George Semeniuk, M.D.
NPI 1316022924 · Hematology & Oncology Physician · Newport Beach, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
George Semeniuk, M.D. is a Hematology & Oncology Physician provider in Newport Beach, CA (NPI 1316022924).
Provider details
- NPI number
- 1316022924
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A61824 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,983 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 1,335 | $188 |
| 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 | 555 | $18 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 446 | $16 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 313 | $153 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 276 | $18 |
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician Or |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 74 | 19 |
| Apixabanbrand: Eliquis | 72 | 12 |
| Levothyroxine Sodium | 60 | 13 |
| Gabapentin | 51 | 11 |
| Ondansetron Hcl | 34 | 19 |
| Acalabrutinib Maleatebrand: Calquence | 30 | — |
| Famotidine | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$109,256 across 34 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
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2021-09-23
- Certified
- 2021-09-23
Frequently asked questions
- What is George Semeniuk's NPI number?
- George Semeniuk's National Provider Identifier (NPI) is 1316022924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is George Semeniuk's specialty?
- George Semeniuk is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is George Semeniuk located?
- George Semeniuk's practice location on file with NPPES is 1601 Avocado Ave, Newport Beach, CA 92660-7798.
- What is George Semeniuk's phone number?
- The practice phone number listed in the NPPES registry for George Semeniuk is (949) 763-2204.
- Does George Semeniuk accept Medicare?
- George Semeniuk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is George Semeniuk's NPI active?
- Yes — George Semeniuk's NPI (1316022924) is active in the NPPES registry as of the last update on 2021-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.