Quick answers
- Does Spencer R. Idstein accept Medicare assignment?
- Yes. Medicare's clinician data says Spencer R. Idstein 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 Spencer R. Idstein see?
- In 2024, CMS data shows 31 Original Medicare patients and 49 services for Spencer R. Idstein. This counts Original Medicare only and measures volume, not quality.
- What is Spencer R. Idstein's NPI number?
- 1205194693. 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 Spencer R. Idstein, 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 | 31 |
|---|---|
| Services billed to Medicare | 49 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)20 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)11 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 cholesterol74%
- High blood pressure71%
- Arthritis48%
Hospitals where Spencer R. Idstein works
Medicare's Facility Affiliation Data lists Spencer R. Idstein 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.
- Baptist Health La GrangeLa Grange, KY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 180138
- Baptist Health LouisvilleLouisville, KY · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 180130
- Norton Hospitals, IncLouisville, KY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 180088
Practice locations
Addresses where Spencer R. Idstein is enrolled with Medicare (CMS data updated October 2, 2026).
- 6341 Meeting St, Unit 102Prospect, KY 40059 (502) 566‑0300
Group practices
Medicare enrollment lists Spencer R. Idstein as a member of this group (CMS data updated October 2, 2026).
- Internal Medicine and Pediatric Partners PLLC2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Prospect
Clinicians with the same Medicare primary specialty in Prospect, KY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Louisville School Of Medicine |
| Graduation year | 2012 (14 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205194693 |
| 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