NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nathan D Peffer, M.D.

Urology Physician in Doylestown, PA · enumerated 2015 · practices at Via Affiliates.

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

National Provider Identifier

1003296567

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Nathan D Peffer
Credential M.D.
Sex Male
Practice address 102 Progress Dr Ste 101, Doylestown, PA, 18901
Phone (215) 230-0600
Fax (215) 230-7065
Enumeration date May 31, 2015
Last updated in NPPES Oct 28, 2020

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License MD471258 (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Nathan Peffer practice?
The practice location on file with NPPES is in Doylestown, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Nathan Peffer?
The National Provider Identifier (NPI) for Nathan Peffer is 1003296567, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-28.