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Dr. Adam D. Klotz sees patients in Uniondale as an internal medicine physician with Msk Nassau.
Medical school: Icahn School of Medicine at Mount Sinai, class of 1996.
You'll find Dr. Klotz at 1101 Hempstead Tpke, Uniondale, NY 11553. Call (212) 639-2000 to schedule. He also has listed practice locations at 1275 York Ave, New York, NY 10065 and 650 Commack Rd, Commack, NY 11725. Msk Nassau is a large group — 98 clinicians are enrolled with Medicare under it. He accepts Medicare assignment — useful to know if you are on traditional Medicare.
About Dr. Klotz's practice
- Specialty
- Internal medicine physician
- Credentials
- MD
- Practice
- Msk Nassau
- Address
- 1101 Hempstead Tpke, Uniondale, NY 11553
- Phone
- (212) 639-2000
- Other locations
- 1275 York Ave, New York, NY 10065; 650 Commack Rd, Commack, NY 11725
- Medical school
- Icahn School of Medicine at Mount Sinai (1996)
- Medicare assignment
- Accepts
- NPI number
- 1952373300
- NY license no.
- 208720
Your review of Dr. Klotz — wait times, how well things were explained, how you were treated — helps other patients decide.
Medicare, Medicaid and hospitals
- Medicare patients (2024)
- 323 people with traditional Medicare, average age 73
- Medicare quality score (MIPS 2024)
- 79 out of 100 — reported through the group practice
- New York Medicaid
- Enrolled fee-for-service provider since 2024. Medicaid managed-care plans keep their own networks, so check with your plan.
Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.
Comparing internists? See 4 in Uniondale or 206 across Long Island.
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Frequently Asked Questions
With Msk Nassau, at 1101 Hempstead Tpke, Uniondale, NY 11553.
Call the office at (212) 639-2000.
Yes — Dr. Klotz accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
Icahn School of Medicine at Mount Sinai, graduating in 1996.
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