NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert L Vanderlin, MD

Obstetrics & Gynecology Physician in Weymouth, MA · enumerated 2005.

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

National Provider Identifier

1336120377

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert L Vanderlin
Credential MD
Sex Male
Practice address 51 Performance Dr, Weymouth, MA, 02189
Phone (781) 682-8000
Fax (781) 335-1412
Enumeration date Nov 8, 2005
Last updated in NPPES Feb 10, 2011

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 49353 (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
042297845 Other MA PRIVATE HEALTHCARE SYSTEM
042297845 Other MA UHC
136225 Other MA HVD PILGRIM HEALTH CARE
6181872 Medicaid MA -
042297845 Other MA UNITED HEALTH CARE
049353 Other MA TUFTS
042297845 Other MA HCVM
042297845 Other MA DOC FIRST
042297845 Other MA TRICARE
34726 Other MA FALLON
4218639 Other MA AETNA
042297845 Other MA GIC UNICARE
042297845 Other MA GREAT WEST HEALTH CARE
J03518 Other MA BCBS
6181872 Other MA NEIGHBORHOOD HLTH PLAN
702028 Other MA TUFTS MEDICARE PREFERRED
B2082201 Other MA CIGNA

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

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Robert Vanderlin?
Robert Vanderlin is registered in NPPES with the primary taxonomy of Obstetrics & Gynecology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-10.