Leonard Kessler, MD - Internal Medicine in Rockville Centre, NY

Leonard Kessler, MD is a Internal Medicine - Hematology & Oncology physician based in Rockville Centre, New York. Leonard Kessler is licensed to practice in New York (license number 127415) and his current practice location is 242 Merrick Rd, Suite 301, Rockville Centre, New York. He can be reached at his office (for appointments etc.) via phone at (516) 536-1455.

NPI number for Leonard Kessler is 1942209135 and his current mailing address is 242 Merrick Rd, Suite 301, Rockville Centre, New York. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1942209135.

Contact Information

Leonard Kessler, MD
242 Merrick Rd, Suite 301,
Rockville Centre, NY 11570-5254
(516) 536-1455
(516) 536-1598

Map and Direction




Physician's Profile

Full NameLeonard Kessler
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location242 Merrick Rd, Rockville Centre, New York
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1942209135
  • Provider Enumeration Date: 07/19/2005
  • Last Update Date: 12/07/2009

Medical Identifiers

Medical identifiers for Leonard Kessler such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942209135NPI-NPPES
00479570MedicaidNY
W15181OtherGROUP#

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 127415 (New York)Primary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Leonard Kessler is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Leonard Kessler, MD
242 Merrick Rd, Suite 301,
Rockville Centre, NY 11570-5254

Ph: (516) 536-1455
Leonard Kessler, MD
242 Merrick Rd, Suite 301,
Rockville Centre, NY 11570-5254

Ph: (516) 536-1455

Reviews and Comments


Internal Medicine Doctors in Rockville Centre, NY

Manish B Undavia, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 242 Merrick Rd, Suite 402, Rockville Centre, NY 11570
Phone: 516-763-2800    
Richard Horowitz, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 242 Merrick Rd, Suite 402, Rockville Centre, NY 11570
Phone: 516-763-2800    
Nenad Grlic, DO
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1000 N. Village Avenue, Rockville Centre, NY 11571
Phone: 516-705-1818    
Mary K Leung, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 242 Merrick Rd Ste 301, Rockville Centre, NY 11570
Phone: 516-536-1455    Fax: 516-536-1598
Richard M. Lee, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 242 Merrick Rd, Suite 301, Rockville Centre, NY 11570
Phone: 516-536-1455    Fax: 516-536-1598
Varvara Alexiadis, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 242 Merrick Rd, Ste 403, Rockville Centre, NY 11570
Phone: 516-536-3700    Fax: 516-536-4309
Dr. Ellen Haig, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 2 Lincoln Ave, Suite 201, Rockville Centre, NY 11570
Phone: 516-536-0600    Fax: 516-536-0694

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Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

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