Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Goslyn Rheuben Sylvan Jr., M.D.

Internal Medicine Physician in Lawrence, MA · enumerated 2006 · practices at Mass General Brigham Community Physicians Inc..

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

National Provider Identifier

1851341861

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Registry record

Entity type Individual (Type 1)

Name Dr. Goslyn Rheuben Sylvan Jr.

Credential M.D.

Sex Male

Practice address 500 Merrimack St, Lawrence, MA, 01843

Phone (978) 557-8900

Fax (978) 557-8856

Enumeration date May 11, 2006

Last updated in NPPES Nov 20, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 227335 (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
1851341861	Other	MA	AETNA HMO
060030	Other	MA	TUFTS
2129213	Medicaid	MA	-
04-34240	Other	MA	EVERCARE
30206616	Other	NH	NH MEDICAID
110075219A	Other	MA	MASS HEALTH
J41248	Other	MA	BLUE CROSS BLUE SHIELD
P00983242	Other	MA	RAILROAD MEDICARE
1851341861	Other	MA	FALLON COMMUNITY HEALTH PLAN
7057935	Other	MA	AETNA NON HMO
0040560	Other	MA	NEIGHBORHOOD HEALTH PLAN
AA79528	Other	MA	HARVARD PILGRIM HEALTHCAR
495605	Other	MA	TUFTS
959730-01	Other	MA	NETWORK HEALTH

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 Goslyn Sylvan practice?

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

What is the NPI number for Goslyn Sylvan?

The National Provider Identifier (NPI) for Goslyn Sylvan is 1851341861, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Bruce Birkby Allergy & Immunology Physician · Lawrence, MA NPI 1932103298 Thomas Fazio Gastroenterology Physician · Lawrence, MA NPI 1902800832 Richard Goldman Cardiovascular Disease Physician · Lawrence, MA NPI 1578567434 Karen Mello Infectious Disease Physician · Lawrence, MA NPI 1992700934 Miroslawa Skorupka Internal Medicine Physician · Lawrence, MA NPI 1558366351 Drew Niccolini Gastroenterology Physician · Lawrence, MA NPI 1639174410 Jane Thompson Internal Medicine Physician · Lawrence, MA NPI 1194720904 Joann Furlong Adult Health Nurse Practitioner · Lawrence, MA NPI 1699771444

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-20.