Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cesar Eliud Escareno Perez, M.D.

Surgery Physician in Boston, MA · enumerated 2007.

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

National Provider Identifier

1770789992

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Registry record

Entity type Individual (Type 1)

Name Cesar Eliud Escareno Perez

Credential M.D.

Sex Male

Practice address Brigham and Women'S Hospital Surgery, 75 Francis Street, Boston, MA, 02115

Phone (617) 732-6861

Enumeration date Jun 25, 2007

Last updated in NPPES Feb 24, 2016

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 231848 (MA) Secondary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036136270 (IL) 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 specialty is Cesar Escareno Perez?

Cesar Escareno Perez is registered in NPPES with the primary taxonomy of Surgery 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-24.