Thomas A. Billings, M.D.
Family Medicine Physician · Ukiah, CA
Thomas A. Billings, M.D. is a family medicine physician with a practice address in Ukiah, California, and NPI 1326043852, issued on Jun 21, 2005. Check the license (California C159821, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas A. Billings
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- C159821 CA
35050954B OH
Self-reported in NPPES; status is on the state search - Practice location
- 1050 N State St, Ukiah, CA 95482
- Phone
- (707) 463-7495
- Enumerated
- Jun 21, 2005
- Record last updated
- Apr 4, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 0577559 OH
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1050 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Beverly Draudt, RN, CNM, WHNPRegistered Nurse1851460307
- Winston Eddy, M.D.Obstetrics & Gynecology Physician1497739338
- Michael Jung, MDFamily Medicine Physician1912657883
- Crystal Kimball, FNP, RNPrimary Care Nurse Practitioner1316646797
- Nancy Laybourn, P.A.Physician Assistant1669687182
- Ida Leamon, F.N.P.Family Nurse Practitioner1114131471
Verify Thomas A. Billings in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C159821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average family medicine physician in 2024
11 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Thomas A. Billings among 17,133 family medicine physician records in California
Thomas A. Billings, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2019 · 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).
33 family medicine physician records list a practice address in Ukiah
They are 33 of the 1,439 NPPES records with a practice address in Ukiah, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Ukiah → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Theron Chan, M.D.Ukiah, CA 954821952385833
- Graham Chelius, M.D.Ukiah, CA 954821063459311
- Peter Cho, MDUkiah, CA 954821619968948
- Lynne Coen, M.D.Ukiah, CA 954821851375711
- Howard Coren, M.D.Ukiah, CA 954821730124215
- Helen Hauk, M.D.Ukiah, CA 954821457338394
- Trieneke Kylstra, MDUkiah, CA 954821740243286
- Mark McVay, DOUkiah, CA 954821841255056
Common questions
What is Thomas A. Billings, M.D.'s NPI number?
Thomas A. Billings, M.D.'s National Provider Identifier (NPI) is 1326043852, issued on Jun 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas A. Billings, M.D. located?
The NPPES record lists a practice address at 1050 N State St, Ukiah, CA, 95482. Phone: (707) 463-7495. Providers update this record themselves, so call before visiting.
How can I verify Thomas A. Billings, M.D.'s license?
NPPES lists California license number C159821, 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 A. Billings, M.D. prescribe under Medicare Part D?
In 2024, Thomas A. Billings, M.D. had 11 Medicare Part D claims; 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.