Quick answers
- Does Kirsten H. Johnsen Martin accept Medicare assignment?
- Yes. Medicare's clinician data says Kirsten H. Johnsen Martin 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 Kirsten H. Johnsen Martin see?
- In 2024, CMS data shows 48 Original Medicare patients and 196 services for Kirsten H. Johnsen Martin. This counts Original Medicare only and measures volume, not quality.
- What is Kirsten H. Johnsen Martin's NPI number?
- 1457417875. 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 Kirsten H. Johnsen Martin, 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 | 48 |
|---|---|
| Services billed to Medicare | 196 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)40 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)40 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)28 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)12 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%
- Diabetes58%
- Arthritis48%
- Depression42%
- Ischemic heart disease38%
Hospitals where Kirsten H. Johnsen Martin works
Medicare's Facility Affiliation Data lists Kirsten H. Johnsen Martin 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.
- Lancaster General HospitalLancaster, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390100
Practice locations
Addresses where Kirsten H. Johnsen Martin is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 317 Chestnut StQuarryville, PA 17566
- 540 N Duke St 3rd Floor, Penn Med Lanc Gen H. Phys Fam Med DowntownLancaster, PA 17602 (717) 544‑4950
- 554 N Duke St Fl, 3 Penn Med Lanc Gen Health Phys ComprehensiLancaster, PA 17602 (717) 554‑4943
- 555 N Duke StLancaster, PA 17602
- 555 N Duke St Fl 1, Penn Medicine Lancaster General Health CareLancaster, PA 17602 (717) 544‑7279
Group practices
Medicare enrollment lists Kirsten H. Johnsen Martin as a member of this group (CMS data updated October 2, 2026).
- Lancaster General Hospital520 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Quarryville
Clinicians with the same Medicare primary specialty in Quarryville, PA — not a recommendation.
Other clinicians in Lancaster General Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Erie |
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457417875 |
| 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