Keith Meritz, MD
NPI 1801956974 · Radiation Oncology Physician · Valhalla, NY
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keith Meritz, MD is a Radiation Oncology Physician provider in Valhalla, NY (NPI 1801956974).
Provider details
- NPI number
- 1801956974
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA05601300 (NJ)
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
19 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
291 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) |
|---|---|---|
| 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 | 107 | $23 |
| Design and Construction of Complex Radiation Treatment Device77334 | 63 | $67 |
| Calculation of Radiation Therapy Dose77300 | 37 | $36 |
| Design and Construction of Simple Radiation Treatment Device77332 | 20 | $26 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 15 | $192 |
| Obtaining Data Needed to Develop the Optimal Radiation Treatment, 1 Treatment Area77280 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2022-01-10
- Certified
- 2022-01-10
Frequently asked questions
- What is Keith Meritz's NPI number?
- Keith Meritz's National Provider Identifier (NPI) is 1801956974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Meritz's specialty?
- Keith Meritz is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Keith Meritz located?
- Keith Meritz's practice location on file with NPPES is 100 Woods Rd Ste 1297, Valhalla, NY 10595-1530.
- What is Keith Meritz's phone number?
- The practice phone number listed in the NPPES registry for Keith Meritz is (201) 388-9766.
- Does Keith Meritz accept Medicare?
- Keith Meritz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keith Meritz's NPI active?
- Yes — Keith Meritz's NPI (1801956974) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.