Ruth D. Wilson, M.D.
Internal Medicine Physician · Napa, CA
Ruth D. Wilson, M.D. is an internal medicine physician with a practice address in Napa, California, and NPI 1407822331, issued on Feb 28, 2006. Check the license (California G080389, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ruth D. Wilson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G080389 CA
Self-reported in NPPES; status is on the state search - Practice location
- 980 Trancas St, Napa, CA 94558
- Phone
- (707) 255-3583
- Enumerated
- Feb 28, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (707) 255-3579
- Medicare enrollment
- Enrolled (PECOS I20050713001104); may accept Medicare assignment
- Medical or professional school
- University Of Utah School Of Medicine, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 980 Trancas St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ruth D. Wilson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G080389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,084 Medicare Part D claims for 94 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Atorvastatin Calcium80 claims
- Levothyroxine Sodium76 claims
- Amlodipine Besylate50 claims
- Tramadol Hcl45 claims
- Simvastatin38 claims
- Metoprolol Succinate36 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.
Ruth D. Wilson among 17,696 internal medicine physician records in California
Ruth D. Wilson, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 internal medicine physician records list a practice address in Napa
They are 61 of the 3,583 NPPES records with a practice address in Napa, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Napa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Abhijit Adhye, M.D.Napa, CA 945581992763205
- Scott Anderson, MDNapa, CA 945581619929494
- Patricia Dizmang, M.D.Napa, CA 945581194790261
- Beth Hartung, M.D.Napa, CA 945581275501488
- Ronald Julis, M.D.Napa, CA 945581053311167
- Paul Laband, MDNapa, CA 945581427029040
- Monica McKeever, MDNapa, CA 945581538135298
- Lane Melgarejo, MDNapa, CA 945581588657308
Common questions
What is Ruth D. Wilson, M.D.'s NPI number?
Ruth D. Wilson, M.D.'s National Provider Identifier (NPI) is 1407822331, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth D. Wilson, M.D. located?
The NPPES record lists a practice address at 980 Trancas St, Napa, CA, 94558. Phone: (707) 255-3583. Providers update this record themselves, so call before visiting.
How can I verify Ruth D. Wilson, M.D.'s license?
NPPES lists California license number G080389, 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 Ruth D. Wilson, M.D. prescribe under Medicare Part D?
In 2024, Ruth D. Wilson, M.D. had 1,084 Medicare Part D claims for 94 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.