Quick answers
- Does Mark S. Quinn accept Medicare assignment?
- Yes. Medicare's clinician data says Mark S. Quinn 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 Mark S. Quinn see?
- In 2024, CMS data shows 121 Original Medicare patients and 1,998 services for Mark S. Quinn. This counts Original Medicare only and measures volume, not quality.
- What is Mark S. Quinn's NPI number?
- 1518905470. 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 Mark S. Quinn, 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 | 121 |
|---|---|
| Services billed to Medicare | 1,998 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ct guidance for insertion of radiation therapy fields (77014)823 services
- Calculation of radiation therapy dose (77300)292 services
- Radiation treatment management, 5 treatment sessions (77427)209 services
- Design and construction of complex radiation treatment device (77334)137 services
- Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)70 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- Arthritis38%
- Ischemic heart disease32%
- Diabetes23%
Hospitals where Mark S. Quinn works
Medicare's Facility Affiliation Data lists Mark S. Quinn 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.
- Memorial HospitalLogansport, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150072
- Navicent Health BaldwinMilledgeville, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 110150
- Northside HospitalAtlanta, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110161
- St Marys Good Samaritan HospitalGreensboro, GA · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 111329
- Union General HospitalBlairsville, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 110051
Practice locations
Addresses where Mark S. Quinn is enrolled with Medicare (CMS data updated October 2, 2026).
- 308 Coliseum Dr, Suite 100Macon, GA 31217 (478) 742‑2278
- 3330 Preston Ridge Rd, Suite 100Alpharetta, GA 30005 (770) 255‑7500
Group practices
Medicare enrollment lists Mark S. Quinn as a member of this group (CMS data updated October 2, 2026).
- North Atlanta Professional Services LLC430 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Georgia
Clinicians with the same Medicare primary specialty in Georgia — not a recommendation.
Other clinicians in North Atlanta Professional Services LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Georgia School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518905470 |
| 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