Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Bill A. Tsikitas, M.D.

Internal Medicine Physician in South Weymouth, MA · enumerated 2006.

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

National Provider Identifier

1407827033

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Registry record

Entity type Individual (Type 1)

Name Dr. Bill A. Tsikitas

Credential M.D.

Sex Male

Practice address 55 Fogg Rd, Hospitalist Program, South Weymouth, MA, 02190

Phone (781) 340-8744

Fax (781) 682-5627

Enumeration date Jan 31, 2006

Last updated in NPPES Apr 17, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 158826 (NY) Primary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 158826 (NY) 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
00838486	Medicaid	NY	-

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

Where does Bill Tsikitas practice?

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

What is the NPI number for Bill Tsikitas?

The National Provider Identifier (NPI) for Bill Tsikitas is 1407827033, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Joseph Lenehan Plastic and Reconstructive Surgery Physician · South Weymouth, MA NPI 1699773135 Joseph M. Lenehan MD PC Plastic and Reconstructive Surgery Physician · South Weymouth, MA NPI 1750389664 Michael Ennis Certified Registered Nurse Anesthetist · Weymouth, MA NPI 1346241288 Richard Mirel Endocrinology, Diabetes & Metabolism Physician · Weymouth, MA NPI 1437150174 Matthew Weiss Critical Care Medicine (Internal Medicine) Physician · South Weymouth, MA NPI 1205829967 Michael Hayes Neurology Physician · South Weymouth, MA NPI 1689663338 Troy Demasters Physician Assistant · Weymouth, MA NPI 1427048891 Clifford Breslow Anesthesiology Physician · South Weymouth, MA NPI 1639169758

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-17.