Ilona Hertz, M.D.
NPI 1558479311 · Diagnostic Radiology Physician · New York, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ilona Hertz, M.D. is a Diagnostic Radiology Physician provider in New York, NY (NPI 1558479311).
Provider details
- NPI number
- 1558479311
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 122730 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-29
- Last updated
- 2014-08-25
Frequently asked questions
- What is Ilona Hertz's NPI number?
- Ilona Hertz's National Provider Identifier (NPI) is 1558479311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ilona Hertz's specialty?
- Ilona Hertz is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ilona Hertz located?
- Ilona Hertz's practice location on file with NPPES is 400 E 66th St, New York, NY 10021-9314.
- What is Ilona Hertz's phone number?
- The practice phone number listed in the NPPES registry for Ilona Hertz is (212) 838-4243.
- Does Ilona Hertz accept Medicare?
- Ilona Hertz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ilona Hertz's NPI active?
- Yes — Ilona Hertz's NPI (1558479311) is active in the NPPES registry as of the last update on 2014-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.