Quick answers
- Does Molly Stumacher accept Medicare assignment?
- Yes. Medicare's clinician data says Molly Stumacher 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 Molly Stumacher see?
- In 2024, CMS data shows 692 Original Medicare patients and 248,523 services for Molly Stumacher. This counts Original Medicare only and measures volume, not quality.
- What is Molly Stumacher's NPI number?
- 1396842126. 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 Molly Stumacher, 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 | 692 |
|---|---|
| Services billed to Medicare | 248,523 |
| Different services or procedures | 115 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, darbepoetin alfa, 1 microgram (non-esrd use) (J0881)41,401 services
- Injection, fosaprepitant, 1 mg (J1453)28,350 services
- Injection, pembrolizumab, 1 mg (J9271)22,000 services
- Injection, denosumab, 1 mg (J0897)8,760 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)6,770 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 cholesterol75%
- High blood pressure73%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)60%
- Arthritis54%
- Ischemic heart disease33%
- Osteoporosis33%
Hospitals where Molly Stumacher works
Medicare's Facility Affiliation Data lists Molly Stumacher 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.
- Bryn Mawr HospitalBryn Mawr, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390139
- Hospital of University of PennsylvaniaPhiladelphia, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390111
- Main Line Hospital LankenauWynnewood, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390195
- Paoli HospitalPaoli, PA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 390153
- Riddle Memorial HospitalMedia, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390222
Practice locations
Addresses where Molly Stumacher is enrolled with Medicare (CMS data updated October 2, 2026).
- 825 Old Lancaster Rd, Suite 320Bryn Mawr, PA 19010 (610) 527‑3800
Group practices
Medicare enrollment lists Molly Stumacher as a member of this group (CMS data updated October 2, 2026).
- Bryn Mawr Medical Specialists Association134 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Other clinicians in Bryn Mawr Medical Specialists Association
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| 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) | 1396842126 |
| 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