NPPES file of Aug 9, 2026

Jason Hwang, M.D.

Internal Medicine Physician · Sunnyvale, CA

Jason Hwang, M.D. is an internal medicine physician with a practice address in Sunnyvale, California, and NPI 1669490926, issued on Jul 17, 2006. Check the license (California A73310, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669490926
Name
Jason Hwang
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
A73310 CA
074485 GA
220304 MA
4301104580 MI
274755 NY
and 2 more
Self-reported in NPPES; status is on the state search
Practice location
412 Flora Vista Ave, Sunnyvale, CA 94086
Phone
(408) 940-6001
Enumerated
Jul 17, 2006
Record last updated
May 22, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(888) 768-6089
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Jason Hwang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A73310
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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48 internal medicine physician records list a practice address in Sunnyvale

They are 48 of the 1,690 NPPES records with a practice address in Sunnyvale, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Jason Hwang, M.D.'s NPI number?

Jason Hwang, M.D.'s National Provider Identifier (NPI) is 1669490926, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jason Hwang, M.D. located?

The NPPES record lists a practice address at 412 Flora Vista Ave, Sunnyvale, CA, 94086. Phone: (408) 940-6001. Providers update this record themselves, so call before visiting.

How can I verify Jason Hwang, M.D.'s license?

NPPES lists California license number A73310, 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.