Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Margaret R Wacks, M.D.

Anatomic Pathology & Clinical Pathology Physician in Framingham, MA · enumerated 2006.

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

National Provider Identifier

1174587968

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Registry record

Entity type Individual (Type 1)

Name Dr. Margaret R Wacks

Credential M.D.

Sex Female

Practice address 115 Lincoln St, Metrowest Medical Center, Framingham, MA, 01702

Phone (508) 383-1091

Fax (508) 820-9654

Enumeration date Apr 17, 2006

Last updated in NPPES Mar 17, 2010

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 31147 (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
2066033	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 specialty is Margaret Wacks?

Margaret Wacks is registered in NPPES with the primary taxonomy of Anatomic Pathology & Clinical Pathology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-17.