Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Timothy R. Lynch, MD

Internal Medicine Physician in Norwell, MA · enumerated 2006 · practices at South Shore Medical Center, Inc..

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

National Provider Identifier

1891720892

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Registry record

Entity type Individual (Type 1)

Name Timothy R. Lynch

Credential MD

Sex Male

Practice address 143 Longwater Drive, Norwell, MA, 02061

Phone (781) 878-5200

Fax (781) 878-6750

Enumeration date Jul 11, 2006

Last updated in NPPES Jan 8, 2014

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 71279 (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
95986103	Other	-	NETWORK HEATLH
J10645	Other	MA	BCBS
071279	Other	-	TUFTS AND TMP
042297845	Other	-	UNICARE
4265474	Other	MA	AETNA
042297845	Other	-	UNITED HEALTH CARE
189170892	Medicaid	MA	-
3077764	Medicaid	MA	-
042297845	Other	-	TRICARE
042297845	Other	-	HCVM/FIRST HEALTH
4391781	Other	-	CIGNA
AA283358	Other	-	HARVARD PILGRIM

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 Timothy Lynch's NPI record?

Cross-check NPI 1891720892 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891720892 active?

Yes, as of the latest NPPES snapshot, NPI 1891720892 is active (record last updated 2014-01-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-08.