John Callahan, PA-C
NPI 1588646962 · Physician Assistant · Pensacola, FL
Enrolled with Medicare as Order and Referring Only - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Callahan, PA-C is a Physician Assistant provider in Pensacola, FL (NPI 1588646962).
Provider details
- NPI number
- 1588646962
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-18
- Last updated
- 2022-02-23
- Certified
- 2022-02-23
Frequently asked questions
- What is John Callahan's NPI number?
- John Callahan's National Provider Identifier (NPI) is 1588646962, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Callahan's specialty?
- John Callahan is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Callahan located?
- John Callahan's practice location on file with NPPES is 6000 W Highway 98, Pensacola, FL 32512-1523.
- What is John Callahan's phone number?
- The practice phone number listed in the NPPES registry for John Callahan is (850) 452-6601.
- Does John Callahan accept Medicare?
- John Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Callahan's NPI active?
- Yes — John Callahan's NPI (1588646962) is active in the NPPES registry as of the last update on 2022-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.