Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Leslye Robin Heilig, MD

Pediatrics Physician in Great Barrington, MA · enumerated 2005 · practices at Macony, PC.

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

National Provider Identifier

1235122417

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Registry record

Entity type Individual (Type 1)

Name Dr. Leslye Robin Heilig

Credential MD

Sex Female

Practice address 100 Maple Ave Ste 1, Great Barrington, MA, 01230

Phone (413) 528-4047

Fax (413) 528-3407

Enumeration date Aug 24, 2005

Last updated in NPPES Aug 27, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 073130 (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
26955	Other	-	MVP
3067432	Medicaid	MA	-
817410	Other	-	UNITED HEALTH
P625198	Other	-	OXFORD
000000020948	Other	-	BMC HEALTHNET
00979915	Other	-	NY MEDICAID
10275301	Other	-	CIGNA
MA0479	Other	-	HEALTHNET OF THE NE, INC.
073130	Other	-	CTCARE
10029273	Other	-	CDPHP
28100	Other	-	CHILDRENS MEDICAL
12991	Other	-	HEALTH NEW ENGLAND
073130	Other	-	TUFTS HEALTH PLAN
A64448	Other	-	HARVARD PILGRIM HEALTH
J10138	Other	-	BCBS OF MA

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 Leslye Heilig practice?

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

What is the NPI number for Leslye Heilig?

The National Provider Identifier (NPI) for Leslye Heilig is 1235122417, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Deborah Buccino Pediatrics Physician · Great Barrington, MA NPI 1568455913 Macony, PC Pediatrics Physician · Great Barrington, MA NPI 1023027810 Vitaly Nazarov Pediatrics Physician · Gt Barrington, MA NPI 1811165350 Mitali Saha Pediatrics Physician · Great Barrington, MA NPI 1730336892

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-27.