Quick answers
- Does Marta Kokoszynska-Werner accept Medicare assignment?
- Yes. Medicare's clinician data says Marta Kokoszynska-Werner 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 Marta Kokoszynska-Werner see?
- In 2024, CMS data shows 429 Original Medicare patients and 1,445 services for Marta Kokoszynska-Werner. This counts Original Medicare only and measures volume, not quality.
- What is Marta Kokoszynska-Werner's NPI number?
- 1710320056. 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 Marta Kokoszynska-Werner, 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 | 429 |
|---|---|
| Services billed to Medicare | 1,445 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Test to measure expiratory airflow and volume (94010)298 services
- Test to examine how well the lungs exchange gases (94729)274 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)234 services
- Test for exercise-induced lung stress (94618)144 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)100 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 pressure71%
- High cholesterol66%
- Arthritis49%
- Ischemic heart disease38%
- COPD38%
- Diabetes34%
Hospitals where Marta Kokoszynska-Werner works
Medicare's Facility Affiliation Data lists Marta Kokoszynska-Werner 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.
- Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300029
- University of Vermont - Fletcher Allen Health CareBurlington, VT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 470003
- Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 300018
- York HospitalYork, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200020
Practice locations
Addresses where Marta Kokoszynska-Werner is enrolled with Medicare (CMS data updated October 2, 2026).
- 16 Hospital DrYork, ME 03909 (207) 351‑2118
Group practices
Medicare enrollment lists Marta Kokoszynska-Werner as a member of this group (CMS data updated October 2, 2026).
- York Hospital198 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
Other pulmonologists in Maine
Clinicians with the same Medicare primary specialty in Maine — not a recommendation.
Other clinicians in York Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1710320056 |
| 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