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Gastroenterology

Stephen L. Hasak, MD

Works at hospitals in Albany, NY · Hudson, NY · Watertown, NY … · New York

Summary

Dr. Stephen L. Hasak, MD is a gastroenterologist at 47 New Scotland Ave, Albany, NY 12208. Phone: (518) 262-5633. Accepts Medicare assignment. In 2024, Stephen L. Hasak had 533 Original Medicare patients and 1,552 services. NPI 1184063562. 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 Stephen L. Hasak, 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 Stephen L. Hasak accept Medicare assignment?
Yes. Medicare's clinician data says Stephen L. Hasak 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 Stephen L. Hasak see?
In 2024, CMS data shows 533 Original Medicare patients and 1,552 services for Stephen L. Hasak. This counts Original Medicare only and measures volume, not quality.
What is Stephen L. Hasak's NPI number?
1184063562. 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 Stephen L. Hasak, 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 patients533
Services billed to Medicare1,552
Different services or procedures75
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (43264)131 services
  2. Review by radiologist of image from tube placement into bile duct using an endoscope (74328)127 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)127 services
  4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)115 services
  5. Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth (43237)106 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%
  • Arthritis42%
  • Ischemic heart disease41%
  • Diabetes34%
  • Anxiety33%

Hospitals where Stephen L. Hasak works

Medicare's Facility Affiliation Data lists Stephen L. Hasak 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.

  • Albany Medical Center HospitalAlbany, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330013
  • Columbia Memorial HospitalHudson, NY · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 330094
  • Samaritan Medical CenterWatertown, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330157
  • Saratoga HospitalSaratoga Springs, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330222

Practice locations

Addresses where Stephen L. Hasak is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Stephen L. Hasak as a member of this group (CMS data updated October 2, 2026).

  • Albany Medical College1,056 clinicians in the group

Specialties

Find other Gastroenterology doctors in New York →

Other gastroenterologists in Albany

Clinicians with the same Medicare primary specialty in Albany, NY — not a recommendation.

All gastroenterologists in Albany →

Other clinicians in Albany Medical College

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

Clinician information

CredentialMD
Medical schoolAlbany Medical College Of Union University
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1184063562
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