Steven C. Wirth, MD
Family Medicine Physician · Ukiah, CA
Steven C. Wirth, MD is a family medicine physician with a practice address in Ukiah, California, and NPI 1609874510, issued on Jul 13, 2005. Check the license (California G79607, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven C. Wirth
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G79607 CA
Self-reported in NPPES; status is on the state search - Practice location
- 721 S Dora St, Ukiah, CA 95482
- Phone
- (707) 462-3300
- Enumerated
- Jul 13, 2005
- Record last updated
- Jul 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (707) 462-3303
- Medicare enrollment
- Enrolled (PECOS I20040202000608); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 721 S Dora St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Scott Gherini, M.D.Orthopaedic Surgery Physician1033175187
Verify Steven C. Wirth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G79607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.6 times the Medicare Part D claims of the average family medicine physician in 2024
12,683 Medicare Part D claims for 657 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. 883 claims were for opioids.
Most prescribed
- Atorvastatin Calcium774 claims
- Amlodipine Besylate564 claims
- Lisinopril396 claims
- Levothyroxine Sodium370 claims
- Hydrocodone-Acetaminophen369 claims
- Pantoprazole Sodium363 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mendocino Community Health Clinic IncLakeport, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven C. Wirth among 17,133 family medicine physician records in California
Steven C. Wirth, MD 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 fileYes · 62% of these records are
- Graduated1985 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 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
- Thomas Billings, M.D.Ukiah, CA 954821326043852
- 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
Common questions
What is Steven C. Wirth, MD's NPI number?
Steven C. Wirth, MD's National Provider Identifier (NPI) is 1609874510, issued on Jul 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Steven C. Wirth, MD located?
The NPPES record lists a practice address at 721 S Dora St, Ukiah, CA, 95482. Phone: (707) 462-3300. Providers update this record themselves, so call before visiting.
How can I verify Steven C. Wirth, MD's license?
NPPES lists California license number G79607, 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 Steven C. Wirth, MD prescribe under Medicare Part D?
In 2024, Steven C. Wirth, MD had 12,683 Medicare Part D claims for 657 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Steven C. Wirth, MD's MIPS final score?
The 2023 MIPS final score is 78.3 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.