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

Daniel William O'Neill, MD

Individual provider Internal Medicine Physician · NPI 1972578508

Daniel William O'Neill, MD is a Family Practice in Putnam, Connecticut. Graduated from State University of New York at Stony Brook, School of Medicine in 1992, 34 years ago. Practices with Day Kimball Medical Group Inc, a 91-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
34
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
CT
In the registry since
2006
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

7 Kennedy Dr
Putnam, CT 06260-1939
Phone: (860) 928-7704
Fax: (860) 928-4092
Show map & directions

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

Additional practice locations (1)

  • 330 Pomfret St, Putnam, CT 06260-3803 — (860) 928-7704

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036878 (CT)
Family Medicine Physician Taxonomy 207Q00000X · Licence 036878 (CT)

Record details

NPI number1972578508
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 17, 2006
Last updated in NPPESApril 8, 2026
Certification dateApril 8, 2026
Mailing address7 Kennedy Dr, Putnam, CT 06260-1939

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Day Kimball Medical Group Inc — 91 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Putnam