NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John M Dasilva, M.D.

Surgery Physician in Glastonbury, CT · enumerated 2006 · practices at Collins Surgical Associates, P.C..

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

National Provider Identifier

1568475051

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. John M Dasilva
Credential M.D.
Sex Male
Practice address 300 Hebron Ave Ste 211, Glastonbury, CT, 06033
Phone (860) 522-1024
Fax (860) 278-4613
Enumeration date Aug 14, 2006
Last updated in NPPES Mar 8, 2021

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 027296 (CT) 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
0528373 Other CT AETNA
010027296CT03 Other CT ANTHEM BLUE CROSS
0P0272 Other CT HEALTH NET
0528373 Other CT US HEALTHCARE
1272962 Medicaid CT -
01027296 Other CT CIGNA
060886963 Other CT UNITED HEALTHCARE
00127296200 Other CT BLUE CARE FAMILY PLAN
786963 Other CT CONNECTICARE
HAS500 Other CT OXFORD

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 John Dasilva practice?
The practice location on file with NPPES is in Glastonbury, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Dasilva?
The National Provider Identifier (NPI) for John Dasilva is 1568475051, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-08.