Marisa Weiss, MD
NPI 1457351660 · Radiation Oncology Physician · Wynnewood, PA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marisa Weiss, MD is a Radiation Oncology Physician provider in Wynnewood, PA (NPI 1457351660).
Provider details
- NPI number
- 1457351660
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD033799E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,801 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 592 | $45 |
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 481 | $21 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 276 | $194 |
| Calculation of Radiation Therapy Dose77300 | 270 | $33 |
| Intra-Fraction Localization and Tracking of Target Or Patient Motion During Delivery of Radiation Therapy (eg,3d Positional Tracking, Gating, 3d Surface Tracking), Each Fraction of TreatmentG6017 | 253 | $80 |
| Design and Construction of Complex Radiation Treatment Device77334 | 171 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 145 | 77 |
| Betamethasone Dipropionate | 30 | 20 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$12,188 across 44 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2011-09-22
Frequently asked questions
- What is Marisa Weiss's NPI number?
- Marisa Weiss's National Provider Identifier (NPI) is 1457351660, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marisa Weiss's specialty?
- Marisa Weiss is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Marisa Weiss located?
- Marisa Weiss's practice location on file with NPPES is 100 E Lancaster Ave, Wynnewood, PA 19096-3450.
- What is Marisa Weiss's phone number?
- The practice phone number listed in the NPPES registry for Marisa Weiss is (610) 645-2433.
- Does Marisa Weiss accept Medicare?
- Marisa Weiss is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marisa Weiss's NPI active?
- Yes — Marisa Weiss's NPI (1457351660) is active in the NPPES registry as of the last update on 2011-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.