Gregory Treharne, M.D.
NPI 1972875763 · Radiation Oncology Physician · Pottsville, PA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Treharne, M.D. is a Radiation Oncology Physician provider in Pottsville, PA (NPI 1972875763).
Provider details
- NPI number
- 1972875763
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 336102126 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,958 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 867 | $42 |
| Calculation of Radiation Therapy Dose77300 | 276 | $31 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 213 | $181 |
| Design and Construction of Complex Radiation Treatment Device77334 | 144 | $57 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 101 | $62 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 82 | $34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$681 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 2614 W Jefferson StJoliet, IL 60435-6433Phone: (630) 734-9560Fax: (630) 734-9565
- 2614 W Jefferson StJoliet, IL 60435-6433Phone: (630) 734-9560Fax: (630) 734-9565
Registry dates
- Enumerated
- 2012-02-08
- Last updated
- 2020-08-28
- Certified
- 2020-08-28
Frequently asked questions
- What is Gregory Treharne's NPI number?
- Gregory Treharne's National Provider Identifier (NPI) is 1972875763, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Treharne's specialty?
- Gregory Treharne is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Treharne located?
- Gregory Treharne's practice location on file with NPPES is 100 One Norwegian Plaza, Pottsville, PA 17901-6029.
- What is Gregory Treharne's phone number?
- The practice phone number listed in the NPPES registry for Gregory Treharne is (570) 622-8500.
- Does Gregory Treharne accept Medicare?
- Gregory Treharne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Treharne's NPI active?
- Yes — Gregory Treharne's NPI (1972875763) is active in the NPPES registry as of the last update on 2020-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.