Quick answers
- Does Karl L. Krohn accept Medicare assignment?
- Medicare's clinician data says Karl L. Krohn may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Karl L. Krohn see?
- In 2024, CMS data shows 269 Original Medicare patients and 856 services for Karl L. Krohn. This counts Original Medicare only and measures volume, not quality.
- What is Karl L. Krohn's NPI number?
- 1194798686. 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 Karl L. Krohn, 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 | 269 |
|---|---|
| Services billed to Medicare | 856 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)226 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)222 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)116 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)58 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)26 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%
- Diabetes47%
- Ischemic heart disease47%
- Arthritis46%
- Chronic kidney disease43%
Hospitals where Karl L. Krohn works
Medicare's Facility Affiliation Data lists Karl L. Krohn 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.
- CHI St Lukes Health Memorial LufkinLufkin, TX · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 450211
- Tyler County HospitalWoodville, TX · Acute Care Hospital · Emergency services: listed by Medicare · CCN 450460
- Woodland Heights Medical CenterLufkin, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450484
Practice locations
Addresses where Karl L. Krohn is enrolled with Medicare (CMS data updated October 2, 2026).
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Lufkin
Clinicians with the same Medicare primary specialty in Lufkin, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Methodist University Medical Department |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1194798686 |
| 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