Doctor profile · Federal record

Dr. Gregory Treharne, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Pottsville, PA

  • NPI 1972875763
  • Accepts Medicare
  • 16 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
100 One Norwegian Plaza
Pottsville, PA 179016029
(570) 622-8500
fax (570) 622-0261
Additional location
2614 W Jefferson St
Joliet, IL 604356433
(630) 734-9560
fax (630) 734-9565
Mailing address
100 N Academy Ave
Danville, PA 178224903

Credentials & registration

NPPES · NUCC
NPI registered
February 2012 — 14 yrs on file
Profile last updated
August 28, 2020
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (2)
Pennsylvania #MD462891 · Illinois #336102126

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972875763. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,274
Distinct HCPCS
10
Medicare allowed
$176,082
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 960 46 $43
77300 Calculation of radiation therapy dose 303 51 $32
77334 Design and construction of complex radiation treatment device 286 62 $57
77427 Radiation treatment management, 5 treatment sessions 252 59 $184
99213 Established patient office or other outpatient visit, 20-29 minutes 191 150 $63
77263 Complex radiation therapy planning 62 60 $146
99205 New patient office or other outpatient visit, 60-74 minutes 51 51 $171
77338 Design and construction of radiation treatment device for high precision radiation therapy 35 29 $218
77290 Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 33 32 $77
77301 High precision radiation therapy planning 31 29 $406

In context: peer comparison

Among 1 peers in Pottsville Radiation Oncology Physician, average services per provider: 162. This provider delivers 14× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$681
Transactions
3
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Siemens Medical Solutions USA, INC. 3 $681.44

By nature of payment

Travel and Lodging
$518
Food and Beverage
$164

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
23
Patients
0
Total drug cost
$315
Drug Type Claims Patients Total cost
Silver Sulfadiazine Generic 12 0 $166
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 11 0 $148

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Treharne's medical specialty?
Dr. Gregory Treharne practices Radiation Oncology Physician in Pottsville, PA.
Where does Dr. Gregory Treharne practice?
Dr. Gregory Treharne practices at 100 One Norwegian Plaza, Pottsville, PA 179016029. Office phone: 5706228500.
What is Dr. Gregory Treharne's NPI?
Dr. Gregory Treharne's National Provider Identifier (NPI) is 1972875763, issued by NPPES.
Does Dr. Gregory Treharne accept Medicare assignment?
Yes. Dr. Gregory Treharne accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Treharne commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Calculation of radiation therapy dose (HCPCS 77300); Design and construction of complex radiation treatment device (HCPCS 77334). Source: CMS Medicare Physician & Other Practitioners file.