Progressive Hematology and Oncology PLLC
NPI 1114271673 · Hematology & Oncology Physician · Brooklyn, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Progressive Hematology and Oncology PLLC is a Hematology & Oncology Physician organization in Brooklyn, NY (NPI 1114271673).
Provider details
- NPI number
- 1114271673
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Sonnenschine, Chairman(718) 252-2106
- License
- 242242 (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
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 6201 15th Ave Ste 306Brooklyn, NY 11219-5411Phone: (718) 775-2700
Registry dates
- Enumerated
- 2012-11-06
- Last updated
- 2025-12-30
- Certified
- 2025-12-30
Frequently asked questions
- What is Progressive Hematology and Oncology PLLC's NPI number?
- Progressive Hematology and Oncology PLLC's National Provider Identifier (NPI) is 1114271673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Progressive Hematology and Oncology PLLC?
- Progressive Hematology and Oncology PLLC is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Progressive Hematology and Oncology PLLC located?
- Progressive Hematology and Oncology PLLC's practice location on file with NPPES is 705 Avenue U, Brooklyn, NY 11223-4133.
- What is Progressive Hematology and Oncology PLLC's phone number?
- The practice phone number listed in the NPPES registry for Progressive Hematology and Oncology PLLC is (718) 283-4232.
- Does Progressive Hematology and Oncology PLLC accept Medicare?
- Progressive Hematology and Oncology PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Progressive Hematology and Oncology PLLC?
- The authorized official listed on Progressive Hematology and Oncology PLLC's NPPES record is Mark Sonnenschine, Chairman. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Progressive Hematology and Oncology PLLC's NPI active?
- Yes — Progressive Hematology and Oncology PLLC's NPI (1114271673) is active in the NPPES registry as of the last update on 2025-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.