NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Martin S Chattman, M.D.

Family Medicine Physician in Carefree, AZ · enumerated 2006.

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

National Provider Identifier

1427117894

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Martin S Chattman
Credential M.D.
Sex Male
Practice address 36889 N Tom Darlington Dr, Suite A4, Carefree, AZ, 85377
Fax (480) 488-7014
Enumeration date Dec 8, 2006
Last updated in NPPES Nov 20, 2016

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 7618 (AZ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
OTC3627 Other AZ OUTPATIENT TREATMENT CTR
03D0527898 Other AZ CLIA
1790889319 Other AZ CLM MEDICAL MANAGE NPI

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

What is the NPI number for Martin Chattman?
The National Provider Identifier (NPI) for Martin Chattman is 1427117894, a Type 1 (individual) record in the CMS NPPES registry.
Where does Martin Chattman practice?
The practice location on file with NPPES is in Carefree, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-20.