Quick answers
- Does Glen L. Nadel accept Medicare assignment?
- Yes. Medicare's clinician data says Glen L. Nadel 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 Glen L. Nadel see?
- In 2024, CMS data shows 166 Original Medicare patients and 3,432 services for Glen L. Nadel. This counts Original Medicare only and measures volume, not quality.
- What is Glen L. Nadel's NPI number?
- 1548231400. 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 Glen L. Nadel, 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 | 166 |
|---|---|
| Services billed to Medicare | 3,432 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Test for allergy using allergenic extract (95004)1,609 services
- Test for allergy using allergenic extract injected into skin (95024)384 services
- Professional service for preparation and provision of 1 or more antigens (95165)364 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)244 services
- Professional service for multiple injections of allergen (95117)222 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 pressure58%
- Asthma49%
- Arthritis46%
- Ischemic heart disease27%
- Osteoporosis23%
Hospitals where Glen L. Nadel works
Medicare's Facility Affiliation Data lists Glen L. Nadel 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.
- Northside HospitalAtlanta, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110161
Practice locations
Addresses where Glen L. Nadel is enrolled with Medicare (CMS data updated October 2, 2026).
- 11660 Alpharetta Hwy, Suite 620Roswell, GA 30076 (770) 740‑9600
- 3400 McClure Bridge Rd, Suite ADuluth, GA 30096 (770) 813‑0254
- 5555 Peachtree Dunwoody NE Rd, Suite 325Atlanta, GA 30342
- 5555 Peachtree Dunwoody Rd, Suite 325Atlanta, GA 30342 (404) 255‑9286
Group practices
Medicare enrollment lists Glen L. Nadel as a member of this group (CMS data updated October 2, 2026).
- Allergy and Asthma Consultants, P.C.2 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Roswell
Clinicians with the same Medicare primary specialty in Roswell, GA — not a recommendation.
Other clinicians in Allergy and Asthma Consultants, P.C.
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 | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548231400 |
| 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