Quick answers
- Does Michael J. Koriwchak accept Medicare assignment?
- Yes. Medicare's clinician data says Michael J. Koriwchak 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 Michael J. Koriwchak see?
- In 2024, CMS data shows 481 Original Medicare patients and 1,306 services for Michael J. Koriwchak. This counts Original Medicare only and measures volume, not quality.
- What is Michael J. Koriwchak's NPI number?
- 1720085756. 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 Michael J. Koriwchak, 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 | 481 |
|---|---|
| Services billed to Medicare | 1,306 |
| Different services or procedures | 53 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)468 services
- Diagnostic exam of voice box using a flexible endoscope (31575)155 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)135 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)119 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)101 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%
- Arthritis51%
- Ischemic heart disease33%
- Osteoporosis20%
- Atrial fibrillation19%
Hospitals where Michael J. Koriwchak works
Medicare's Facility Affiliation Data lists Michael J. Koriwchak 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.
- Emory Decatur HospitalDecatur, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 110076
- Northside HospitalAtlanta, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110161
- Northside Hospital ForsythCumming, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110005
- Saint Joseph's Hospital of Atlanta, IncAtlanta, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110082
Practice locations
Addresses where Michael J. Koriwchak is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 Johnson Ferry RdAtlanta, GA 30342 (404) 851‑8000
- 1000 Johnson Ferry Rd NEAtlanta, GA 30342
- 5673 Peachtree Dunwoody Rd, Suite 150Atlanta, GA 30342 (404) 297‑4230
- 748 Old Norcross Rd, Suite 100Lawrenceville, GA 30046 (770) 339‑1500
Group practices
Medicare enrollment lists Michael J. Koriwchak as a member of these groups (CMS data updated October 2, 2026).
- Georgia Surgical Professional Services LLC38 clinicians in the group
- Ent of Georgia, LLC12 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Atlanta
Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.
Other clinicians in Georgia Surgical Professional Services LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Duke University School Of Medicine |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720085756 |
| 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