JOHN F CASSIDY IV PA-C
NPI 1891890166
Physician Assistant in Eastport, ME
About John F Cassidy Iv Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN F CASSIDY IV PA-C (NPI 1891890166) is an individual physician assistant in Eastport, Maine, licensed in Maine (PA389) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with St Joseph Hospital, and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John F Cassidy Iv Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph Hospital
Acute Care Hospitals · Bangor, MENorthern Light Eastern Maine Medical Center
Acute Care Hospitals · Bangor, MENorthern Light Maine Coast Hospital
Acute Care Hospitals · Ellsworth, MECalais Community Hospital
Critical Access Hospitals · Calais, MEDown East Community Hospital
Critical Access Hospitals · Machias, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04631 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EASTPORT, ME 04631
EASTPORT, ME 04631
EASTPORT, ME 04631
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Cassidy's NPI number?
The NPI number for John Cassidy is 1891890166. It was assigned to this individual provider in the NPPES registry on September 13, 2006.
Where is John Cassidy located?
John Cassidy practices at 30 Boynton St, Eastport, ME 04631. The listed phone number is (207) 853-6001.
What is John Cassidy's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is John Cassidy enrolled in Medicare?
Yes. John Cassidy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does John Cassidy accept?
Health plans from Anthem Blue Cross and Blue Shield list John Cassidy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Cassidy affiliated with any hospitals?
According to CMS data, John Cassidy is affiliated with St Joseph Hospital, Northern Light Eastern Maine Medical Center, Northern Light Maine Coast Hospital, Calais Community Hospital and Down East Community Hospital.
When was this NPI record last updated?
The NPPES record for John Cassidy was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John F Cassidy IV, PA-C · NPI 1891890166
Physician Assistant physician in Eastport, Maine. Individual provider, active in the CMS NPPES registry since September 13, 2006.
## Identity
- **NPI:** 1891890166 (Entity type: Individual)
- **Enumerated:** September 13, 2006
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **State license:** PA389 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 30 BOYNTON ST, Eastport, ME 04631-1306
- **Phone:** (207) 853-6001
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** February 4, 2026
- **Other identifiers:** Medicaid 259290099 (ME); Other MM9086 (ME)
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Source: [NPI Profile](https://npiprofile.com/npi/1891890166) · Data from the CMS NPPES public registry.