NPPES file of Aug 9, 2026

Thomas W. Ormiston, MD

Family Medicine Physician · Davis, CA

Thomas W. Ormiston, MD is a family medicine physician with a practice address in Davis, California, and NPI 1568498319, issued on Jun 23, 2006. Check the license (California G54481, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568498319
Name
Thomas W. Ormiston
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G54481 CA
Self-reported in NPPES; status is on the state search
Practice location
2330 W Covell Blvd, Davis, CA 95616
Phone
(530) 756-2364
Enumerated
Jun 23, 2006
Record last updated
Oct 30, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(530) 756-5817
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.
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Also registered at 2330 W Covell Blvd

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

  1. Ashley Anderson, DOFamily Medicine Physician1730448366
  2. Corinne Case, PA-CMedical Physician Assistant1053661603
  3. Priscilla Ching, FNPFamily Nurse Practitioner1659746378
  4. Marcia Isakari, MDFamily Medicine Physician1861580771
  5. Veeraparn Kanchananakhin, M.D.Pediatrics Physician1831118942
  6. Kevin Mould, M.D.Family Medicine Physician1255351748

Verify Thomas W. Ormiston in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G54481
    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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99% fewer Medicare Part D claims than the average family medicine physician in 2024

20 Medicare Part D claims for 13 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Thomas Ormiston20
  2. Specialty average3,544

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 34.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score15.4
  2. Costout of 100 · 30%63.1
  3. Promoting interoperabilityout of 100 · 25%0.0
  4. Improvement activities20 of 40 points · 15%50.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

96 family medicine physician records list a practice address in Davis

They are 96 of the 1,711 NPPES records with a practice address in Davis, and 17,133 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Thomas W. Ormiston, MD's NPI number?

Thomas W. Ormiston, MD's National Provider Identifier (NPI) is 1568498319, issued on Jun 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas W. Ormiston, MD located?

The NPPES record lists a practice address at 2330 W Covell Blvd, Davis, CA, 95616. Phone: (530) 756-2364. Providers update this record themselves, so call before visiting.

How can I verify Thomas W. Ormiston, MD's license?

NPPES lists California license number G54481, 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 Thomas W. Ormiston, MD prescribe under Medicare Part D?

In 2024, Thomas W. Ormiston, MD had 20 Medicare Part D claims for 13 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Thomas W. Ormiston, MD's MIPS final score?

The 2023 MIPS final score is 34.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.