Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

S Lawson Derby, M.D.

Cardiovascular Disease Physician in Beverly, MA · enumerated 2006.

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

National Provider Identifier

1841215522

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Registry record

Entity type Individual (Type 1)

Name S Lawson Derby

Credential M.D.

Sex Male

Practice address 77 Herrick St, Ste 101 Medical Group Inc, Beverly, MA, 01915

Phone (978) 927-4110

Fax (978) 232-7057

Enumeration date Jul 13, 2006

Last updated in NPPES Sep 24, 2013

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 216949 (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
2031400	Medicaid	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

What is the NPI number for S Lawson Derby?

The National Provider Identifier (NPI) for S Lawson Derby is 1841215522, a Type 1 (individual) record in the CMS NPPES registry.

Where does S Lawson Derby practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-24.