George Wee Keng Ma, M.D.
Internal Medicine Physician · Los Angeles, CA
George Wee Keng Ma, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1528178332, issued on Aug 30, 2006. Check the license (California G23017, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- George Wee Keng Ma
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G23017 CA
Self-reported in NPPES; status is on the state search - Practice location
- 711 W College St, Los Angeles, CA 90012
- Phone
- (213) 621-2998
- Enumerated
- Aug 30, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (213) 621-2158
- Medicare enrollment
- Enrolled (PECOS I20110518000442); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1971
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 711 W College St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Brelian, M.D.Internal Medicine Physician1700032497
- Osmund Chan, M.D.Otolaryngology Physician1346385663
- Yoo Jung ChangMarriage & Family Therapist1518737683
- Rosa Choy, MDNeurology Physician1366458234
- Christopher Chu, MDCardiovascular Disease Physician1326205873
- Jan Duncan, MDOrthopaedic Surgery of the Spine Physician1821109083
Verify George Wee Keng Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G23017Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average internal medicine physician in 2024
4,435 Medicare Part D claims for 224 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 26 claims were for opioids.
Most prescribed
- Atorvastatin Calcium365 claims
- Amlodipine Besylate289 claims
- Metformin Hcl201 claims
- Losartan Potassium168 claims
- Jardiance156 claims
- Hydrochlorothiazide123 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.
George Wee Keng Ma among 17,696 internal medicine physician records in California
George Wee Keng Ma, M.D. 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 fileYes · 63% of these records are
- Graduated1971 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 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).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paul Chu, M.D.Los Angeles, CA 900121619052628
- Ting-Lin Kao, M.D.Los Angeles, CA 900121508881137
- Youjong Ko, MDLos Angeles, CA 900121508934027
- Sandra Lee, M.D.Los Angeles, CA 900121457379786
- Meera Modi, M.D.Los Angeles, CA 900121023024916
- Chung Ng, M.D.Los Angeles, CA 900121285708651
- Huan Nguyen, M.D.Los Angeles, CA 900121841224474
- Elias Paikal, MDLos Angeles, CA 900121578594776
Common questions
What is George Wee Keng Ma, M.D.'s NPI number?
George Wee Keng Ma, M.D.'s National Provider Identifier (NPI) is 1528178332, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George Wee Keng Ma, M.D. located?
The NPPES record lists a practice address at 711 W College St, Los Angeles, CA, 90012. Phone: (213) 621-2998. Providers update this record themselves, so call before visiting.
How can I verify George Wee Keng Ma, M.D.'s license?
NPPES lists California license number G23017, 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 George Wee Keng Ma, M.D. prescribe under Medicare Part D?
In 2024, George Wee Keng Ma, M.D. had 4,435 Medicare Part D claims for 224 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.