William W. Bowen, M.D.
Specialist · Willits, CA
William W. Bowen, M.D. is a specialist with a practice address in Willits, California, and NPI 1770593386, issued on Aug 8, 2006. Check the license (California G28722, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William W. Bowen
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- G28722 CA
Self-reported in NPPES; status is on the state search - Practice location
- 84 Madrone St, Willits, CA 95490
- Phone
- (707) 459-6855
- Enumerated
- Aug 8, 2006
- Record last updated
- Jul 6, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (707) 459-9585
- Medicare enrollment
- Enrolled (PECOS I20120314000823); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1973
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 84 Madrone St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William W. Bowen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G28722Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average specialist in 2024
506 Medicare Part D claims for 216 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 75 claims were for opioids.
Most prescribed
- Cephalexin121 claims
- Amoxicillin-Clavulanate Potass97 claims
- Oxycodone-Acetaminophen26 claims
- Oxycodone Hcl24 claims
- Gabapentin23 claims
- Celecoxib22 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): 73.8 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).
Industry payments in 2024: $85.87
2 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mendocino Community Health Clinic IncWillits, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William W. Bowen among 5,749 specialist records in California
William W. Bowen, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1973 · median 1989 among the 1,075 with a school on file
- Record last updated2010 · 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.
All 5,749 in California → Every provider in Willits → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Laisenia SauWillits, CA 954901679194971
- Daisy Bravo LagunasWindsor, CA 954921962320655
- Frances Filgas, MDWindsor, CA 954921619034493
- Margaret Bracewell, OTR/LUkiah, CA 954821497920490
- Joseph Kimbro, MDUkiah, CA 954821134290380
- David De Weese, PHYSICAL THERAPISTEureka, CA 955011205866167
- Michael Fratkin, MDEureka, CA 955011508892738
- Margaret Gordon, M.D.Eureka, CA 955011568462026
Common questions
What is William W. Bowen, M.D.'s NPI number?
William W. Bowen, M.D.'s National Provider Identifier (NPI) is 1770593386, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William W. Bowen, M.D. located?
The NPPES record lists a practice address at 84 Madrone St, Willits, CA, 95490. Phone: (707) 459-6855. Providers update this record themselves, so call before visiting.
How can I verify William W. Bowen, M.D.'s license?
NPPES lists California license number G28722, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William W. Bowen, M.D. prescribe under Medicare Part D?
In 2024, William W. Bowen, M.D. had 506 Medicare Part D claims for 216 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is William W. Bowen, M.D.'s MIPS final score?
The 2023 MIPS final score is 73.8 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.