NPPES file of Aug 9, 2026

John S. Seder, MD

Nuclear Medicine Physician · Ventura, CA

John S. Seder, MD is a nuclear medicine physician with a practice address in Ventura, California, and NPI 1679506018, issued on Jul 9, 2006. Check the license (California G29912, 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
1679506018
Name
John S. Seder
Credential
MD
Primary taxonomy
Nuclear Medicine Physician 207U00000X
License number
G29912 CA
Self-reported in NPPES; status is on the state search
Practice location
147 N Brent St, Ventura, CA 93003
Phone
(805) 682-7744
Enumerated
Jul 9, 2006
Record last updated
Mar 7, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(805) 682-3321
Medicaid IDs
1679506018 CA
00G299121 CA
005299121 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 147 N Brent St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jessica Adkins, M.D.Internal Medicine Physician1194968362
  2. Niaz AhankoobStudent in an Organized Health Care Education/Training Program1568103133
  3. Samira Ahrari, MDStudent in an Organized Health Care Education/Training Program1396680039
  4. Ralph Akl, DOFamily Medicine Physician1962071654
  5. Abdul Latif Al-Kassir, DOStudent in an Organized Health Care Education/Training Program1437909835
  6. Adnan Albrejawi Alhomsi, MDStudent in an Organized Health Care Education/Training Program1144023003

Verify John S. Seder in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G29912
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $13.53

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 172 providers of this specialty with any payment received $4,384.46 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Seder$13.53
  2. Specialty average$4,384.46

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

John S. Seder among 150 nuclear medicine physician records in California

John S. Seder, MD is one of 150 nuclear medicine physician records with a practice address in California. 59% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 42% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileNo · 48% of these records are
  • Record last updated2013 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207U00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nuclear Medicine Physician providers in California

There are 150 nuclear medicine physician records in California.

The 8 nuclear medicine physician records with the nearest ZIP codes

  1. John Stauffer, MDVentura, CA 930031639391048
  2. William Pace, MDCamarillo, CA 930101326096785
  3. David Carlson, M.D.Santa Barbara, CA 931051902133465
  4. Daniel Rimkus, M.D.Santa Barbara, CA 931051447343256
  5. Mahbod Jafarvand Giglou, MDOrange, CA 928681164044640
  6. Tushar Patel, M.D.Fountain Valley, CA 927081093884538
  7. Harinder Brar, MDBakersfield, CA 933091659656668
  8. William Holtz, M.D.Newport Beach, CA 926601700988268

Common questions

What is John S. Seder, MD's NPI number?

John S. Seder, MD's National Provider Identifier (NPI) is 1679506018, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John S. Seder, MD located?

The NPPES record lists a practice address at 147 N Brent St, Ventura, CA, 93003. Phone: (805) 682-7744. Providers update this record themselves, so call before visiting.

How can I verify John S. Seder, MD's license?

NPPES lists California license number G29912, 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.