Susan Ganzhorn, PA
Medical Physician Assistant · Gonzales, CA
Susan Ganzhorn, PA is a medical physician assistant with a practice address in Gonzales, California, and NPI 1336299973, issued on Jan 12, 2007. Check the license (California PA13472, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Susan Ganzhorn
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- PA13472 CA
Self-reported in NPPES; status is on the state search - Practice location
- 850 5TH St, Gonzales, CA 93926
- Phone
- (831) 675-3601
- Enumerated
- Jan 12, 2007
- Record last updated
- Feb 25, 2025
- Medicare enrollment
- Enrolled (PECOS I20150421001157); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1994
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 850 5TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Susan Ganzhorn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA13472Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average medical physician assistant in 2024
1,459 Medicare Part D claims for 207 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Atorvastatin Calcium131 claims
- Losartan Potassium82 claims
- Metformin Hcl78 claims
- Levothyroxine Sodium67 claims
- Amlodipine Besylate63 claims
- Lisinopril60 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: $188.92
8 payments; by number, the most common kind was food and beverage; the largest payer was Mylan Specialty L.P. The 16,165 providers of this specialty with any payment received $1,055.00 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.
Bills Medicare through one group practice
- Salinas Valley Memorial Healthcare SystemGonzales, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan Ganzhorn among 3,376 medical physician assistant records in California
Susan Ganzhorn, PA is one of 3,376 medical physician assistant records with a practice address in California. 69% 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 20% of them.
- NPI issued2007 · 20% of these records are older, 68% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated1994 · median 2012 among the 1,347 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 medical physician assistant record lists a practice address in Gonzales
They are 1 of the 50 NPPES records with a practice address in Gonzales, and 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Gonzales → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Crystal Lynette Hernandez, PAGreenfield, CA 939271134959398
- Elizabeth Fries, PA-CBig Sur, CA 939201821095019
- Alejandra LopezMarina, CA 939331992646038
- Ryan Chapelle, PA-CMonterey, CA 939401609292234
- Tamora Holland, PAMonterey, CA 939401922338920
- Katherine Jimenez, P.A.Monterey, CA 939401417100769
- Sadie Klena, PAMonterey, CA 939401821623158
- Megan O'Neill, PA-CMonterey, CA 939401184603656
Common questions
What is Susan Ganzhorn, PA's NPI number?
Susan Ganzhorn, PA's National Provider Identifier (NPI) is 1336299973, issued on Jan 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Susan Ganzhorn, PA located?
The NPPES record lists a practice address at 850 5TH St, Gonzales, CA, 93926. Phone: (831) 675-3601. Providers update this record themselves, so call before visiting.
How can I verify Susan Ganzhorn, PA's license?
NPPES lists California license number PA13472, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Susan Ganzhorn, PA prescribe under Medicare Part D?
In 2024, Susan Ganzhorn, PA had 1,459 Medicare Part D claims for 207 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.