Quick answers
- Does Sonjay J. Fonn accept Medicare assignment?
- Yes. Medicare's clinician data says Sonjay J. Fonn 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 Sonjay J. Fonn see?
- In 2024, CMS data shows 13 Original Medicare patients and 535 services for Sonjay J. Fonn. This counts Original Medicare only and measures volume, not quality.
- What is Sonjay J. Fonn's NPI number?
- 1053533919. 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 Sonjay J. Fonn, 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 | 13 |
|---|---|
| Services billed to Medicare | 535 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
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%
- Arthritis75%
Hospitals where Sonjay J. Fonn works
Medicare's Facility Affiliation Data lists Sonjay J. Fonn 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.
- Mercy Hospital SoutheastCape Girardeau, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260110
Practice locations
Addresses where Sonjay J. Fonn is enrolled with Medicare (CMS data updated October 2, 2026).
- 1102 Sikes AveSikeston, MO 63801
- 65 Doctors ParkCape Girardeau, MO 63703
Group practices
Medicare enrollment lists Sonjay J. Fonn as a member of these groups (CMS data updated October 2, 2026).
- Health Facilities Rehab Services Inc154 clinicians in the group
- Midwest Neurosurgeons LLC2 clinicians in the group
Specialties
- Neurosurgeryprimary
- Pain Managementalso
Other neurosurgeons in Sikeston
Clinicians with the same Medicare primary specialty in Sikeston, MO — not a recommendation.
Other clinicians in Health Facilities Rehab Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Kansas City University Of Med & Biosciences, College Of Osteo Med |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1053533919 |
| 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