NPPES file of Aug 9, 2026

Kenneth Joseph Tobin, DO

Cardiovascular Disease Physician · Sonoma, CA

Kenneth Joseph Tobin, DO is a cardiovascular disease physician with a practice address in Sonoma, California, and NPI 1700962727, issued on Oct 31, 2006. Check the license (California 25035, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700962727
Name
Kenneth Joseph Tobin
Credential
DO
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License numbers
25035 CA
5101011720 MI
Self-reported in NPPES; status is on the state search
Practice location
651 1St St W Ste L, Sonoma, CA 95476
Phone
(707) 935-1470
Enumerated
Oct 31, 2006
Record last updated
May 15, 2026
Medicaid ID
4709100 MI
Medicare enrollment
Enrolled (PECOS I20040414001363); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 651 1St St W Ste L

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

  1. Steven Mickelson, PAPhysician Assistant1477673804
  2. Alex Rainow, MDCardiovascular Disease Physician1255577904

Verify Kenneth Joseph Tobin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 25035
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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53% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

1,445 Medicare Part D claims for 255 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Kenneth Tobin1,445
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate231 claims
  2. Atorvastatin Calcium121 claims
  3. Amlodipine Besylate105 claims
  4. Rosuvastatin Calcium100 claims
  5. Losartan Potassium80 claims
  6. Amlodipine Besylate-Benazepril76 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.

Bills Medicare through one group practice

  1. Regents OF The University OF MichiganCanton, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kenneth Joseph Tobin among 2,574 cardiovascular disease physician records in California

Kenneth Joseph Tobin, DO is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 45% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1992 · median 1999 among the 1,742 with a school on file
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. James Price, MDSonoma, CA 954761245244755
  2. Alex Rainow, MDSonoma, CA 954761255577904
  3. Benjamin Meyer, M.D.Ukiah, CA 954821447235254
  4. Dale Morrison, M.D.Ukiah, CA 954821447258280
  5. Jon Portnoff, M.D.Ukiah, CA 954821609874445
  6. William Bowden, D.O., F.A.C.C.Windsor, CA 954921528133998
  7. Bradley Clair, M.D.Lakeport, CA 954531083611198
  8. Mark Gardner, MDLakeport, CA 954531811921174

Common questions

What is Kenneth Joseph Tobin, DO's NPI number?

Kenneth Joseph Tobin, DO's National Provider Identifier (NPI) is 1700962727, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth Joseph Tobin, DO located?

The NPPES record lists a practice address at 651 1St St W Ste L, Sonoma, CA, 95476. Phone: (707) 935-1470. Providers update this record themselves, so call before visiting.

How can I verify Kenneth Joseph Tobin, DO's license?

NPPES lists California license number 25035, 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 Kenneth Joseph Tobin, DO prescribe under Medicare Part D?

In 2024, Kenneth Joseph Tobin, DO had 1,445 Medicare Part D claims for 255 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.