Ioannis Hatzaras, M.D.
NPI 1225252471 · Surgical Oncology Physician · New York, NY
Ioannis Hatzaras, M.D. is a Surgical Oncology Physician provider in New York, NY (NPI 1225252471).
Provider details
- NPI number
- 1225252471
- Entity type
- Individual
- Primary specialty
- Surgical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 272065 (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
- 2007-04-12
- Last updated
- 2016-06-03
Frequently asked questions
- What is Ioannis Hatzaras's NPI number?
- Ioannis Hatzaras's National Provider Identifier (NPI) is 1225252471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ioannis Hatzaras's specialty?
- Ioannis Hatzaras is listed in the NPPES registry with a primary specialty of Surgical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Ioannis Hatzaras located?
- Ioannis Hatzaras's practice location on file with NPPES is 330 E 39th, New York, NY 10016.
- What is Ioannis Hatzaras's phone number?
- The practice phone number listed in the NPPES registry for Ioannis Hatzaras is (203) 435-0545.
- Is Ioannis Hatzaras's NPI active?
- Yes — Ioannis Hatzaras's NPI (1225252471) is active in the NPPES registry as of the last update on 2016-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.