Charlene Oh, MD
Internal Medicine Physician · Sylmar, CA
Charlene Oh, MD is an internal medicine physician with a practice address in Sylmar, California, and NPI 1326240003, issued on Jun 4, 2007. Check the license (California A109765, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Charlene Oh
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A109765 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14445 Olive View Dr, Sylmar, CA 91342
- Phone
- (818) 364-3205
- Enumerated
- Jun 4, 2007
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (818) 364-4573
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 14445 Olive View Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nasser Abdo, MDInternal Medicine Physician1306911649
- Gezman Abdullahi, M.D.Internal Medicine Physician1225394380
- Moyosore Abere, NPNurse Practitioner1225667314
- Ammini Abraham, MDAnesthesiology Physician1467531541
- Margarita Acosta, RN, AGACNPAcute Care Nurse Practitioner1609202415
- Fredric Adler, MDInternal Medicine Physician1356376735
Verify Charlene Oh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A109765Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
103 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril14 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.
Charlene Oh among 17,696 internal medicine physician records in California
Charlene Oh, 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% 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).
102 internal medicine physician records list a practice address in Sylmar
They are 102 of the 1,454 NPPES records with a practice address in Sylmar, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Sylmar → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Fredric Adler, MDSylmar, CA 913421356376735
- Janet Au, MDSylmar, CA 913421932126570
- Peter Balingit, MDSylmar, CA 913421114952264
- Andrea Cooperman, MDSylmar, CA 913421326134560
- Basem Fanous, MDSylmar, CA 913421619072600
- Emil Heinze, MDSylmar, CA 913421720175052
- Miles Jakl, M.D.Sylmar, CA 913421992738306
- Luis Lovato, M.D.Sylmar, CA 913421407945678
Common questions
What is Charlene Oh, MD's NPI number?
Charlene Oh, MD's National Provider Identifier (NPI) is 1326240003, issued on Jun 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Charlene Oh, MD located?
The NPPES record lists a practice address at 14445 Olive View Dr, Sylmar, CA, 91342. Phone: (818) 364-3205. Providers update this record themselves, so call before visiting.
How can I verify Charlene Oh, MD's license?
NPPES lists California license number A109765, 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 Charlene Oh, MD prescribe under Medicare Part D?
In 2024, Charlene Oh, MD had 103 Medicare Part D claims for 54 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.