Quick answers
- Does Leonard G. Quallich Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Leonard G. Quallich Iii 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 Leonard G. Quallich Iii see?
- In 2024, CMS data shows 465 Original Medicare patients and 861 services for Leonard G. Quallich Iii. This counts Original Medicare only and measures volume, not quality.
- What is Leonard G. Quallich Iii's NPI number?
- 1093797326. 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 Leonard G. Quallich Iii, 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 | 465 |
|---|---|
| Services billed to Medicare | 861 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)202 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)171 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)133 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)58 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)42 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 pressure74%
- Arthritis45%
- Ischemic heart disease29%
- Anxiety27%
- Diabetes25%
Hospitals where Leonard G. Quallich Iii works
Medicare's Facility Affiliation Data lists Leonard G. Quallich Iii 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.
- Beaumont Hospital - Grosse PointeGrosse Pointe, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230089
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230130
- Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230269
Practice locations
Addresses where Leonard G. Quallich Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 1701 S Blvd E, Suite 300Rochester Hills, MI 48307 (248) 844‑9710
- 4600 Investment Dr, Suite 380Troy, MI 48098 (248) 844‑9710
Group practices
Medicare enrollment lists Leonard G. Quallich Iii as a member of this group (CMS data updated October 2, 2026).
- Troy Gastroenterology PC49 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Rochester Hills
Clinicians with the same Medicare primary specialty in Rochester Hills, MI — not a recommendation.
Other clinicians in Troy Gastroenterology PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University |
| Graduation year | 1996 (30 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) | 1093797326 |
| 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