Aaron Chiang, M.D.
Internal Medicine Physician · Los Angeles, CA
Aaron Chiang, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1184936379, issued on Jul 5, 2010. Check the license (California A118585, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aaron Chiang
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A118585 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2080 Century Park E Ste 1605, Los Angeles, CA 90067
- Phone
- (310) 620-1888
- Enumerated
- Jul 5, 2010
- Record last updated
- Nov 2, 2022
- Medicare enrollment
- Enrolled (PECOS I20130305000570); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Aaron Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118585Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,483 Medicare Part D claims for 228 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 55 claims were for opioids.
Most prescribed
- Atorvastatin Calcium175 claims
- Rosuvastatin Calcium147 claims
- Losartan Potassium141 claims
- Amlodipine Besylate129 claims
- Levothyroxine Sodium73 claims
- Synthroid54 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: $70.78
3 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.
Aaron Chiang among 17,696 internal medicine physician records in California
Aaron Chiang, 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 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2010 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 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
- Patricia Chang, M.D.Century City, CA 900671508886508
- Ali Enayati, M.D., M.P.H.Los Angeles, CA 900671043269194
- Jeremy Fine, MDLos Angeles, CA 900671225073190
- Eugene Fishman, M.D.Los Angeles, CA 900671780791830
- Steven Galen, M.D.Los Angeles, CA 900671396702320
- Elie Gindi, MDLos Angeles, CA 900671245289412
- Roya Golshani, M.D.Los Angeles, CA 900671033144522
- Teresa Merced, MDLos Angeles, CA 900671083645550
Common questions
What is Aaron Chiang, M.D.'s NPI number?
Aaron Chiang, M.D.'s National Provider Identifier (NPI) is 1184936379, issued on Jul 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Aaron Chiang, M.D. located?
The NPPES record lists a practice address at 2080 Century Park E Ste 1605, Los Angeles, CA, 90067. Phone: (310) 620-1888. Providers update this record themselves, so call before visiting.
How can I verify Aaron Chiang, M.D.'s license?
NPPES lists California license number A118585, 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 Aaron Chiang, M.D. prescribe under Medicare Part D?
In 2024, Aaron Chiang, M.D. had 2,483 Medicare Part D claims for 228 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.