Quick answers
- Does Steven Tsistrakis accept Medicare assignment?
- Yes. Medicare's clinician data says Steven Tsistrakis 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 Steven Tsistrakis see?
- In 2024, CMS data shows 509 Original Medicare patients and 965 services for Steven Tsistrakis. This counts Original Medicare only and measures volume, not quality.
- What is Steven Tsistrakis's NPI number?
- 1992168389. 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 Steven Tsistrakis, 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 patients | 509 |
|---|---|
| Services billed to Medicare | 965 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)294 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)177 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)120 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)99 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)78 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 cholesterol75%
- High blood pressure66%
- Arthritis47%
- Anxiety31%
- Depression27%
- Diabetes23%
Hospitals where Steven Tsistrakis works
Medicare's Facility Affiliation Data lists Steven Tsistrakis 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.
- Androscoggin Valley HospitalBerlin, NH · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 301310
- Catholic Medical CenterManchester, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300034
- Elliot HospitalManchester, NH · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 300012
- Parkland Medical CenterDerry, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300017
Practice locations
Addresses where Steven Tsistrakis is enrolled with Medicare (CMS data updated October 2, 2026).
- 160 S River Rd, Suite 2300Bedford, NH 03110 (603) 432‑8802
- 49 Range Rd, Suite 109Windham, NH 03087 (603) 432‑8802
- 6 Old Fremont RdRaymond, NH 03077 (603) 432‑8802
Group practices
Medicare enrollment lists Steven Tsistrakis as a member of this group (CMS data updated October 2, 2026).
- Granite State Gastrointestinal Consultants PLLC6 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Bedford
Clinicians with the same Medicare primary specialty in Bedford, NH — not a recommendation.
Other clinicians in Granite State Gastrointestinal Consultants PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2016 (10 years since medical school) |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1992168389 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians