Alison Fassnacht, PA-C
NPI 1740598861 · Physician Assistant · Nantucket, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alison Fassnacht, PA-C is a Physician Assistant provider in Nantucket, MA (NPI 1740598861).
Provider details
- NPI number
- 1740598861
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 014439 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
15 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$131 across 1 record (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)
- 1111 Franklin AvenueMineola, NY 11501Phone: (516) 741-4138Fax: (516) 294-4301
- 259 1st StMineola, NY 11501-3957Phone: (516) 663-0333
Registry dates
- Enumerated
- 2010-09-23
- Last updated
- 2024-04-03
- Certified
- 2024-04-03
Frequently asked questions
- What is Alison Fassnacht's NPI number?
- Alison Fassnacht's National Provider Identifier (NPI) is 1740598861, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alison Fassnacht's specialty?
- Alison Fassnacht is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alison Fassnacht located?
- Alison Fassnacht's practice location on file with NPPES is 57 Prospect St Unit 1, Nantucket, MA 02554-4396.
- What is Alison Fassnacht's phone number?
- The practice phone number listed in the NPPES registry for Alison Fassnacht is (516) 906-9336.
- Does Alison Fassnacht accept Medicare?
- Alison Fassnacht is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alison Fassnacht's NPI active?
- Yes — Alison Fassnacht's NPI (1740598861) is active in the NPPES registry as of the last update on 2024-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.