Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ryan Killian Duffy, MD

Individual provider Orthopaedic Trauma Physician · NPI 1225200215

Ryan Killian Duffy, MD is an Orthopedic Surgery in Concord, New Hampshire. Qualified in 2008, 18 years ago. Practices with Northeast Orthopaedic Alliance PLLC, a 289-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
18
Licensed in
NH
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

264 Pleasant St
Concord, NH 03301-2551
Phone: (603) 224-3368
Fax: (603) 224-7815
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 18315 (NH)
Orthopaedic Trauma Physician Taxonomy 207XX0801X · Licence 18315 (NH)

Record details

NPI number1225200215
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 30, 2008
Last updated in NPPESJanuary 29, 2024
Certification dateJanuary 29, 2024
Mailing address264 Pleasant Street, Concord, NH 03301

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Northeast Orthopaedic Alliance Pllc — 289 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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