Dorothy Hong Do-Williams, M.D.
Internal Medicine Physician · Stockton, CA
Dorothy Hong Do-Williams, M.D. is an internal medicine physician with a practice address in Stockton, California, and NPI 1215237631, issued on Nov 1, 2010. Check the license (California A114424, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Dorothy Hong Do-Williams
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A114424 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1800 N California St, Stockton, CA 95204
- Phone
- (209) 943-2000
- Enumerated
- Nov 1, 2010
- Record last updated
- Jun 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
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Verify Dorothy Hong Do-Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A114424Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Dorothy Hong Do-Williams among 17,696 internal medicine physician records in California
Dorothy Hong Do-Williams, 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 2010, is newer than 63% of them.
- NPI issued2010 · 63% of these records are older, 34% newer
- In a Medicare fileNo · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2016 · 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).
89 internal medicine physician records list a practice address in Stockton
They are 89 of the 9,522 NPPES records with a practice address in Stockton, 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 Stockton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tanveer Bajwa, M.D.Stockton, CA 952041871871681
- Cecelia Blawie, MDStockton, CA 952041245261742
- Richard Camacho, MDStockton, CA 952041649253881
- Nivedita Doshi, M.D.Stockton, CA 952041417301987
- Aziz Kamali, M.D.Stockton, CA 952041306923883
- Mrinmayee Naik, M.D.Stockton, CA 952041639559081
- Sundar Natarajan, M.D.Stockton, CA 952041588794085
- Vincent Pennisi, MDStockton, CA 952041306375662
Common questions
What is Dorothy Hong Do-Williams, M.D.'s NPI number?
Dorothy Hong Do-Williams, M.D.'s National Provider Identifier (NPI) is 1215237631, issued on Nov 1, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Dorothy Hong Do-Williams, M.D. located?
The NPPES record lists a practice address at 1800 N California St, Stockton, CA, 95204. Phone: (209) 943-2000. Providers update this record themselves, so call before visiting.
How can I verify Dorothy Hong Do-Williams, M.D.'s license?
NPPES lists California license number A114424, 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.