Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stanley Chaleff, MD

Pediatric Hematology & Oncology Physician in Scarborough, ME · enumerated 2006.

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

National Provider Identifier

1871549451

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Registry record

Entity type Individual (Type 1)

Name Dr. Stanley Chaleff

Credential MD

Sex Male

Practice address 100 Campus Dr, Unit 107, Scarborough, ME, 04074

Phone (207) 885-7565

Fax (207) 885-7577

Enumeration date May 26, 2006

Last updated in NPPES Apr 27, 2017

Taxonomy & licenses

2080P0207X Pediatric Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 017733 (ME) 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
432869799	Medicaid	ME	-
30207603	Medicaid	NH	-

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 1871549451 active?

Yes, as of the latest NPPES snapshot, NPI 1871549451 is active (record last updated 2017-04-27).

How do I verify Stanley Chaleff's NPI record?

Cross-check NPI 1871549451 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-27.