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GREGORY THOMAS O'CONOR JR. M.D.
NPI 1285602680
Internal Medicine - Hematology & Oncology in Lancaster, PA

Active since March 10, 2006
2106 HARRISBURG PIKE, SUITE 116, LANCASTER, PA 17601(717) 544-3600(717) 544-3604 Get Directions Write a Review

NPPES record last updated: February 1, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Gregory Thomas O'conor Jr. M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGORY THOMAS O'CONOR JR. M.D. (NPI 1285602680) is an individual hematology & oncology provider in Lancaster, Pennsylvania, licensed in Pennsylvania (MD022623E) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1285602680
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameGREGORY THOMAS O'CONOR JR.Credential: M.D.
Location Address2106 HARRISBURG PIKE, SUITE 116Lancaster, PA 17601-2644
Mailing Address2106 Harrisburg Pike, Suite 116Lancaster, PA 17601-2644 · (717) 544-3600 · Fax (717) 544-3604
Phone(717) 544-3600
Fax(717) 544-3604
Sole ProprietorNo
Enumeration DateMarch 10, 2006
Last NPPES UpdateFebruary 1, 2010
✔ NPI 1285602680 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in PA · MD022623E
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
2106 HARRISBURG PIKE, Lancaster, PA 17601
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Other Identifiers 10

Other01492302PA · Capital Blue Cross
Medicare UPINB34801PA
Other4376018PA · Aetna Non-hmo
Medicaid0009655880002PA
OtherB34801PA · Health Assurance
Medicare PIN067752EZRPA
Other532391PA · Aetna Hmo
Other29892 4336PA · Geisinger Health Plan
Other1518640PA · Gateway Health Plan
Other067752PA · Highmark Blue Shield

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ROBERT D HONG M.D.
Urology
2106 HARRISBURG PIKE, SUITE 200
LANCASTER, PA 17601
Lancaster County (717) 393-1771
DR. CHRISTOPHER ARNOLD WOODARD M.D.
Urology
2106 HARRISBURG PIKE, SUITE 200
LANCASTER, PA 17601
Lancaster County (717) 393-1771
DAVID A SVETEC MD
Urology
2106 HARRISBURG PIKE, SUTE 200
LANCASTER, PA 17601
Lancaster County (717) 393-1771
GLORIA JEAN CISSNE CRNP
Nurse Practitioner (Pediatrics)
2106 HARRISBURG PIKE, SUITE 1
LANCASTER, PA 17601
Lancaster County (717) 291-5931
DR. JOSEPH M KONTRA M.D.
Internal Medicine (Infectious Disease)
2106 HARRISBURG PIKE, SUITE 301
LANCASTER, PA 17601
Lancaster County (717) 544-3517
JILL F HIGH M.D.
Pediatrics
2106 HARRISBURG PIKE, SUITE 1
LANCASTER, PA 17601
Lancaster County (717) 291-5931
MARY ELIZABETH DEPOE CRNP
Nurse Practitioner (Pediatrics)
2106 HARRISBURG PIKE, SUITE 1
LANCASTER, PA 17601
Lancaster County (717) 291-5931
WILLIAM R.A. BOBEN JR. M.D.
Pediatrics
2106 HARRISBURG PIKE, SUITE 1
LANCASTER, PA 17601
Lancaster County (717) 291-5931

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory O'conor's NPI number?

The NPI number for Gregory O'conor is 1285602680. It was assigned to this individual provider in the NPPES registry on March 10, 2006.

Where is Gregory O'conor located?

Gregory O'conor practices at 2106 Harrisburg Pike Suite 116, Lancaster, PA 17601. The listed phone number is (717) 544-3600.

What is Gregory O'conor's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Gregory O'conor was last updated on February 1, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.