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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John Ryan Mahoney, DO

Orthopaedic Surgery Physician in Snellville, GA · enumerated 2015 · practices at Orthoatlanta, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144616459

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Registry record

Entity type Individual (Type 1)
Name Dr. John Ryan Mahoney
Credential DO
Sex Male
Practice address Snellville, GA, 30078
Phone (678) 205-4299
Fax (678) 214-6112
Enumeration date Apr 13, 2015
Last updated in NPPES May 20, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 34.014302 (OH) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 79435 (GA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does John Mahoney practice?
The practice location on file with NPPES is in Snellville, GA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Mahoney?
The National Provider Identifier (NPI) for John Mahoney is 1144616459, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-20.