John Julius Willsen, M.D.
Procedural Dermatology Physician · Turlock, CA
John Julius Willsen, M.D. is a procedural dermatology physician with a practice address in Turlock, California, and NPI 1053497347, issued on Oct 29, 2006. Check the license (California G36877, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Julius Willsen
- Credential
- M.D.
- Primary taxonomy
- Procedural Dermatology Physician 207NS0135X
- License number
- G36877 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1199 Delbon Ave, Turlock, CA 95382
- Phone
- (209) 668-3063
- Enumerated
- Oct 29, 2006
- Record last updated
- Feb 11, 2022
- Fax
- (209) 668-4992
- Entity
- Type 1 · individual
8 nearest procedural dermatology physician records → All 120 in California → Look up another NPI →
Also registered at 1199 Delbon Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alexander Evens, D.O.Infectious Disease Physician1114144649
- Robert Hileman, R.P.T.Specialist1316934375
Verify John Julius Willsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G36877Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $25.13
1 payment: food and beverage; the largest payer was Abiomed. The 377 providers of this specialty with any payment received $10,439.11 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Julius Willsen among 120 procedural dermatology physician records in California
John Julius Willsen, M.D. is one of 120 procedural dermatology physician records with a practice address in California. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 40% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2022 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207NS0135X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Procedural Dermatology Physician providers in California
There are 120 procedural dermatology physician records in California.
All 120 in California → Every provider in Turlock → Procedural Dermatology Physician nationwide →
The 8 procedural dermatology physician records with the nearest ZIP codes
- Jennifer Hayes, MDSanta Rosa, CA 954031649599648
- Marek Lorenc, MDSanta Rosa, CA 954031992813588
- Daniel Trozak, M.D.Modesto, CA 953501164427944
- Purita Villanueva, MDModesto, CA 953501164503496
- Geetinder Chattha, M.D.Sebastopol, CA 954721407980881
- Lamont Hornbeck, M.D.Roseville, CA 956611871522664
- Martin Miller, M.D.Los Gatos, CA 950321215005327
- David Harris, M.D.Campbell, CA 950081174697619
Common questions
What is John Julius Willsen, M.D.'s NPI number?
John Julius Willsen, M.D.'s National Provider Identifier (NPI) is 1053497347, issued on Oct 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Julius Willsen, M.D. located?
The NPPES record lists a practice address at 1199 Delbon Ave, Turlock, CA, 95382. Phone: (209) 668-3063. Providers update this record themselves, so call before visiting.
How can I verify John Julius Willsen, M.D.'s license?
NPPES lists California license number G36877, 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. 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.