Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ben Matthews Willwerth Jr., MD

Pediatrics Physician in Braintree, MA · enumerated 2006.

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

National Provider Identifier

1174572689

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Registry record

Entity type Individual (Type 1)

Name Ben Matthews Willwerth Jr.

Credential MD

Sex Male

Practice address 340 Wood Road, Suite 301, Braintree, MA, 02184

Phone (781) 356-6200

Fax (781) 356-6299

Enumeration date May 10, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 156918 (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
AA1447	Other	MA	HARVARD PILGRIM
J22035	Other	MA	BLUE CROSS
156918	Other	MA	TUFTS
3205754	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.

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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 Ben Willwerth?

Ben Willwerth is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Richard Black Internal Medicine Physician · Braintree, MA NPI 1669473955 Lynne Roddy Social Worker · Braintree, MA NPI 1891761359 Sheryl Shapiro Psychologist · Braintree, MA NPI 1477529923 Slavenka Milutin Psychiatry Physician · Braintree, MA NPI 1891762969 Milton Pediatric Associates LLC Pediatrics Physician · Braintree, MA NPI 1013986694 New England Pain Associates, PC Ambulatory Surgical Clinic/Center · Braintree, MA NPI 1598096273

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.