Michael S. Knappman
Physician Assistant · Santa Rosa, CA
Michael S. Knappman is a physician assistant with a practice address in Santa Rosa, California, and NPI 1588726681, issued on Dec 14, 2006. Check the license (California 11869, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Michael S. Knappman
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 11869 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3420 Chanate RD, Santa Rosa, CA 95404
- Phone
- (707) 537-6364
- Enumerated
- Dec 14, 2006
- Record last updated
- Jul 17, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 3420 Chanate RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sandra AberleRegistered Nurse1114087012
- Margaret HewittRegistered Nurse1457404212
- Pat KavanaughNurse Practitioner1598984379
- Julie KleinCommunity Health Registered Nurse1134362122
- Kimberly MahrRegistered Nurse1184786063
- Susan MayhewRegistered Nurse1669615571
Verify Michael S. Knappman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 11869Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Michael S. Knappman among 14,451 physician assistant records in California
Michael S. Knappman is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2014 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physician Assistant providers in California
There are 14,451 physician assistant records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 14,451 in California → Every provider in Santa Rosa → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Lindsey SnetsingerSanta Rosa, CA 954041962344747
- James StaffordSanta Rosa, CA 954041255483731
- Peter TimmermanSanta Rosa, CA 954041629549654
- Angela Abboud, MMS, PA-CSanta Rosa, CA 954031114399334
- Cecilia Alvarez Barajas, PASanta Rosa, CA 954031942844055
- Eric Bell, PA-CSanta Rosa, CA 954051891217204
- Jennifer BleckSanta Rosa, CA 954031326683350
- Leslie Cady, P.A.-CSanta Rosa, CA 954051952586547
Common questions
What is Michael S. Knappman's NPI number?
Michael S. Knappman's National Provider Identifier (NPI) is 1588726681, issued on Dec 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Knappman located?
The NPPES record lists a practice address at 3420 Chanate RD, Santa Rosa, CA, 95404. Phone: (707) 537-6364. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Knappman's license?
NPPES lists California license number 11869, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.