Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nathan J Hemerly, DO

Family Medicine Physician in Mechanicsburg, PA · enumerated 2010 · practices at Milton S Hershey Medical Center Physicians Group.

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

National Provider Identifier

1669792784

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Nathan J Hemerly

Credential DO

Sex Male

Practice address 140 Old Willow Mill Rd, Mechanicsburg, PA, 17050

Phone (717) 766-4635

Fax (717) 766-4818

Enumeration date Jun 11, 2010

Last updated in NPPES Oct 16, 2017

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OS015946 (PA) 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

Other identifiers

Identifier	Type	State	Issuer
1033505330001	Medicaid	PA	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Nathan Hemerly's NPI record?

Cross-check NPI 1669792784 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1669792784 active?

Yes, as of the latest NPPES snapshot, NPI 1669792784 is active (record last updated 2017-10-16).

Other providers at this practice address

Browse all →

Ann Bogdan Family Medicine Physician · Mechanicsburg, PA NPI 1992762058 Mack Ruffin Family Medicine Physician · Mechanicsburg, PA NPI 1245329101 Kristen Slinkard Family Medicine Physician · Mechanicsburg, PA NPI 1578927406 Milton S Hershey Medical Center Physicians Group Family Medicine Physician · Mechanicsburg, PA NPI 1235678939 Joshua Lebo Physician Assistant · Mechanicsburg, PA NPI 1215429295

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-10-16.