NPPES file of Aug 9, 2026

John H. Samson, M.D.

Specialist · Long Beach, CA

John H. Samson, M.D. is a specialist with a practice address in Long Beach, California, and NPI 1114073053, issued on Jan 25, 2007. Check the license (California C24403, as entered in NPPES) with the California board that licenses this profession; 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
1114073053
Name
John H. Samson
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
C24403 CA
Self-reported in NPPES; status is on the state search
Practice location
2921 Redondo Ave, Long Beach, CA 90806
Phone
(562) 426-5551
Enumerated
Jan 25, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(562) 426-9977
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 2921 Redondo Ave

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

  1. Shanna Cox, M.D.Specialist1295881167
  2. Lori Livingston, M.D.Specialist1356558191
  3. Louis Theriot, M.D.Specialist1245386358
  4. Peter Welty, M.D.Specialist1356497226

Verify John H. Samson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license C24403
    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
Find 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.

96% fewer Medicare Part D claims than the average specialist in 2024

49 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. John Samson49
  2. Specialty average1,380

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.

John H. Samson among 5,749 specialist records in California

John H. Samson, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 44% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 19% of these records are
  • Record last updated2007 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Anthony Ciarolla, M.D.Long Beach, CA 908061922068881
  2. Cynthia Forsthoff, M.D.Long Beach, CA 908061841250719
  3. Douglas Garland, M.D.Long Beach, CA 908061508845264
  4. Douglas Jackson, M.D.Long Beach, CA 908061386624484
  5. Seth Kogan, M.D.Long Beach, CA 908061780652040
  6. Peter Kurzweil, M.D.Long Beach, CA 908061700865466
  7. William Lyons, M.D.Long Beach, CA 908061639139595
  8. David Morrison, M.D.Long Beach, CA 908061326027947

Common questions

What is John H. Samson, M.D.'s NPI number?

John H. Samson, M.D.'s National Provider Identifier (NPI) is 1114073053, issued on Jan 25, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John H. Samson, M.D. located?

The NPPES record lists a practice address at 2921 Redondo Ave, Long Beach, CA, 90806. Phone: (562) 426-5551. Providers update this record themselves, so call before visiting.

How can I verify John H. Samson, M.D.'s license?

NPPES lists California license number C24403, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John H. Samson, M.D. prescribe under Medicare Part D?

In 2024, John H. Samson, M.D. had 49 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.