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Hematology/Oncology

Jehanzeb Riaz, MD

Works at hospitals in Tulsa, OK · McAlester, OK · Lovington, NM … · Oklahoma, New Mexico

Summary

Dr. Jehanzeb Riaz, MD is a hematologist-oncologist at 1 E Clark Bass Blvd, McAlester, OK 74501. Phone: (918) 421-6987. Accepts Medicare assignment. In 2024, Jehanzeb Riaz had 479 Original Medicare patients and 119,612 services. NPI 1205130218. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Jehanzeb Riaz, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jehanzeb Riaz accept Medicare assignment?
Yes. Medicare's clinician data says Jehanzeb Riaz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Jehanzeb Riaz see?
In 2024, CMS data shows 479 Original Medicare patients and 119,612 services for Jehanzeb Riaz. This counts Original Medicare only and measures volume, not quality.
What is Jehanzeb Riaz's NPI number?
1205130218. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Jehanzeb Riaz, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients479
Services billed to Medicare119,612
Different services or procedures76
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (Q0138)27,540 services
  2. Injection, fosaprepitant, 1 mg (J1453)10,500 services
  3. Injection, ferric derisomaltose, 10 mg (J1437)6,800 services
  4. Injection, dexamethasone sodium phosphate, 1 mg (J1100)1,136 services
  5. Injection, palonosetron hcl, 25 mcg (J2469)781 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis51%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)46%
  • Diabetes42%
  • Chronic kidney disease41%

Hospitals where Jehanzeb Riaz works

Medicare's Facility Affiliation Data lists Jehanzeb Riaz at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Jehanzeb Riaz is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Jehanzeb Riaz as a member of these groups (CMS data updated October 2, 2026).

  • OU Health Partners Inc1,184 clinicians in the group
  • Northeastern Health System103 clinicians in the group
  • McAlester Regional Health Center Authority45 clinicians in the group
  • Oklahoma Cancer and Blood Specialists LLC11 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Oklahoma →

Other hematologist-oncologists in Oklahoma

Clinicians with the same Medicare primary specialty in Oklahoma — not a recommendation.

All hematologist-oncologists in Oklahoma →

Other clinicians in OU Health Partners Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1205130218
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians