John Bylsma, MD
Family Medicine Physician · Stockton, CA
John Bylsma, MD is a family medicine physician with a practice address in Stockton, California, and NPI 1972569416, issued on Apr 24, 2006. Check the license (California G32207, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Bylsma
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G32207 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2505 W Hammer LN, Stockton, CA 95209
- Phone
- (209) 957-7050
- Enumerated
- Apr 24, 2006
- Record last updated
- Jan 8, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid ID
- 00G322070 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2505 W Hammer LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Bylsma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G32207Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Bylsma among 17,133 family medicine physician records in California
John Bylsma, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2009 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
116 family medicine physician records list a practice address in Stockton
They are 116 of the 9,522 NPPES records with a practice address in Stockton, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,133 in California → Every provider in Stockton → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Syed Ali, MDStockton, CA 952091548349038
- William Beck, M.D.Stockton, CA 952091043248982
- Nicholas Birlew, D.O.Stockton, CA 952091821188483
- Daniel Cooper, DOStockton, CA 952091790770022
- Carlos Delgado, D.O.Stockton, CA 952091659494946
- Steven Nelson, MDStockton, CA 952091558327908
- James Ngo, D.O.Stockton, CA 952091699954271
- Trieu Pham, M.D.Stockton, CA 952091881836419
Common questions
What is John Bylsma, MD's NPI number?
John Bylsma, MD's National Provider Identifier (NPI) is 1972569416, issued on Apr 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Bylsma, MD located?
The NPPES record lists a practice address at 2505 W Hammer LN, Stockton, CA, 95209. Phone: (209) 957-7050. Providers update this record themselves, so call before visiting.
How can I verify John Bylsma, MD's license?
NPPES lists California license number G32207, 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.