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

Sophia V Leonida, MD

Pediatrics Physician in Fairfield, CT · enumerated 2006.

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

National Provider Identifier

1700821816

Verified

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Registry record

Entity type Individual (Type 1)

Name Sophia V Leonida

Credential MD

Sex Female

Practice address Fairfield, CT, 06825

Phone (203) 375-9350

Fax (203) 375-8013

Enumeration date Jun 20, 2006

Last updated in NPPES Mar 17, 2015

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

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 023160 (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
061152058	Other	CT	PHCS
0040556	Other	CT	U.S. HEALTH CARE
010023160CT05	Other	CT	BLUE CROSS BLUE SHIELD
061152058	Other	CT	HEALTH SOURCE
114485	Other	CT	PREFERRED ONE
2173536	Other	CT	AETNA
01023160	Other	CT	CIGNA HEALTH PLANS
114485	Other	CT	YALE PREFERRED HEALTH
061152058	Other	CT	HMO
061152058	Other	CT	UNITED HEALTH CARE
7530584100	Other	CT	CONNECTICARE
00123160400	Other	CT	BLUE CARE FAMILY PLAN
001231604	Medicaid	CT	-
061152058	Other	CT	COMMERCIAL INSURANCE
061152058	Other	CT	HEALTH CHOICE
061152058	Other	CT	MED SPAN
ZP060	Other	CT	OXFORD HEALTH PLAN
061152058	Other	CT	HEALTH CARE VALUEMANAGMET

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 Sophia Leonida?

The National Provider Identifier (NPI) for Sophia Leonida is 1700821816, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sophia Leonida practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-03-17.