Maggie Youngha Ham, M.D.
Internal Medicine Physician · Los Angeles, CA
Maggie Youngha Ham, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1356581862, issued on Feb 23, 2009. Check the license (California A106367, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Maggie Youngha Ham
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A106367 CA
247563 MA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Medical Plz, Los Angeles, CA 90095
- Phone
- (310) 301-8707
- Enumerated
- Feb 23, 2009
- Record last updated
- Jul 13, 2023
- Fax
- (310) 301-8751
- Medicaid ID
- 9772685 MA
- Medicare enrollment
- Enrolled (PECOS I20140906000019); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 200 Medical Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maggie Youngha Ham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106367Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,841 Medicare Part D claims for 354 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 28 claims were for opioids.
Most prescribed
- Pantoprazole Sodium760 claims
- Lubiprostone133 claims
- Omeprazole113 claims
- Motegrity89 claims
- Ondansetron Odt75 claims
- Gavilyte-C48 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.
Industry payments in 2024: $114.32
1 payment: food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maggie Youngha Ham among 17,696 internal medicine physician records in California
Maggie Youngha Ham, 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 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2007 · median 2004 among the 11,065 with a school on file
- Record last updated2023 · 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 →
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Common questions
What is Maggie Youngha Ham, M.D.'s NPI number?
Maggie Youngha Ham, M.D.'s National Provider Identifier (NPI) is 1356581862, issued on Feb 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Maggie Youngha Ham, M.D. located?
The NPPES record lists a practice address at 200 Medical Plz, Los Angeles, CA, 90095. Phone: (310) 301-8707. Providers update this record themselves, so call before visiting.
How can I verify Maggie Youngha Ham, M.D.'s license?
NPPES lists California license number A106367, 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 Maggie Youngha Ham, M.D. prescribe under Medicare Part D?
In 2024, Maggie Youngha Ham, M.D. had 1,841 Medicare Part D claims for 354 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.