Quick answers
- Does William F. McGann Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says William F. McGann Jr. 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 William F. McGann Jr. see?
- In 2024, CMS data shows 328 Original Medicare patients and 1,685 services for William F. McGann Jr.. This counts Original Medicare only and measures volume, not quality.
- What is William F. McGann Jr.'s NPI number?
- 1699751925. 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 William F. McGann Jr., 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 | 328 |
|---|---|
| Services billed to Medicare | 1,685 |
| Different services or procedures | 36 |
| 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)648 services
- Test to measure expiratory airflow and volume changes before and after medication administration (94060)206 services
- Test to examine how well the lungs exchange gases (94729)129 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)100 services
- Test to determine lung volumes using sensors (94726)93 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%
- COPD55%
- Arthritis51%
- Ischemic heart disease40%
- Diabetes36%
Hospitals where William F. McGann Jr. works
Medicare's Facility Affiliation Data lists William F. McGann Jr. 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 Hospital DuluthDuluth, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110252
- Northside Hospital ForsythCumming, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110005
- Northside Hospital GwinnettLawrenceville, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110087
Practice locations
Addresses where William F. McGann Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 631 Professional Dr, Suite 350Lawrenceville, GA 30046
Group practices
Medicare enrollment lists William F. McGann Jr. as a member of this group (CMS data updated October 2, 2026).
- Gwinnett Pulmonary Group17 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
Other pulmonologists in Lawrenceville
Clinicians with the same Medicare primary specialty in Lawrenceville, GA — not a recommendation.
Other clinicians in Gwinnett Pulmonary Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | St. Louis College Of Physicians And Surgeons |
| Graduation year | 1979 (47 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699751925 |
| 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