Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Gustave Ammerman, M.D.

Psychiatry Physician in Danbury, CT · enumerated 2006.

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

National Provider Identifier

1316032295

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Donald Gustave Ammerman

Credential M.D.

Sex Male

Practice address 84 Hospital Ave, Cpc Associates, Danbury, CT, 06810

Phone (203) 792-6060

Enumeration date Oct 4, 2006

Last updated in NPPES Aug 20, 2009

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License RT1438 (NH) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 047925 (CT) 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

Is NPI 1316032295 active?

Yes, as of the latest NPPES snapshot, NPI 1316032295 is active (record last updated 2009-08-20).

How do I verify Donald Ammerman's NPI record?

Cross-check NPI 1316032295 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-20.