923951891718565
- Roger Moushabek, M.D.Victorville, CA 923951073541157
- Sonia Panjwani, M.D.Victorville, CA 923951316978075
- Venkamma Reddy, MDVictorville, CA 923951124077698
Common questions
What is Thein Oo, MD's NPI number?
Thein Oo, MD's National Provider Identifier (NPI) is 1467404897, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thein Oo, MD located?
The NPPES record lists a practice address at 16850 Bear Valley RD, Victorville, CA, 92395. Phone: (760) 241-8000. Providers update this record themselves, so call before visiting.
How can I verify Thein Oo, MD's license?
NPPES lists California license number A92864, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thein Oo, MD prescribe under Medicare Part D?
In 2024, Thein Oo, MD had 201 Medicare Part D claims for 122 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.