Diane Mai Thanh Ho, M.D.
Internal Medicine Physician · Los Angeles, CA
Diane Mai Thanh Ho, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1811182983, issued on Sep 11, 2007. Check the license (California A89573, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diane Mai Thanh Ho
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A89573 CA
Self-reported in NPPES; status is on the state search - Practice location
- 520 S Burnside Ave Apt 6H, Los Angeles, CA 90036
- Phone
- (323) 931-5737
- Enumerated
- Sep 11, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080424000788); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Diane Mai Thanh Ho in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A89573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
7,826 Medicare Part D claims for 594 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 604 claims were for opioids.
Most prescribed
- Atorvastatin Calcium648 claims
- Losartan Potassium351 claims
- Levothyroxine Sodium337 claims
- Hydrocodone-Acetaminophen328 claims
- Amlodipine Besylate311 claims
- Rosuvastatin Calcium263 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane Mai Thanh Ho among 17,696 internal medicine physician records in California
Diane Mai Thanh Ho, 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 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 fileYes · 63% of these records are
- Graduated2003 · median 2004 among the 11,065 with a school on file
- 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).
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
- Andrew Chuang, M.D.Los Angeles, CA 900361528070166
- Damon Forbes, M.D.Los Angeles, CA 900361932335452
- George Fouladian, M.D.Los Angeles, CA 900361932204161
- Thomas Hascall, MDLos Angeles, CA 900361245315324
- Wayne Ho, M.D.Los Angeles, CA 900361477731867
- Habibollah Karimi-Taleghani, M.D.Los Angeles, CA 900361083867352
- Matthew Lederman, M.D.Los Angeles, CA 900361437245396
- Phillip Musikanth, MDLos Angeles, CA 900361760495741
Common questions
What is Diane Mai Thanh Ho, M.D.'s NPI number?
Diane Mai Thanh Ho, M.D.'s National Provider Identifier (NPI) is 1811182983, issued on Sep 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Diane Mai Thanh Ho, M.D. located?
The NPPES record lists a practice address at 520 S Burnside Ave Apt 6H, Los Angeles, CA, 90036. Phone: (323) 931-5737. Providers update this record themselves, so call before visiting.
How can I verify Diane Mai Thanh Ho, M.D.'s license?
NPPES lists California license number A89573, 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 Diane Mai Thanh Ho, M.D. prescribe under Medicare Part D?
In 2024, Diane Mai Thanh Ho, M.D. had 7,826 Medicare Part D claims for 594 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.