Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lewis S Hays, M.D.

Q: What is the NPI number for Lewis Hays?

The National Provider Identifier (NPI) for Lewis Hays is 1619070711, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Lynn, MA · enumerated 2006.

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

National Provider Identifier

1619070711

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Registry record

Entity type Individual (Type 1)

Name Dr. Lewis S Hays

Credential M.D.

Sex Male

Practice address 210 Market St, All Care Hospice, Lynn, MA, 01901

Phone (781) 244-1192

Fax (781) 598-3571

Enumeration date Sep 6, 2006

Last updated in NPPES May 7, 2015

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 48518 (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
0174904	Medicaid	MA	-
0400838	Other	MA	EVERCARE
486977001	Other	MA	CIGNA
048518	Other	MA	TUFTS
64221	Other	MA	HCHP (HARVARD COMM. H.P.)
2075306	Other	MA	AETNA
110123848	Other	MA	RAILROAD MEDICARE
D31053	Other	MA	BLUE CROSS BLUE SHIELD

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 Lewis Hays practice?

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

What is the NPI number for Lewis Hays?

The National Provider Identifier (NPI) for Lewis Hays is 1619070711, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

All Care Visiting Nurse Association of Greater Lynn Inc. Home Health Agency · Lynn, MA NPI 1386640597 All Care Hospice Inc. Community Based Hospice Care Agency · Lynn, MA NPI 1750387981 All Care Resources, Inc. Home Health Aide · Lynn, MA NPI 1215936273 All Care Hospice Inc Internal Medicine Physician · Lynn, MA NPI 1528504651 Susan Gigliotti Clinical Social Worker · Lynn, MA NPI 1225510803

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-07.