Jennifer L. Gilligan, MD

Medicare activity in 2024

Official CMS public-use data for Jennifer L. Gilligan, 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.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)578 services
2. Hemoglobin a1c level (83036)278 services
3. Blood glucose (sugar) test performed by hand-held instrument (82962)264 services
4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)131 services
5. Insertion of needle into vein for collection of blood sample (36415)99 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 pressure71%
• Diabetes47%
• Arthritis46%
• Osteoporosis34%
• Ischemic heart disease32%

Hospitals where Jennifer L. Gilligan works

Medicare's Facility Affiliation Data lists Jennifer L. Gilligan 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 Eastside Medical CenterSnellville, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 110192
• Piedmont Fayette HospitalFayetteville, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110215
• Piedmont Henry HospitalStockbridge, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 110191
• Piedmont Hospital, IncAtlanta, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 110083
• Piedmont Newnan Hospital, IncNewnan, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110229

Practice locations

Addresses where Jennifer L. Gilligan is enrolled with Medicare (CMS data updated October 2, 2026).

• 1984 Peachtree Rd NW, Suite 300Atlanta, GA 30309 (404) 367‑3210

Group practices

Medicare enrollment lists Jennifer L. Gilligan as a member of this group (CMS data updated October 2, 2026).

• Piedmont Providers LLC530 clinicians in the group

Specialties

• Endocrinologyprimary
• Internal Medicinealso

Find other Endocrinology doctors in Georgia →

Other endocrinologists in Atlanta

Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.

• Patrick H. Bowen, MD
• Monica N. Giles, MD
• Georgia Davis
• Lee Metchick, MD
• Negah Rassouli, MD
• Sananda I. Moctezuma, MD
• Setana Idriss
• Bruce W. Bode, MD

All endocrinologists in Atlanta →

Other clinicians in Piedmont Providers LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Daniel Maxwell, DO
• Suzette A. Chin, MD
• Portia Siwawa, MD
• Madiha I. Khan, MD
• Gregory M. Oetting, MD
• Anastasiya Shchatsko, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians