Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jennifer Byer, MD

Medical Oncology Physician in Weymouth, MA · enumerated 2011.

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

National Provider Identifier

1336438522

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Registry record

Entity type Individual (Type 1)

Name Jennifer Byer

Credential MD

Sex Female

Practice address 101 Columbian St, Weymouth, MA, 02190

Phone (781) 624-4800

Enumeration date Mar 29, 2011

Last updated in NPPES Mar 9, 2026

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License ME120152 (FL) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 1025561 (MA) Primary

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License ME120152 (FL) 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
021232200	Medicaid	FL	-

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 Jennifer Byer?

The National Provider Identifier (NPI) for Jennifer Byer is 1336438522, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jennifer Byer practice?

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

Other providers at this practice address

Browse all →

Suniti Nimbkar Surgery Physician · South Weymouth, MA NPI 1144290800 William Powlis Radiation Oncology Physician · South Weymouth, MA NPI 1083656771 Anne Roberge Hematology & Oncology Physician · Weymouth, MA NPI 1639115041 Lynda Clancy Obstetrics & Gynecology Nurse Practitioner · Weymouth, MA NPI 1245261759 Rosemary Joyce Obstetrics & Gynecology Nurse Practitioner · Weymouth, MA NPI 1427089721 Reve Shields Hematology & Oncology Physician · South Weymouth, MA NPI 1871719187 Shail Maingi Hematology & Oncology Physician · South Weymouth, MA NPI 1114183795 Harbor Medical Associates, Inc. Diagnostic Radiology Physician · S. Weymouth, MA NPI 1689909723

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-09.