Quick answers
- Does Karen N. Klein accept Medicare assignment?
- Yes. Medicare's clinician data says Karen N. Klein 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 Karen N. Klein see?
- In 2024, CMS data shows 75 Original Medicare patients and 437 services for Karen N. Klein. This counts Original Medicare only and measures volume, not quality.
- What is Karen N. Klein's NPI number?
- 1295786101. 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 Karen N. Klein, 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 | 75 |
|---|---|
| Services billed to Medicare | 437 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)77 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)19 services
- Injection of drug or substance under skin or into muscle (96372)16 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 cholesterol57%
- Arthritis39%
- COPD36%
- Diabetes29%
- Anxiety29%
Hospitals where Karen N. Klein works
Medicare's Facility Affiliation Data lists Karen N. Klein 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.
- Henry Ford Allegiance HealthJackson, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230092
- Insight Hospital and Medical Center ColdwaterColdwater, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230022
Practice locations
Addresses where Karen N. Klein is enrolled with Medicare (CMS data updated October 2, 2026).
- 605 W Chicago Rd, Suite 2Coldwater, MI 49036 (517) 924‑1444
Group practices
Medicare enrollment lists Karen N. Klein as a member of this group (CMS data updated October 2, 2026).
- Hillsdale Pulmonary Critical Care and Sleep Medicine PC10 clinicians in the group
Specialties
- Family Practiceprimary
- Preventive Medicinealso
Other family doctors in Coldwater
Clinicians with the same Medicare primary specialty in Coldwater, MI — not a recommendation.
Other clinicians in Hillsdale Pulmonary Critical Care and Sleep Medicine PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Colorado School Of Medicine, Denver |
| Graduation year | 1983 (43 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295786101 |
| 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