Larry C. Chiang, MD
Internal Medicine Physician · Escandido, CA
Larry C. Chiang, MD is an internal medicine physician with a practice address in Escandido, California, and NPI 1912952524, issued on May 23, 2006. Check the license (California A064424, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Larry C. Chiang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A064424 CA
Self-reported in NPPES; status is on the state search - Practice location
- 215 S Hickory St, Escandido, CA 92025
- Phone
- (760) 432-6644
- Enumerated
- May 23, 2006
- Record last updated
- Nov 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (760) 739-8213
- Medicare enrollment
- Enrolled (PECOS I20060131000762); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Larry C. Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A064424Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,811 Medicare Part D claims for 276 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 45 claims were for opioids.
Most prescribed
- Amlodipine Besylate211 claims
- Simvastatin199 claims
- Atorvastatin Calcium172 claims
- Metformin Hcl146 claims
- Levothyroxine Sodium140 claims
- Lisinopril134 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
- Escondido Internal Medicine IncEscondido, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Larry C. Chiang among 17,696 internal medicine physician records in California
Larry C. Chiang, 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 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
- Graduated1996 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 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).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rachel Bacon, M.DEscondido, CA 920251215963905
- Margaret Chen, M.DEscondido, CA 920251659305084
- Mark Haberman, M.D.Escondido, CA 920251497780563
- Karin Kordas, M.D.Escondido, CA 920251043236292
- Lara Le, MDEscondido, CA 920251043239841
- Emmet Lee, M.D.Escondido, CA 920251558326801
- Richard Mallo, MDEscondido, CA 920251588699490
- Brian Meyerhoff, M.D.Escondido, CA 920251467417717
Common questions
What is Larry C. Chiang, MD's NPI number?
Larry C. Chiang, MD's National Provider Identifier (NPI) is 1912952524, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Larry C. Chiang, MD located?
The NPPES record lists a practice address at 215 S Hickory St, Escandido, CA, 92025. Phone: (760) 432-6644. Providers update this record themselves, so call before visiting.
How can I verify Larry C. Chiang, MD's license?
NPPES lists California license number A064424, 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 Larry C. Chiang, MD prescribe under Medicare Part D?
In 2024, Larry C. Chiang, MD had 2,811 Medicare Part D claims for 276 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.