Quick answers
- Does Lawrence R. Keenan accept Medicare assignment?
- Yes. Medicare's clinician data says Lawrence R. Keenan 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 Lawrence R. Keenan see?
- In 2024, CMS data shows 624 Original Medicare patients and 1,012 services for Lawrence R. Keenan. This counts Original Medicare only and measures volume, not quality.
- What is Lawrence R. Keenan's NPI number?
- 1225015472. 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 Lawrence R. Keenan, 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 | 624 |
|---|---|
| Services billed to Medicare | 1,012 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)398 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)172 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)141 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)91 services
- Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)32 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%
- Chronic kidney disease57%
- Ischemic heart disease49%
- Atrial fibrillation47%
- Heart failure46%
Hospitals where Lawrence R. Keenan works
Medicare's Facility Affiliation Data lists Lawrence R. Keenan 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.
- Mayo Clinic Health System - Albert Lea and AustinAlbert Lea, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240043
- Mayo Clinic Health System - FairmontFairmont, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240166
- Mayo Clinic Health System - MankatoMankato, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240093
- Mayo Clinic Health System in Red WingRed Wing, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240018
- Mayo Clinic Health System St. JamesSt James, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241333
Practice locations
Addresses where Lawrence R. Keenan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1000 1st Dr NWAustin, MN 55912 (507) 433‑7351
- 1025 Marsh StMankato, MN 56001 (507) 625‑4031
- 1101 Moulton and Parsons DrSaint James, MN 56081 (507) 375‑3261
- 2200 NW 26th StOwatonna, MN 55060 (507) 451‑1120
- 2250 NW 26th StOwatonna, MN 55060 (507) 451‑3850
Group practices
Medicare enrollment lists Lawrence R. Keenan as a member of these groups (CMS data updated October 2, 2026).
- Mayo Clinic Health System-Southwest Minnesota Region661 clinicians in the group
- Mayo Clinic Health System-Southeast Minnesota Region551 clinicians in the group
- Mayo Clinic Health System-Fairmont155 clinicians in the group
- Mayo Clinic Health System-St James76 clinicians in the group
- Mayo Clinic Health System-Lake City69 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Minnesota →
Other cardiologists in Austin
Clinicians with the same Medicare primary specialty in Austin, MN — not a recommendation.
Other clinicians in Mayo Clinic Health System-Southwest Minnesota Region
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225015472 |
| 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