Quick answers
- Does David S. Sommers accept Medicare assignment?
- Yes. Medicare's clinician data says David S. Sommers 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 David S. Sommers see?
- In 2024, CMS data shows 438 Original Medicare patients and 592 services for David S. Sommers. This counts Original Medicare only and measures volume, not quality.
- What is David S. Sommers's NPI number?
- 1154361194. 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 David S. Sommers, 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 | 438 |
|---|---|
| Services billed to Medicare | 592 |
| Different services or procedures | 50 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Anesthesia for lens surgery (00142)126 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)50 services
- Anesthesia for nerve block and injection procedure, prone position (01992)38 services
- Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)34 services
- Anesthesia for nerve block and injection (01991)31 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%
- Arthritis60%
- Diabetes31%
- Ischemic heart disease28%
- Anxiety24%
Hospitals where David S. Sommers works
Medicare's Facility Affiliation Data lists David S. Sommers 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.
- Memorial HospitalFremont, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 360156
Practice locations
Addresses where David S. Sommers is enrolled with Medicare (CMS data updated October 2, 2026).
- 1200 Ralston AveDefiance, OH 43512 (419) 783‑6944
- 715 S Taft AveFremont, OH 43420 (419) 332‑7321
Group practices
Medicare enrollment lists David S. Sommers as a member of this group (CMS data updated October 2, 2026).
- ProMedica Central Physicians785 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Defiance
Clinicians with the same Medicare primary specialty in Defiance, OH — not a recommendation.
Other clinicians in ProMedica Central Physicians
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154361194 |
| 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