Quick answers
- Does Hassan A. Hassan accept Medicare assignment?
- Yes. Medicare's clinician data says Hassan 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 Hassan A. Hassan see?
- In 2024, CMS data shows 335 Original Medicare patients and 531 services for Hassan A. Hassan. This counts Original Medicare only and measures volume, not quality.
- What is Hassan A. Hassan's NPI number?
- 1154313377. 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 Hassan 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 patients | 335 |
|---|---|
| Services billed to Medicare | 531 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Biopsy of large bowel using a flexible endoscope (45380)120 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)113 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)59 services
- Colorectal cancer screening; colonoscopy on individual at high risk (G0105)58 services
- Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)57 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 cholesterol74%
- Arthritis39%
- Diabetes36%
- Depression15%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)14%
Hospitals where Hassan A. Hassan works
Medicare's Facility Affiliation Data lists Hassan 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.
- Riverside Regional Medical CenterNewport News, VA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 490052
- Sentara Careplex HospitalHampton, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490093
- Sentara Obici HospitalSuffolk, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490044
Practice locations
Addresses where Hassan A. Hassan is enrolled with Medicare (CMS data updated October 2, 2026).
- 303 Butler Farm Rd, Suite 103Hampton, VA 23666 (757) 826‑3434
Group practices
Medicare enrollment lists Hassan A. Hassan as a member of this group (CMS data updated October 2, 2026).
- Hampton Roads Gastroenterology PC10 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Hampton
Clinicians with the same Medicare primary specialty in Hampton, VA — not a recommendation.
Other clinicians in Hampton Roads Gastroenterology PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154313377 |
| 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