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Hematology/Oncology

Amy A. Hassan, MD

Works at hospitals in League City, TX · Texas

Summary

Dr. Amy A. Hassan, MD is a hematologist-oncologist at 1515 Holcombe Blvd, Houston, TX 77030. Phone: (713) 794-5446. Accepts Medicare assignment. In 2024, Amy A. Hassan had 246 Original Medicare patients and 518 services. NPI 1356566871. 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.

  • Specialty: Hematologist-oncologist (Medicare lists Hematology/Oncology)
  • Address: 1515 Holcombe Blvd, Houston, TX 77030 · Directions
  • Phone: (713) 794‑5446
  • Medicare: Accepts Medicare assignment
  • Hospital: UTMB Health League City Campus Hospital
  • Group practice: Physicians Referral Service
  • Medical school: Baylor College Of Medicine · graduated 2001 (25 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Amy A. Hassan, 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 Amy A. Hassan accept Medicare assignment?
Yes. Medicare's clinician data says Amy A. Hassan 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 Amy A. Hassan see?
In 2024, CMS data shows 246 Original Medicare patients and 518 services for Amy A. Hassan. This counts Original Medicare only and measures volume, not quality.
What is Amy A. Hassan's NPI number?
1356566871. 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 Amy A. Hassan, 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 patients246
Services billed to Medicare518
Different services or procedures12
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)325 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)70 services
  3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)54 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)18 services
  5. Telephone medical discussion with physician, 5-10 minutes (99441)16 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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
  • High cholesterol68%
  • Arthritis46%
  • Anxiety32%
  • Diabetes28%

Hospitals where Amy A. Hassan works

Medicare's Facility Affiliation Data lists Amy A. Hassan 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 Amy A. Hassan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Amy A. Hassan as a member of this group (CMS data updated October 2, 2026).

  • Physicians Referral Service2,765 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Texas →

Other hematologist-oncologists in Houston

Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.

All hematologist-oncologists in Houston →

Other clinicians in Physicians Referral Service

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

Clinician information

CredentialMD
Medical schoolBaylor College Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1356566871
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