Gerald Segal, M.D.
NPI 1942203534 · Hematology & Oncology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerald Segal, M.D. is a Hematology & Oncology Physician provider in Portland, OR (NPI 1942203534).
Provider details
- NPI number
- 1942203534
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD14774 (OR)
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
21 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
6,389 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) |
|---|---|---|
| Gammaglobulin (immune System Protein) Measurement82784 | 1,065 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 809 | $8 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 681 | $10 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 654 | $9 |
| Lactate Dehydrogenase (enzyme) Level83615 | 626 | $6 |
| Nephelometry, Test Method Using Light83883 | 488 | $13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 209 | 41 |
| Apixabanbrand: Eliquis | 90 | 18 |
| Lenalidomidebrand: Revlimid | 49 | — |
| Peginterferon Alfa-2abrand: Pegasys | 41 | — |
| Hydroxyurea | 40 | — |
| Folic Acid | 38 | 13 |
| Pomalidomidebrand: Pomalyst | 35 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-27
- Last updated
- 2012-01-18
Frequently asked questions
- What is Gerald Segal's NPI number?
- Gerald Segal's National Provider Identifier (NPI) is 1942203534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Segal's specialty?
- Gerald Segal is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald Segal located?
- Gerald Segal's practice location on file with NPPES is 265 N Broadway St, Portland, OR 97227-1800.
- What is Gerald Segal's phone number?
- The practice phone number listed in the NPPES registry for Gerald Segal is (503) 280-1223.
- Does Gerald Segal accept Medicare?
- Gerald Segal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerald Segal's NPI active?
- Yes — Gerald Segal's NPI (1942203534) is active in the NPPES registry as of the last update on 2012-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.