NPPES file of Aug 9, 2026

Jamison Ryan Thompson, D.O.

Family Medicine Physician · Cypress, CA

Jamison Ryan Thompson, D.O. is a family medicine physician with a practice address in Cypress, California, and NPI 1043517410, issued on Feb 22, 2011. Check the license (California 20A12021, 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
1043517410
Name
Jamison Ryan Thompson
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A12021 CA
Self-reported in NPPES; status is on the state search
Practice location
4755 Katella Ave., Suite 103, Cypress, CA 90720
Phone
(657) 241-8101
Enumerated
Feb 22, 2011
Record last updated
Mar 15, 2022
Fax
(657) 276-4730
Medicare enrollment
Enrolled (PECOS I20130809000371); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 Jamison Ryan Thompson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A12021
    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.

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28% more Medicare Part D claims than the average family medicine physician in 2024

4,538 Medicare Part D claims for 431 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 60 claims were for opioids.

  1. Jamison Thompson4,538
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium364 claims
  2. Amlodipine Besylate201 claims
  3. Levothyroxine Sodium154 claims
  4. Losartan Potassium139 claims
  5. Omeprazole99 claims
  6. Sertraline Hcl96 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.

Bills Medicare through one group practice

  1. Memorialcare Medical FoundationFountain Valley, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jamison Ryan Thompson among 17,133 family medicine physician records in California

Jamison Ryan Thompson, D.O. 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 2011, is newer than 63% of them.

  • NPI issued2011 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2005 among the 10,652 with a school on file
  • Record last updated2022 · 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).

8 family medicine physician records list a practice address in Cypress

They are 8 of the 631 NPPES records with a practice address in Cypress, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Andrea Brown, MDLos Alamitos, CA 907201710906706
  2. Daniel Chan, MDLos Alamitos, CA 907201346260908
  3. Jose De Souza, MDLos Alamitos, CA 907201649299637
  4. Sandra Goines, D.O.Los Alamitos, CA 907201790756054
  5. Nancy Helms, PACLos Alamitos, CA 907201407878143
  6. Gloria Hu, M.D.Los Alamitos, CA 907201396062279
  7. Jennifer Kim Loomis, D.O.Los Alamitos, CA 907201215136940
  8. Gregory Kimura, MDLos Alamitos, CA 907201962421958

Common questions

What is Jamison Ryan Thompson, D.O.'s NPI number?

Jamison Ryan Thompson, D.O.'s National Provider Identifier (NPI) is 1043517410, issued on Feb 22, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Jamison Ryan Thompson, D.O. located?

The NPPES record lists a practice address at 4755 Katella Ave., Suite 103, Cypress, CA, 90720. Phone: (657) 241-8101. Providers update this record themselves, so call before visiting.

How can I verify Jamison Ryan Thompson, D.O.'s license?

NPPES lists California license number 20A12021, 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 Jamison Ryan Thompson, D.O. prescribe under Medicare Part D?

In 2024, Jamison Ryan Thompson, D.O. had 4,538 Medicare Part D claims for 431 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.