Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alla Grigorevna Chapman, MD

Q: What is the NPI number for Alla Chapman?

The National Provider Identifier (NPI) for Alla Chapman is 1558335174, a Type 1 (individual) record in the CMS NPPES registry.

Family Medicine Physician in Amherst, MA · enumerated 2006.

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

National Provider Identifier

1558335174

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Alla Grigorevna Chapman

Credential MD

Sex Female

Practice address 31 Hall Dr, Amherst Medical Center, Amherst, MA, 01002

Phone (413) 256-8561

Fax (866) 644-0869

Enumeration date Feb 13, 2006

Last updated in NPPES Oct 30, 2015

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD424877 (PA) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 233177-1 (NY) Secondary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 264105 (MA) 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
02581464	Medicaid	NY	-
CC9269	Other	PA	RR MEDICARE GROUP
GU039851	Other	PA	MEDICARE GROUP
CC8362	Other	NY	RR MEDICARE GROUP
P00199107	Other	NY	RR MEDICARE PIN
P00413975	Other	PA	RR MEDICARE PIN

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 Alla Chapman?

The National Provider Identifier (NPI) for Alla Chapman is 1558335174, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alla Chapman practice?

The practice location on file with NPPES is in Amherst, MA. 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 2015-10-30.