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Dr. Mark H. Gardenswartz sees patients in Manhasset as a nephrologist with North Shore-Lij Medical PC.
He graduated from University of Colorado School of Medicine, Denver in 1975, which means 51 years have passed since medical school.
To book an appointment, call (516) 562-2229. Dr. Gardenswartz's office is at 300 Community Dr Ll, Manhasset, NY 11030. Other listed locations: 330 Community Dr, Manhasset, NY 11030; 350 Community Dr, Manhasset, NY 11030. 6440 clinicians bill Medicare through North Shore-Lij Medical PC, so it is a large group practice rather than a solo office. He accepts Medicare assignment — useful to know if you are on traditional Medicare. He is listed as offering telehealth.
Hospital affiliations on file with Medicare: Lenox Hill Hospital and Phelps Hospital.
If Dr. Gardenswartz treated you or someone in your family, your experience is exactly what others are looking for. Leave a review below.
Dr. Gardenswartz at a glance
- Specialty
- Nephrologist
- Credentials
- MD
- Practice
- North Shore-Lij Medical PC
- Address
- 300 Community Dr Ll, Manhasset, NY 11030
- Phone
- (516) 562-2229
- Other locations
- 330 Community Dr, Manhasset, NY 11030; 350 Community Dr, Manhasset, NY 11030
- Medical school
- University of Colorado School of Medicine, Denver (1975)
- Hospital affiliations
- Lenox Hill Hospital, Phelps Hospital
- Medicare assignment
- Accepts
- Telehealth
- Available
- NPI number
- 1326063215
- NY license no.
- 128389
Medicare, Medicaid and hospitals
- Medicare patients (2024)
- 438 people with traditional Medicare, average age 77
- Most common services billed to Medicare
- Insertion of needle into vein for collection of blood sample
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
- Administration of influenza virus vaccine
- Medicare quality score (MIPS 2024)
- 93 out of 100
- New York Medicaid
- Enrolled fee-for-service provider since 2021. Medicaid managed-care plans keep their own networks, so check with your plan.
- Hospital pages
- Lenox Hill Hospital · Phelps Hospital
Medicare figures cover people with traditional (fee-for-service) Medicare only; services billed for fewer than 11 patients are not published.
Comparing nephrologists? See 14 in Manhasset or 51 across Long Island.
Other nephrologists in Manhasset
Dr. Vladimir Liberman, DONephrologist · Prine Health Medical Group, PLLCNo reviews yetManhasset, NY
Dr. Akshta Pai, MDNephrologist · North Shore-Lij Medical PCNo reviews yetManhasset, NY
Dr. Brian L. Erlich, DONephrologist · Prine Health Medical Group, PLLCNo reviews yetManhasset, NY
Dr. Douglas Lax, DONephrologist · Prine Health Medical Group, PLLCNo reviews yetManhasset, NY
Dr. Gerard J. Tepedino, MDNephrologist · Prine Health Medical Group, PLLCNo reviews yetManhasset, NY
Dr. Jeffrey T. Cohen, MDNephrologist · Prine Health Medical Group, PLLCNo reviews yetManhasset, NYWrite a review
Frequently Asked Questions
With North Shore-Lij Medical PC, at 300 Community Dr Ll, Manhasset, NY 11030.
Call the office at (516) 562-2229.
Yes — Dr. Gardenswartz accepts Medicare assignment, taking the Medicare-approved amount as full payment for covered services.
Lenox Hill Hospital and Phelps Hospital.
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