M J Meltzer & D G Kassan MD LLP
NPI 1427155605 · Internal Medicine Physician · Roslyn Heights, NY
M J Meltzer & D G Kassan MD LLP is a Internal Medicine Physician organization in Roslyn Heights, NY (NPI 1427155605).
Provider details
- NPI number
- 1427155605
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Daniel Kassan, Physician(516) 621-7720
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Gastroenterology Physician207RG0100X
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
- 2006-09-20
- Last updated
- 2009-03-30
Frequently asked questions
- What is M J Meltzer & D G Kassan MD LLP's NPI number?
- M J Meltzer & D G Kassan MD LLP's National Provider Identifier (NPI) is 1427155605, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is M J Meltzer & D G Kassan MD LLP?
- M J Meltzer & D G Kassan MD LLP is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is M J Meltzer & D G Kassan MD LLP located?
- M J Meltzer & D G Kassan MD LLP's practice location on file with NPPES is 70 Glen Cove Rd, Roslyn Heights, NY 11577-1726.
- What is M J Meltzer & D G Kassan MD LLP's phone number?
- The practice phone number listed in the NPPES registry for M J Meltzer & D G Kassan MD LLP is (516) 621-7720.
- Who is the authorized official for M J Meltzer & D G Kassan MD LLP?
- The authorized official listed on M J Meltzer & D G Kassan MD LLP's NPPES record is Daniel Kassan, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is M J Meltzer & D G Kassan MD LLP's NPI active?
- Yes — M J Meltzer & D G Kassan MD LLP's NPI (1427155605) is active in the NPPES registry as of the last update on 2009-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.