Melissa M. Summerfield, MD

Medicare activity in 2024

Official CMS public-use data for Melissa M. Summerfield, 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. Injection, onabotulinumtoxina, 1 unit (J0585)1,440 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,267 services
3. Removal of cataract with insertion of prosthetic lens (66984)613 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)600 services
5. Measurement of corneal curvature and depth of eye (92136)563 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 pressure73%
• High cholesterol73%
• Arthritis42%
• Diabetes26%
• Chronic kidney disease23%
• Ischemic heart disease22%

Hospitals where Melissa M. Summerfield works

Medicare's Facility Affiliation Data lists Melissa M. Summerfield 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.

• Floyd County Medical CenterCharles City, IA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 161347
• Hancock County Health SystemBritt, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161307
• MercyOne North Iowa Medical CenterMason City, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160064

Practice locations

Addresses where Melissa M. Summerfield is enrolled with Medicare (CMS data updated October 2, 2026).

• 3121 4th St SWMason City, IA 50401 (641) 423‑8861

Group practices

Medicare enrollment lists Melissa M. Summerfield as a member of this group (CMS data updated October 2, 2026).

• North Iowa Eye Clinic, P.C.5 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Iowa →

Other ophthalmologists in Mason City

Clinicians with the same Medicare primary specialty in Mason City, IA — not a recommendation.

• Bradney L. Carter, DO
• Brandt M. Riley, DO
• Spencer C. Turner, DO

All ophthalmologists in Mason City →

Other clinicians in North Iowa Eye Clinic, P.C.

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

• Bradney L. Carter, DO
• Vonda J. Capper, OD
• Brandt M. Riley, DO
• Spencer C. Turner, DO

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