Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jeffrey A Simpson, MD, LLC

Q: What type of organization is Jeffrey A Simpson, MD, LLC?

Jeffrey A Simpson, MD, LLC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).

Obstetrics & Gynecology Physician in New London, CT · enumerated 2007 · authorized official Jeffrey Simpson, Owner.

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

National Provider Identifier

1215140850

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Registry record

Entity type Organization (Type 2)

Legal business name Jeffrey A Simpson, MD, LLC

Practice address 345 Montauk Avenue, New London, CT, 06320

Phone (860) 444-6868

Fax (860) 437-0650

Enumeration date May 8, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 027396 (CT) Primary

Authorized official

Name Jeffrey Simpson

Title Owner

Phone (860) 444-6868

Other identifiers

Identifier	Type	State	Issuer
010027396CT03	Other	CT	DR SIMPSON BC#
1447244504	Other	CT	AMY MARTIN APRN INDVL NPI
40000368CT05	Other	CT	EILEEN O'DONNELL APRN BC#
101886	Other	CT	AMY MARTIN APRN CTCRE#
400001886CT23	Other	CT	AMY MARTIN APRN BC#
764225	Other	CT	DR SIMPSON CTCRE GRP#
789897	Other	CT	DR SIMPSON CTCRE#
1063412542	Other	CT	EILEEN O'DONNELL APRN NPI
1275525156	Other	CT	DR SIMPSON INDVL NPI#

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.

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Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Jeffrey A Simpson, MD, LLC?

Jeffrey A Simpson, MD, LLC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.