Kathleen Ellen Whisman, M.D.
Family Medicine Physician · Sebastopol, CA
Kathleen Ellen Whisman, M.D. is a family medicine physician with a practice address in Sebastopol, California, and NPI 1124179353, issued on Jan 15, 2007. Check the license (California G79463, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kathleen Ellen Whisman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G79463 CA
Self-reported in NPPES; status is on the state search - Practice location
- 678 Petaluma Ave, Sebastopol, CA 95472
- Phone
- (707) 823-6997
- Enumerated
- Jan 15, 2007
- Record last updated
- Jul 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (707) 829-3709
- Medicaid ID
- 00G794630 CA
- Medicare enrollment
- Enrolled (PECOS I20090805000362); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 678 Petaluma Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- David Fichman, MDFamily Medicine Physician1558359885
- Jeffrey Hergenrather, MDIntegrative Medicine Physician1013633312
Verify Kathleen Ellen Whisman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G79463Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average family medicine physician in 2024
1,342 Medicare Part D claims for 108 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 58 claims were for opioids.
Most prescribed
- Losartan Potassium68 claims
- Levothyroxine Sodium61 claims
- Trazodone Hcl59 claims
- Atorvastatin Calcium53 claims
- Amlodipine Besylate48 claims
- Escitalopram Oxalate48 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.
Industry payments in 2024: $204.71
5 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Kathleen Ellen Whisman among 17,133 family medicine physician records in California
Kathleen Ellen Whisman, 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1992 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 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).
27 family medicine physician records list a practice address in Sebastopol
They are 27 of the 550 NPPES records with a practice address in Sebastopol, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Sebastopol → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kathleen Andersen, M.D.Sebastopol, CA 954721679570899
- Hope Becklund, MDSebastopol, CA 954721477515435
- Jason Cunningham, DOSebastopol, CA 954721811990237
- Nancy Davidson, M.D.Sebastopol, CA 954721417959453
- Patricia Drier, M.D.Sebastopol, CA 954721487651600
- Gerald Eliaser, M.D.Sebastopol, CA 954721558474270
- David Fichman, MDSebastopol, CA 954721558359885
- Michael Holmes, MDSebastopol, CA 954721982708103
Common questions
What is Kathleen Ellen Whisman, M.D.'s NPI number?
Kathleen Ellen Whisman, M.D.'s National Provider Identifier (NPI) is 1124179353, issued on Jan 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Ellen Whisman, M.D. located?
The NPPES record lists a practice address at 678 Petaluma Ave, Sebastopol, CA, 95472. Phone: (707) 823-6997. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Ellen Whisman, M.D.'s license?
NPPES lists California license number G79463, 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 Kathleen Ellen Whisman, M.D. prescribe under Medicare Part D?
In 2024, Kathleen Ellen Whisman, M.D. had 1,342 Medicare Part D claims for 108 beneficiaries; 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.