Eric Richard Kwok, M.D.
Internal Medicine Physician · San Francisco, CA
Eric Richard Kwok, M.D. is an internal medicine physician with a practice address in San Francisco, California, and NPI 1447231618, issued on Nov 7, 2005. Check the license (California A24444, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Eric Richard Kwok
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A24444 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3838 California St, San Francisco, CA 94118
- Phone
- (415) 387-1534
- Enumerated
- Nov 7, 2005
- Record last updated
- Jul 7, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (415) 387-8750
- Medicaid ID
- 00A244440 CA
- Entity
- Type 1 · individual
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Verify Eric Richard Kwok in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A24444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Eric Richard Kwok among 17,696 internal medicine physician records in California
Eric Richard Kwok, 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 not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2010 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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
- Nikola Bukurov, M.D.San Francisco, CA 941181861423279
- Lee Tat Chan, M.D.San Francisco, CA 941181992728414
- Randolph Chase, M.D.San Francisco, CA 941181063428225
- Catherine Collins, M.D.San Francisco, CA 941181346265790
- Robert Dobrow, MDSan Francisco, CA 941181356336051
- Joyce Hansen, M.D.San Francisco, CA 941181639190085
- Karen Khoo, MDSan Francisco, CA 941181629031430
- Stephen Lee, M.D.San Francisco, CA 941181053327288
Common questions
What is Eric Richard Kwok, M.D.'s NPI number?
Eric Richard Kwok, M.D.'s National Provider Identifier (NPI) is 1447231618, issued on Nov 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Eric Richard Kwok, M.D. located?
The NPPES record lists a practice address at 3838 California St, San Francisco, CA, 94118. Phone: (415) 387-1534. Providers update this record themselves, so call before visiting.
How can I verify Eric Richard Kwok, M.D.'s license?
NPPES lists California license number A24444, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.