Quick answers
- Does Robert J. Houlihan accept Medicare assignment?
- Yes. Medicare's clinician data says Robert J. Houlihan 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 Robert J. Houlihan see?
- In 2024, CMS data shows 1,387 Original Medicare patients and 2,727 services for Robert J. Houlihan. This counts Original Medicare only and measures volume, not quality.
- What is Robert J. Houlihan's NPI number?
- 1922086800. 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 Robert J. Houlihan, 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 | 1,387 |
|---|---|
| Services billed to Medicare | 2,727 |
| Different services or procedures | 53 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)521 services
- Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)425 services
- Programming of dual lead pacemaker system (93280)252 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)205 services
- Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days (93295)182 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%
- Heart failure55%
- Chronic kidney disease54%
- Atrial fibrillation52%
- Ischemic heart disease50%
Hospitals where Robert J. Houlihan works
Medicare's Facility Affiliation Data lists Robert J. Houlihan 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 - WasecaWaseca, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241345
- Mayo Clinic Health System St. JamesSt James, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241333
Practice locations
Addresses where Robert J. Houlihan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 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
- 404 W Fountain StAlbert Lea, MN 56007 (507) 373‑2384
Group practices
Medicare enrollment lists Robert J. Houlihan 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 Mankato
Clinicians with the same Medicare primary specialty in Mankato, 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) | 1922086800 |
| 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