Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Rebecca Suk Heist, MD MPH

Internal Medicine Physician in Boston, MA · enumerated 2006.

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

National Provider Identifier

1184697278

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Registry record

Entity type Individual (Type 1)

Name Dr. Rebecca Suk Heist

Credential MD MPH

Sex Female

Practice address 32 Fruit St, Yawkey 7b, Boston, MA, 02114

Phone (617) 724-4000

Fax (617) 726-0453

Enumeration date Feb 9, 2006

Last updated in NPPES Jan 15, 2026

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 212736 (MA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 212736 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
468219	Other	MA	TUFTS HEALTH PLAN
2104148	Medicaid	MA	-
J28696	Other	MA	BCBS 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 Rebecca Heist?

Rebecca Heist is registered in NPPES with the primary taxonomy of Internal Medicine 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 2026-01-15.