Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Daniel Oneill, MD

Individual provider Orthopaedic Surgery Physician · NPI 1437183886

Daniel Oneill, MD practises Orthopedic Surgery in Plymouth, New Hampshire. Graduated from State University of New York at Stony Brook, School of Medicine in 1983, 43 years ago. Practices with Littleton Hospital Association, a 110-clinician group and accepts Medicare assignment. Licensed in New Hampshire.

Years since qualifying
43
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
NH
In the registry since
2006
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

12 Yeaton Rd Ste C4
Plymouth, NH 03264-3457 Not confirmed with CMS for 10 years — call before visiting
Phone: (603) 536-2270
Fax: (603) 536-2277
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 8013 (NH)

Record details

NPI number1437183886
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESJanuary 15, 2016

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1983 (43 years in practice)
Group practice Littleton Hospital Association — 110 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients70
Services billed 587 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Littleton Hospital Association

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 110 clinicians in the practice; 12 are shown here.

Other providers in Plymouth