John Zweifler
Family Medicine Physician · Fresno, CA
John Zweifler is a family medicine physician with a practice address in Fresno, California, and NPI 1962510420, issued on Aug 26, 2006. Check the license (California G58360, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Zweifler
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G58360 CA
Self-reported in NPPES; status is on the state search - Practice location
- 290 N Wayte LN, Fresno, CA 93701
- Phone
- (866) 342-6012
- Enumerated
- Aug 26, 2006
- Record last updated
- Jan 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00G583600 CA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 290 N Wayte LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robyn Agnew, CNM, NPAdvanced Practice Midwife1114991825
- Emily BahneNurse Practitioner1285062505
- Maila Baker, M.D.Pediatrics Physician1609167576
- Faye Bates, CNMAdvanced Practice Midwife1851669782
- Jaimie BrandleyPediatrics Physician1215315213
- Melinda Bush, RD, CNSCPediatric Nutrition Registered Dietitian1073968137
Verify John Zweifler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G58360Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family medicine physician in 2024
257 Medicare Part D claims for 55 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Buprenorphine-Naloxone45 claims
- Mirtazapine28 claims
- Atorvastatin Calcium23 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $96.81
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 55,478 providers of this specialty with any payment received $902.55 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 Zweifler among 17,133 family medicine physician records in California
John Zweifler 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. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2021 · 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).
237 family medicine physician records list a practice address in Fresno
They are 237 of the 19,440 NPPES records with a practice address in Fresno, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Fresno → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jennifer Balguma, M.D.Fresno, CA 937011548412315
- Erica Delsman, M.D.Fresno, CA 937011750657177
- Ronald Dominguez, M.D.Fresno, CA 937011417257452
- Mileidys Gomez-Gonzalez, MDFresno, CA 937011376703033
- Oscar Hernandez Sandoval, MDFresno, CA 937011922390764
- Tewodros Kidane, MD, MSCFresno, CA 937011134457161
- Conall McCabeFresno, CA 937011790893329
- Neelu Mehra, MDFresno, CA 937011487872313
Common questions
What is John Zweifler's NPI number?
John Zweifler's National Provider Identifier (NPI) is 1962510420, issued on Aug 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Zweifler located?
The NPPES record lists a practice address at 290 N Wayte LN, Fresno, CA, 93701. Phone: (866) 342-6012. Providers update this record themselves, so call before visiting.
How can I verify John Zweifler's license?
NPPES lists California license number G58360, 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.
How much does John Zweifler prescribe under Medicare Part D?
In 2024, John Zweifler had 257 Medicare Part D claims for 55 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.