Deborah Marshall, MD
NPI 1336501220 · Radiation Oncology Physician · New York, NY
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Deborah Marshall, MD is a Radiation Oncology Physician provider in New York, NY (NPI 1336501220).
Provider details
- NPI number
- 1336501220
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A152703 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
304 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Intermediate Proton Beam Radiation Treatment77523 | 114 | $1,079 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 99 | $133 |
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 27 | $85 |
| Continuing Radiation Therapy Consultation Per Week77336 | 26 | $103 |
| Design and Construction of Complex Radiation Treatment Device77334 | 21 | $140 |
| Cranial Lesion Surgery Using Radiation Over Multiple Sessions77373 | 17 | $1,139 |
Typical Medicare-allowed amounts for these services range $85–$1,139 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-22
- Last updated
- 2021-09-30
- Certified
- 2021-09-30
Frequently asked questions
- What is Deborah Marshall's NPI number?
- Deborah Marshall's National Provider Identifier (NPI) is 1336501220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deborah Marshall's specialty?
- Deborah Marshall is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Deborah Marshall located?
- Deborah Marshall's practice location on file with NPPES is 1 Gustave L Levy Pl, New York, NY 10029-6504.
- What is Deborah Marshall's phone number?
- The practice phone number listed in the NPPES registry for Deborah Marshall is (212) 241-7500.
- Does Deborah Marshall accept Medicare?
- Deborah Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Deborah Marshall's NPI active?
- Yes — Deborah Marshall's NPI (1336501220) is active in the NPPES registry as of the last update on 2021-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.