Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Rebecca Osullivan-Hunnewell, MD

Dermatology Physician in Wellesley, MA · enumerated 2006.

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

National Provider Identifier

1053368324

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Registry record

Entity type Individual (Type 1)

Name Dr. Rebecca Osullivan-Hunnewell

Credential MD

Sex Female

Practice address 332 Washington St, Suite 305, Wellesley, MA, 02481

Phone (781) 237-3233

Fax (781) 237-8113

Enumeration date May 30, 2006

Last updated in NPPES Feb 22, 2013

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 81585 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Rebecca Osullivan-Hunnewell?

The National Provider Identifier (NPI) for Rebecca Osullivan-Hunnewell is 1053368324, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rebecca Osullivan-Hunnewell practice?

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

Other providers at this practice address

Browse all →

Geoffrey Burns Family Medicine Physician · Wellesley Hills, MA NPI 1700873130 Rose King Pediatrics Physician · Wellesley, MA NPI 1720075575 James Stempien Oral and Maxillofacial Surgery (Dentist) · Wellesley, MA NPI 1417947151 Daniel Dyrek Orthopedic Physical Therapist · Wellesley Hills, MA NPI 1730170937 Donald Strack Physical Therapist · Wellesley Hills, MA NPI 1417938333 John Buehler Oral & Maxillofacial Surgery (D.M.D.) · Wellesley, MA NPI 1982685335 Gary Geissler Athletic Trainer · Wellesley, MA NPI 1316929151 Raquel Perlis Physical Therapist · Wellesley Hills, MA NPI 1396721627

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-22.