Quick answers
- Does Katrina L. Amsler accept Medicare assignment?
- Yes. Medicare's clinician data says Katrina L. Amsler 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 Katrina L. Amsler see?
- In 2024, CMS data shows 129 Original Medicare patients and 463 services for Katrina L. Amsler. This counts Original Medicare only and measures volume, not quality.
- What is Katrina L. Amsler's NPI number?
- 1619351855. 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 Katrina L. Amsler, 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 | 129 |
|---|---|
| Services billed to Medicare | 463 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)173 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)71 services
- Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)59 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)24 services
- Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes (99305)20 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%
- Ischemic heart disease68%
- Heart failure63%
- Arthritis58%
- Diabetes57%
Hospitals where Katrina L. Amsler works
Medicare's Facility Affiliation Data lists Katrina L. Amsler 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.
- MedStar Good Samaritan HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 210056
- MedStar Union Memorial HospitalBaltimore, MD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 210024
Practice locations
Addresses where Katrina L. Amsler is enrolled with Medicare (CMS data updated October 2, 2026).
- 127 Oneida Valley Rd, Suite 203Butler, PA 16001 (724) 431‑0550
- 3333 N Calvert StBaltimore, MD 21218 (410) 261‑8500
- 3333 N Calvert St, Suite 500 Mmg Cardiology Union OfficeBaltimore, MD 21218 (410) 366‑5600
- 5601 Lloch Raven BlvdBaltimore, MD 21239 (443) 444‑8000
Group practices
Medicare enrollment lists Katrina L. Amsler as a member of these groups (CMS data updated October 2, 2026).
- MedStar Medical Group II LLC3,767 clinicians in the group
- Butler Medical Providers360 clinicians in the group
- MedStar Heart Institute LLC301 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Butler
Clinicians with the same Medicare primary specialty in Butler, PA — not a recommendation.
Other clinicians in MedStar Medical Group II LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1619351855 |
| 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