Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Evangelos Messaris, M.D., PH.D

Colon & Rectal Surgery Physician in Boston, MA · enumerated 2007.

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

National Provider Identifier

1689892481

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Evangelos Messaris

Credential M.D., PH.D

Sex Male

Practice address Boston, MA, 02215

Phone (617) 667-4159

Enumeration date Apr 24, 2007

Last updated in NPPES Sep 5, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License MD440587 (PA) Secondary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License MT197896 (PA) Secondary

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 276936 (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
102617610	Medicaid	PA	-

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

Is NPI 1689892481 active?

Yes, as of the latest NPPES snapshot, NPI 1689892481 is active (record last updated 2018-09-05).

How do I verify Evangelos Messaris's NPI record?

Cross-check NPI 1689892481 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-05.