Patrick R Duffy Jr., M.D.

Patrick R Duffy Jr. is a Orthopaedic Surgery Physician provider (Orthopaedic Surgery) practicing in Prospect, CT, registered in the NPPES registry with NPI 1912905621 since 2005. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1912905621
Entity type	Individual (Type 1)
Name	Patrick R Duffy Jr.
Credential	M.D.
Sex	Male
Practice address	Prospect, CT, 06712
Phone	2037583163
Fax	2037586021
Enumeration date	2005-07-07
Last updated in NPPES	2017-03-30

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207X00000X	Orthopaedic Surgery Physician	Primary	027466	CT

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
201767500	Other	CT	UNITED HEALTH CARE
001274662	Medicaid	CT	—
P00209083	Other	CT	RR MEDICARE
010027466CT03	Other	CT	ANTHEM BCBS NON PAR (LLC)
P1125487	Other	CT	OXFORD HEALTHPLANS

Copy-ready billing details

Provider: Patrick Duffy, M.D.
NPI: 1912905621
Taxonomy: 207X00000X (Orthopaedic Surgery Physician)
Address: Prospect, CT, 06712

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1811999568	Michael D'Aquila	Individual	Physical Therapist	Prospect, CT
1659340198	Terri Dvorkin	Individual	Nurse Practitioner	Prospect, CT
1588633036	Carlos Almeida	Individual	Internal Medicine Physician	Prospect, CT
1083683544	James Uberti	Individual	Internal Medicine Physician	Prospect, CT
1447219571	Alexander Alvarez	Individual	Internal Medicine Physician	Prospect, CT
1609835735	John Testa	Individual	Internal Medicine Physician	Prospect, CT
1730141730	Amy Tso	Individual	Ophthalmology Physician	Prospect, CT
1649232281	Richard Katzin	Individual	Ophthalmology Physician	Prospect, CT

Verify this record

Cross-check NPI 1912905621 against the authoritative CMS record: view Patrick R Duffy Jr. on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Patrick Duffy practice?

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

What is the NPI number for Patrick Duffy?

The National Provider Identifier (NPI) for Patrick Duffy is 1912905621, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2017-03-30.