Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Reilly Estill, MD

Internal Medicine Physician in Ithaca, NY · enumerated 2006.

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

National Provider Identifier

1487629622

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew Reilly Estill

Credential MD

Sex Male

Practice address 1780 Hanshaw Rd, Ithaca, NY, 14850

Phone (607) 257-5858

Fax (607) 257-1718

Enumeration date Feb 21, 2006

Last updated in NPPES Mar 9, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 202366-1 (NY) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD058404L (PA) Secondary

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
0015707040001	Medicaid	PA	-
01636502	Medicaid	NY	-
CC8362	Other	NY	RR MEDICARE GROUP
GU039812	Other	PA	MEDICARE GROUP
110209191	Other	NY	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.

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Frequently asked questions

How do I verify Matthew Estill's NPI record?

Cross-check NPI 1487629622 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1487629622 active?

Yes, as of the latest NPPES snapshot, NPI 1487629622 is active (record last updated 2021-03-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-09.