Quick answers
- Does John S. Hyland accept Medicare assignment?
- Yes. Medicare's clinician data says John S. Hyland 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 John S. Hyland see?
- In 2024, CMS data shows 167 Original Medicare patients and 735 services for John S. Hyland. This counts Original Medicare only and measures volume, not quality.
- What is John S. Hyland's NPI number?
- 1427143148. 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 John S. Hyland, 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 | 167 |
|---|---|
| Services billed to Medicare | 735 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)363 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)96 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)92 services
- Administration of influenza virus vaccine (G0008)45 services
- Influenza vaccine split virus, preservative free (90662)43 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%
- Arthritis41%
- Chronic kidney disease37%
- Diabetes29%
- Ischemic heart disease28%
Hospitals where John S. Hyland works
Medicare's Facility Affiliation Data lists John S. Hyland 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.
- Piedmont Newton HospitalCovington, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110018
- Piedmont Rockdale HospitalConyers, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110091
Practice locations
Addresses where John S. Hyland is enrolled with Medicare (CMS data updated October 2, 2026).
- 105 Collier Rd NW, Suite 1030Atlanta, GA 30309 (404) 350‑3860
- 1855 Hudson Bridge RdStockbridge, GA 30281 (770) 801‑2500
Group practices
Medicare enrollment lists John S. Hyland as a member of these groups (CMS data updated October 2, 2026).
- Piedmont Professional Services LLC388 clinicians in the group
- Piedmont Medical Care Corporation371 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Atlanta
Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.
Other clinicians in Piedmont Professional Services LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 1985 (41 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) | 1427143148 |
| 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