Hematology Oncology Associates of Rockland,pc
NPI 1134339781 · Hematology & Oncology Physician · Nyack, NY
Hematology Oncology Associates of Rockland,pc is a Hematology & Oncology Physician organization in Nyack, NY (NPI 1134339781).
Provider details
- NPI number
- 1134339781
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Len Natelson, Ceo(845) 362-1750
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
- 2007-05-23
- Last updated
- 2010-06-21
Frequently asked questions
- What is Hematology Oncology Associates of Rockland,pc's NPI number?
- Hematology Oncology Associates of Rockland,pc's National Provider Identifier (NPI) is 1134339781, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Hematology Oncology Associates of Rockland,pc?
- Hematology Oncology Associates of Rockland,pc is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Hematology Oncology Associates of Rockland,pc located?
- Hematology Oncology Associates of Rockland,pc's practice location on file with NPPES is 255 Fifth Ave, Nyack, NY 10960-1824.
- What is Hematology Oncology Associates of Rockland,pc's phone number?
- The practice phone number listed in the NPPES registry for Hematology Oncology Associates of Rockland,pc is (845) 362-1750.
- Who is the authorized official for Hematology Oncology Associates of Rockland,pc?
- The authorized official listed on Hematology Oncology Associates of Rockland,pc's NPPES record is Len Natelson, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Hematology Oncology Associates of Rockland,pc's NPI active?
- Yes — Hematology Oncology Associates of Rockland,pc's NPI (1134339781) is active in the NPPES registry as of the last update on 2010-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.