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

Thomas M Oconnor, DO

Individual provider Surgery Physician · NPI 1144213992

Thomas M Oconnor, DO is a Vascular Surgery in Lancaster, Pennsylvania. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 1987, 39 years ago. Practices with Lancaster General Medical Group, a 582-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
39
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
PA
In the registry since
2005
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

2102 Harrisburg Pike
Lancaster, PA 17601-2644
Phone: (717) 544-9400
Fax: (717) 544-9401
Show map & directions

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

Specialties & licences

Vascular Surgery Physician (primary) Taxonomy 2086S0129X · Licence OS009572L (PA)
Surgery Physician Taxonomy 208600000X · Licence OS009572L (PA)

Record details

NPI number1144213992
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 26, 2005
Last updated in NPPESJune 6, 2025
Certification dateJune 6, 2025
Mailing address2102 Harrisburg Pike, Lancaster, PA 17601-2644

Medicare enrollment

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

Medicare specialtyVASCULAR SURGERY
Also practisesGENERAL SURGERY, THORACIC SURGERY
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 1987 (39 years in practice)
Group practice Lancaster General Medical Group — 582 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations15 on file with Medicare

Other providers in Lancaster