NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gerald Gehr, MD

Medical Oncology Physician in Manchester, NH · enumerated 2005 · practices at Catholic Medical Center.

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

National Provider Identifier

1114903309

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Gerald Gehr
Credential MD
Sex Male
Practice address 87 Mcgregor St, Ste 4100, Manchester, NH, 03102
Fax (603) 695-2855
Enumeration date Dec 19, 2005
Last updated in NPPES Nov 27, 2017

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 8241 (NH) 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 Gerald Gehr practice?
The practice location on file with NPPES is in Manchester, NH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gerald Gehr?
The National Provider Identifier (NPI) for Gerald Gehr is 1114903309, 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 2017-11-27.