NPPES file of Aug 9, 2026

John Arthur Swanson, MD

Obstetrics & Gynecology Physician · Clovis, CA

John Arthur Swanson, MD is an obstetrics & gynecology physician with a practice address in Clovis, California, and NPI 1255433025, issued on Sep 2, 2006. Check the license (California C341450, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255433025
Name
John Arthur Swanson
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
C341450 CA
Self-reported in NPPES; status is on the state search
Practice location
1187 N Willow Ave Ste 103, Clovis, CA 93611
Phone
(559) 285-9344
Enumerated
Sep 2, 2006
Record last updated
May 6, 2024
Fax
(559) 897-8792
Medicare enrollment
Enrolled (PECOS I20100923000334); may accept Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 1969
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify John Arthur Swanson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C341450
    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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67% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

55 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. John Swanson55
  2. Specialty average165

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: $28,000.00

7 payments; by number, the most common kind was compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was Intuitive Surgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Swanson$28,000
  2. Specialty average$1,031

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

John Arthur Swanson among 5,088 obstetrics & gynecology physician records in California

John Arthur Swanson, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1969 · median 2004 among the 2,700 with a school on file
  • Record last updated2024 · 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 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Zhiyuh Chang, MDClovis, CA 936111134207046
  2. Dan Dorough, MDClovis, CA 936111417011289
  3. David Dorough, MDClovis, CA 936111144384918
  4. Roderick Harris, MDClovis, CA 936111780646018
  5. Asawari Khadye, MDClovis, CA 936111427122746
  6. Seung Nam Kim, M.D.Clovis, CA 936111134112154
  7. Lorenzo Lopez, MDClovis, CA 936111578566246
  8. Jill Mason, MDClovis, CA 936111033297841

Common questions

What is John Arthur Swanson, MD's NPI number?

John Arthur Swanson, MD's National Provider Identifier (NPI) is 1255433025, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Arthur Swanson, MD located?

The NPPES record lists a practice address at 1187 N Willow Ave Ste 103, Clovis, CA, 93611. Phone: (559) 285-9344. Providers update this record themselves, so call before visiting.

How can I verify John Arthur Swanson, MD's license?

NPPES lists California license number C341450, 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 Arthur Swanson, MD prescribe under Medicare Part D?

In 2024, John Arthur Swanson, MD had 55 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.