Rebecca Lynn Kershnar, MD
Family Medicine Physician · Watsonville, CA
Rebecca Lynn Kershnar, MD is a family medicine physician with a practice address in Watsonville, California, and NPI 1891932752, issued on Jan 14, 2009. Check the license (California A106418, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rebecca Lynn Kershnar
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A106418 CA
Self-reported in NPPES; status is on the state search - Practice location
- 550 S Green Valley RD, Watsonville, CA 95076
- Phone
- (831) 458-5865
- Enumerated
- Jan 14, 2009
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101008000459); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 550 S Green Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ihovana Aguirre, AGNP, PMHNPAdult Health Nurse Practitioner1144973249
- Andrea Alheit, NPFamily Nurse Practitioner1043999808
- Denise Devereaux, MDFamily Medicine Physician1669452702
- Lauren Eby, D.O.Family Medicine Physician1275997512
- Mehwish Farooqi, DOFamily Medicine Physician1750872214
- Yessica Flores Escobar, NPFamily Nurse Practitioner1356847149
Verify Rebecca Lynn Kershnar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average family medicine physician in 2024
1,051 Medicare Part D claims for 155 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Levothyroxine Sodium70 claims
- Atorvastatin Calcium67 claims
- Losartan Potassium61 claims
- Lisinopril53 claims
- Alendronate Sodium44 claims
- Metformin Hcl Er43 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
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca Lynn Kershnar among 17,133 family medicine physician records in California
Rebecca Lynn Kershnar, 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 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · 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).
48 family medicine physician records list a practice address in Watsonville
They are 48 of the 1,044 NPPES records with a practice address in Watsonville, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Watsonville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Aleman, MDWatsonville, CA 950761265415376
- Tye Depena, M.D.Watsonville, CA 950761467459735
- Denise Devereaux, MDWatsonville, CA 950761669452702
- James Greenwood, D.O.Watsonville, CA 950761477589281
- Anniken Hansen, M.D.Watsonville, CA 950761447273206
- Kathryn Harvey, M.D.Watsonville, CA 950761679553556
- Carol Haubach, MDWatsonville, CA 950761457378671
- Wendy Leonard, MDWatsonville, CA 950761497755508
Common questions
What is Rebecca Lynn Kershnar, MD's NPI number?
Rebecca Lynn Kershnar, MD's National Provider Identifier (NPI) is 1891932752, issued on Jan 14, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Lynn Kershnar, MD located?
The NPPES record lists a practice address at 550 S Green Valley RD, Watsonville, CA, 95076. Phone: (831) 458-5865. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Lynn Kershnar, MD's license?
NPPES lists California license number A106418, 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 Rebecca Lynn Kershnar, MD prescribe under Medicare Part D?
In 2024, Rebecca Lynn Kershnar, MD had 1,051 Medicare Part D claims for 155 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.