Iling Chen, MD
Internal Medicine Physician · San Francisco, CA
Iling Chen, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1043350143, issued on Feb 7, 2007. Check the license (California A81112, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Iling Chen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A81112 CA
Self-reported in NPPES; status is on the state search - Practice location
- 375 Laguna Honda Blvd, San Francisco, CA 94116
- Phone
- (415) 759-4012
- Enumerated
- Feb 7, 2007
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (415) 759-4587
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 375 Laguna Honda Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Iling Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A81112Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,659 Medicare Part D claims for 1,019 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Cefadroxil173 claims
- Paxlovid171 claims
- Atorvastatin Calcium111 claims
- Azelastine Hcl86 claims
- Amoxicillin-Clavulanate Potass71 claims
- Doxycycline Monohydrate62 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.
Iling Chen among 17,696 internal medicine physician records in California
Iling Chen, 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 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 fileNo · 63% of these records are
- 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).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Lisa Hoo, MDSan Francisco, CA 941161487794053
- Derek Kerr, MDSan Francisco, CA 941161861531485
- Emily Kinebuchi, MDSan Francisco, CA 941161760494645
- Christina Lee, MDSan Francisco, CA 941161639213663
- Julio Pineda, MDSan Francisco, CA 941161295870053
- Hugh Rienhoff, MDSan Francisco, CA 941161174663157
Common questions
What is Iling Chen, MD's NPI number?
Iling Chen, MD's National Provider Identifier (NPI) is 1043350143, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Iling Chen, MD located?
The NPPES record lists a practice address at 375 Laguna Honda Blvd, San Francisco, CA, 94116. Phone: (415) 759-4012. Providers update this record themselves, so call before visiting.
How can I verify Iling Chen, MD's license?
NPPES lists California license number A81112, 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 Iling Chen, MD prescribe under Medicare Part D?
In 2024, Iling Chen, MD had 1,659 Medicare Part D claims for 1,019 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.