Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Holley Fales Allen, MD

Q: What is the NPI number for Holley Allen?

The National Provider Identifier (NPI) for Holley Allen is 1225129471, a Type 1 (individual) record in the CMS NPPES registry.

Pediatric Endocrinology Physician in Springfield, MA · enumerated 2006.

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

National Provider Identifier

1225129471

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Registry record

Entity type Individual (Type 1)

Name Holley Fales Allen

Credential MD

Sex Female

Practice address 50 Wason Ave, 1st Fl, Springfield, MA, 01107

Phone (413) 794-5437

Fax (413) 794-0395

Enumeration date Sep 27, 2006

Last updated in NPPES Dec 29, 2017

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 80537 (MA) Secondary

2080P0205X Pediatric Endocrinology Physician Allopathic & Osteopathic Physicians · License 80537 (MA) 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 Holley Allen practice?

The practice location on file with NPPES is in Springfield, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Holley Allen?

The National Provider Identifier (NPI) for Holley Allen is 1225129471, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-12-29.