Robert William Plantz, PA-C
Physician Assistant · Ferendale, CA
Robert William Plantz, PA-C is a physician assistant with a practice address in Ferendale, California, and NPI 1194763987, issued on Jun 3, 2006. Check the license (California 18382, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert William Plantz
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 18382 CA
Self-reported in NPPES; status is on the state search - Practice location
- 638 Main St, Ferendale, CA 95536
- Phone
- (707) 786-4028
- Enumerated
- Jun 3, 2006
- Record last updated
- Dec 22, 2025
- Fax
- (707) 786-9029
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Robert William Plantz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 18382Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average physician assistant in 2024
12 Medicare Part D claims, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Robert William Plantz among 14,451 physician assistant records in California
Robert William Plantz, PA-C 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. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2025 · 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.
The 8 physician assistant records with the nearest ZIP codes
- Margaret Lee, PAFerndale, CA 955361407365455
- Caris CassadyFortuna, CA 955401790299048
- Brent Dawson, P.A.Fortuna, CA 955401548566276
- Tatsiana Franco, PAFortuna, CA 955401558037465
- Gina Gastelum, P.A.C.Fortuna, CA 955401912946567
- Michelle Hoopes, PHYSICIAN ASSISTANTFortuna, CA 955401104173418
- Whitney Werner, PAFortuna, CA 955401629011754
- Shellie Babich, PACrescent City, CA 955311508941436
Common questions
What is Robert William Plantz, PA-C's NPI number?
Robert William Plantz, PA-C's National Provider Identifier (NPI) is 1194763987, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert William Plantz, PA-C located?
The NPPES record lists a practice address at 638 Main St, Ferendale, CA, 95536. Phone: (707) 786-4028. Providers update this record themselves, so call before visiting.
How can I verify Robert William Plantz, PA-C's license?
NPPES lists California license number 18382, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Robert William Plantz, PA-C prescribe under Medicare Part D?
In 2024, Robert William Plantz, PA-C had 12 Medicare Part D claims; the average among physician assistant prescribers was 830. 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.