Quick answers
- Does Lena R. Dumasia accept Medicare assignment?
- Yes. Medicare's clinician data says Lena R. Dumasia 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 Lena R. Dumasia see?
- In 2024, CMS data shows 363 Original Medicare patients and 160,356 services for Lena R. Dumasia. This counts Original Medicare only and measures volume, not quality.
- What is Lena R. Dumasia's NPI number?
- 1821015793. 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 Lena R. Dumasia, 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 | 363 |
|---|---|
| Services billed to Medicare | 160,356 |
| Different services or procedures | 148 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, tezepelumab-ekko, 1 mg (J2356)27,930 services
- Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg (J1569)8,910 services
- Injection, omalizumab, 5 mg (J2357)6,450 services
- Injection, denosumab, 1 mg (J0897)5,880 services
- Injection, epoetin alfa, (for non-esrd use), 1000 units (J0885)4,082 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 cholesterol73%
- High blood pressure71%
- Arthritis52%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)51%
- Chronic kidney disease31%
- Diabetes29%
Hospitals where Lena R. Dumasia works
Medicare's Facility Affiliation Data lists Lena R. Dumasia 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
- Milton S Hershey Medical CenterHershey, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390256
- Penn State Health Lancaster Medical CenterLancaster, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390339
- UPMC LititzLititz, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390068
- WellSpan Ephrata Community HospitalEphrata, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390225
Practice locations
Addresses where Lena R. Dumasia is enrolled with Medicare (CMS data updated October 2, 2026).
- 703 Lampeter RdLancaster, PA 17602 (717) 291‑1313
- 704 Lampeter RdLancaster, PA 17602
Group practices
Medicare enrollment lists Lena R. Dumasia as a member of this group (CMS data updated October 2, 2026).
- Lancaster Cancer Center Ltd4 clinicians in the group
Specialties
- Hematologyprimary
- Medical Oncologyalso
Other hematologists in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Other clinicians in Lancaster Cancer Center Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821015793 |
| 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