Susan Ganzhorn, PA
NPI 1336299973 · Medical Physician Assistant · Gonzales, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Ganzhorn, PA is a Medical Physician Assistant provider in Gonzales, CA (NPI 1336299973).
Provider details
- NPI number
- 1336299973
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- Yes
- License
- PA13472 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 131 | 48 |
| Losartan Potassium | 82 | 26 |
| Metformin Hcl | 78 | 27 |
| Levothyroxine Sodium | 67 | 21 |
| Amlodipine Besylate | 63 | 22 |
| Lisinopril | 60 | 20 |
| Hydrochlorothiazide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$189 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 355 Abbott St Ste 100Salinas, CA 93901-4484Phone: (831) 751-7070
- 600 Main StSoledad, CA 93960-2533Phone: (831) 678-2665Fax: (831) 678-0776
Registry dates
- Enumerated
- 2007-01-12
- Last updated
- 2025-02-25
- Certified
- 2025-02-25
Frequently asked questions
- What is Susan Ganzhorn's NPI number?
- Susan Ganzhorn's National Provider Identifier (NPI) is 1336299973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Ganzhorn's specialty?
- Susan Ganzhorn is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Susan Ganzhorn located?
- Susan Ganzhorn's practice location on file with NPPES is 850 5th St, Gonzales, CA 93926-9491.
- What is Susan Ganzhorn's phone number?
- The practice phone number listed in the NPPES registry for Susan Ganzhorn is (831) 675-3601.
- Does Susan Ganzhorn accept Medicare?
- Susan Ganzhorn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Ganzhorn's NPI active?
- Yes — Susan Ganzhorn's NPI (1336299973) is active in the NPPES registry as of the last update on 2025-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.