Peter Byeff, MD
NPI 1710979463 · Hematology & Oncology Physician · Southington, CT
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Byeff, MD is a Hematology & Oncology Physician provider in Southington, CT (NPI 1710979463).
Provider details
- NPI number
- 1710979463
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 023371 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
943 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 258 | $100 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 243 | $100 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 133 | $17 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 120 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 134 | 23 |
| Apixabanbrand: Eliquis | 65 | 17 |
| Potassium Chloride | 57 | 25 |
| Lenalidomidebrand: Revlimid | 54 | — |
| Anastrozole | 48 | 15 |
| Hydroxyurea | 34 | — |
| Rivaroxabanbrand: Xarelto | 33 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-18
- Last updated
- 2008-02-25
Frequently asked questions
- What is Peter Byeff's NPI number?
- Peter Byeff's National Provider Identifier (NPI) is 1710979463, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Byeff's specialty?
- Peter Byeff is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Byeff located?
- Peter Byeff's practice location on file with NPPES is 55 Meriden Ave, Southington, CT 06489-3238.
- What is Peter Byeff's phone number?
- The practice phone number listed in the NPPES registry for Peter Byeff is (860) 621-9316.
- Does Peter Byeff accept Medicare?
- Peter Byeff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Byeff's NPI active?
- Yes — Peter Byeff's NPI (1710979463) is active in the NPPES registry as of the last update on 2008-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.