Lionel Grossbard MD PC
NPI 1598931651 · Hematology & Oncology Physician · New York, NY
Lionel Grossbard MD PC is a Hematology & Oncology Physician organization in New York, NY (NPI 1598931651).
Provider details
- NPI number
- 1598931651
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Lionel Grossbard, President(212) 305-8399
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Medical Oncology Physician207RX0202X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-05-07
- Last updated
- 2008-05-07
Frequently asked questions
- What is Lionel Grossbard MD PC's NPI number?
- Lionel Grossbard MD PC's National Provider Identifier (NPI) is 1598931651, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Lionel Grossbard MD PC?
- Lionel Grossbard MD PC is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Lionel Grossbard MD PC located?
- Lionel Grossbard MD PC's practice location on file with NPPES is 161 Fort Washington Ave, New York, NY 10032-3729.
- What is Lionel Grossbard MD PC's phone number?
- The practice phone number listed in the NPPES registry for Lionel Grossbard MD PC is (212) 305-8399.
- Who is the authorized official for Lionel Grossbard MD PC?
- The authorized official listed on Lionel Grossbard MD PC's NPPES record is Lionel Grossbard, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Lionel Grossbard MD PC's NPI active?
- Yes — Lionel Grossbard MD PC's NPI (1598931651) is active in the NPPES registry as of the last update on 2008-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.