Gerald Marc Segal, M.D.
Hematology & Oncology Physician · Portland, OR
Gerald Marc Segal, M.D. is a hematology & oncology physician with a practice address in Portland, Oregon, and NPI 1942203534, issued on May 27, 2005. Check the license (Oregon MD14774, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gerald Marc Segal
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD14774 OR
Self-reported in NPPES; status is on the state search - Practice location
- 265 N Broadway St, Portland, OR 97227
- Phone
- (503) 280-1223
- Enumerated
- May 27, 2005
- Record last updated
- Jan 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (503) 528-5252
- Medicaid IDs
- 171454 OR
1022695 WA - Medicare enrollment
- Enrolled (PECOS I20100210000453); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1979
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 138 in Oregon → Look up another NPI →
Also registered at 265 N Broadway St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Christiansen, P.A.Surgical Physician Assistant1851394878
- Lisa Clark, FNPFamily Nurse Practitioner1942276282
- Nicolaas De Wette, M.D.Radiation Oncology Physician1689677692
- Tony Ho, MDHematology & Oncology Physician1417949124
- Angela Kalisiak, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1386647147
- Jody Kujovich, MDHematology & Oncology Physician1972562809
Verify Gerald Marc Segal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD14774Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,313 Medicare Part D claims for 142 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Acyclovir209 claims
- Eliquis90 claims
- Revlimid49 claims
- Pegasys41 claims
- Hydroxyurea40 claims
- Folic Acid38 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Northwest Cancer Specialists PCVancouver, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gerald Marc Segal among 138 hematology & oncology physician records in Oregon
Gerald Marc Segal, M.D. is one of 138 hematology & oncology physician records with a practice address in Oregon. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 82% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1979 · median 2001 among the 97 with a school on file
- Record last updated2012 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Oregon
There are 138 hematology & oncology physician records in Oregon.
All 138 in Oregon → Every provider in Portland → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Christine Barnett, M.D.Portland, OR 972271679772743
- Punprapai BoriboonsomsinPortland, OR 972271114176856
- Daniel Da Graca, M.D.Portland, OR 972271659534527
- Robert Ellis, DOPortland, OR 972271972729044
- Tony Ho, MDPortland, OR 972271417949124
- Jody Kujovich, MDPortland, OR 972271972562809
- Jason Mann, MD,MPHPortland, OR 972271194837419
- Abdul Hai Mansoor, MDPortland, OR 972271790934149
Common questions
What is Gerald Marc Segal, M.D.'s NPI number?
Gerald Marc Segal, M.D.'s National Provider Identifier (NPI) is 1942203534, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gerald Marc Segal, M.D. located?
The NPPES record lists a practice address at 265 N Broadway St, Portland, OR, 97227. Phone: (503) 280-1223. Providers update this record themselves, so call before visiting.
How can I verify Gerald Marc Segal, M.D.'s license?
NPPES lists Oregon license number MD14774, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gerald Marc Segal, M.D. prescribe under Medicare Part D?
In 2024, Gerald Marc Segal, M.D. had 1,313 Medicare Part D claims for 142 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Gerald Marc Segal, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.