Karyn G. Herndon, MD

Medicare activity in 2024

Official CMS public-use data for Karyn G. Herndon, 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 low level od decision making, if using time, 20 minutes or more (99213)96 services
2. Pelvic exam (99459)90 services
3. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)76 services
4. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)33 services
5. Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina (76830)28 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 pressure47%
• Arthritis44%
• Osteoporosis29%
• Anxiety19%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)15%

Hospitals where Karyn G. Herndon works

Medicare's Facility Affiliation Data lists Karyn G. Herndon 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.

• Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140010

Practice locations

Addresses where Karyn G. Herndon is enrolled with Medicare (CMS data updated October 2, 2026).

• 1000 Ctr St, Suite 700Evanston, IL 60020 (874) 896‑3300
• 3633 W Lake Ave, Suite 204Glenview, IL 60026 (847) 729‑2108

Group practices

Medicare enrollment lists Karyn G. Herndon as a member of this group (CMS data updated October 2, 2026).

• Midwest Center for Women's Healthcare, Ltd93 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Evanston

Clinicians with the same Medicare primary specialty in Evanston, IL — not a recommendation.

• Melanie B. Rivera
• Sara J. Slezak, DO
• Sangeeta Senapati, MD
• Ian A. Grable, MD
• Kerry L. Swenson, MD
• Jessica W. Kiley, MD
• Janelle R. Bolden, MD
• Michelle L. Beck, MD

All OB-GYNs in Evanston →

Other clinicians in Midwest Center for Women's Healthcare, Ltd

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

• Melanie B. Rivera
• Melanie E. Delbeccaro, MD
• Ann E. Doll-Pollard, MD
• Emme E. Deamont, NP
• Beth A. Sum, MD
• Christine C. Estes, 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