Quick answers
- Which hospitals does David A. Feldstein work at?
- Medicare's official clinician data lists David A. Feldstein at 3 hospitals: Nazareth Hospital, UnityPoint Health - Meriter and University of WI Hospitals & Clinics Authority. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David A. Feldstein see patients?
- Medicare's clinician data lists 6 practice locations, including Madison, WI and Monona, WI. Call before your visit to confirm the address.
- What is David A. Feldstein's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does David A. Feldstein accept Medicare assignment?
- Yes. Medicare's clinician data says David A. Feldstein accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for David A. Feldstein?
- (608) 287-2000, as listed in official Medicare / NPI Registry data.
- What is David A. Feldstein's NPI number?
- 1396712444. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David A. Feldstein works
Medicare's Facility Affiliation Data lists David A. Feldstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Nazareth HospitalPhiladelphia, PA · Acute Care Hospital · CCN 390204
- UnityPoint Health - MeriterMadison, WI · Acute Care Hospital · CCN 520089
- University of WI Hospitals & Clinics AuthorityMadison, WI · Acute Care Hospital · CCN 520098
Practice locations
Addresses where David A. Feldstein is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1 S Park StMadison, WI 53715 (608) 287‑2000
- 1050 E BroadwayMonona, WI 53716 (608) 222‑8779
- 20 S Park StMadison, WI 53715 (608) 287‑2076
- 2402 Winnebago StMadison, WI 53704
- 600 Highland AveMadison, WI 53792 (608) 263‑6400
Group practices
Medicare enrollment lists David A. Feldstein as a member of this group (CMS data updated 2026-10-02).
- University of Wisconsin Medical Foundation Inc2,553 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Madison
Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396712444 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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