John Harrison, PA-C
NPI 1437814399 · Physician Assistant · Marietta, GA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Harrison, PA-C is a Physician Assistant provider in Marietta, GA (NPI 1437814399).
Provider details
- NPI number
- 1437814399
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
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
4 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
- 2021-11-05
- Last updated
- 2021-11-05
- Certified
- 2021-11-05
Frequently asked questions
- What is John Harrison's NPI number?
- John Harrison's National Provider Identifier (NPI) is 1437814399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Harrison's specialty?
- John Harrison is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Harrison located?
- John Harrison's practice location on file with NPPES is 1000 Halsey Ave Se, Marietta, GA 30060-4277.
- What is John Harrison's phone number?
- The practice phone number listed in the NPPES registry for John Harrison is (678) 569-5090.
- Does John Harrison accept Medicare?
- John Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Harrison's NPI active?
- Yes — John Harrison's NPI (1437814399) is active in the NPPES registry as of the last update on 2021-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.