Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Catharine B Wetzel, NP

Nurse Practitioner in Boston, MA · enumerated 2006.

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

National Provider Identifier

1578623393

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Catharine B Wetzel

Credential NP

Sex Female

Practice address Mass General Hospital, 55 Fruit Street, Boston, MA, 02114

Phone (617) 724-6850

Enumeration date Dec 11, 2006

Last updated in NPPES Apr 14, 2016

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 200630 (MA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

Where does Catharine Wetzel practice?

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

What is the NPI number for Catharine Wetzel?

The National Provider Identifier (NPI) for Catharine Wetzel is 1578623393, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

David Miller Pulmonary Disease Physician · Boston, MA NPI 1336167857 Parag Amin Pediatrics Physician · Boston, MA NPI 1699784736 Sreekanth Chaguturu Internal Medicine Physician · Boston, MA NPI 1689788572 Mary Doran Acute Care Nurse Practitioner · Boston, MA NPI 1710084157 Alice Cort Internal Medicine Physician · Boston, MA NPI 1629127279 Bing-Ni Rong Acupuncturist · Boston, MA NPI 1932243623 Therese Gimler Registered Nurse · Boston, MA NPI 1457487290 Henry Keutmann Endocrinology, Diabetes & Metabolism Physician · Boston, MA NPI 1043400138

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-14.