Dr Warren Geisler, MD - Medicare Internal Medicine in Bronx, NY

Dr Warren Geisler, MD is a medicare enrolled "Internal Medicine" physician in Bronx, New York. He went to New York Medical College and graduated in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 1578 Williamsbridge Rd, Suite 2d, Bronx, New York. You can reach out to his office (for appointments etc.) via phone at (718) 863-8465.

Dr Warren Geisler is licensed to practice in New York (license number 184047) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1902867955.

Contact Information

Dr Warren Geisler, MD
1578 Williamsbridge Rd, Suite 2d,
Bronx, NY 10461-6265
(718) 863-8465
(718) 863-8983

Map and Direction




Physician's Profile

Full NameDr Warren Geisler
GenderMale
SpecialityInternal Medicine
Experience35 Years
Location1578 Williamsbridge Rd, Bronx, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Warren Geisler attended and graduated from New York Medical College in 1989
  NPI Data:
  • NPI Number: 1902867955
  • Provider Enumeration Date: 03/30/2006
  • Last Update Date: 06/03/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 1254361363
  • Enrollment ID: I20080226000388

Medical Identifiers

Medical identifiers for Dr Warren Geisler such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902867955NPI-NPPES
01571668MedicaidNY
A400012345OtherNYGROUP MEMBER PTAN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 184047 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Americare Certified Special Services, Inc ChhaBrooklyn, NYHome health agency
Revival Home Health CareBrooklyn, NYHome health agency

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Warren Geisler allows following entities to bill medicare on his behalf.
Entity NameWarren Geisler, M.d., P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750577094
PECOS PAC ID: 7517041833
Enrollment ID: O20080226000414

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. Dr Warren Geisler is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Warren Geisler, MD
1578 Williamsbridge Rd, Suite 2d,
Bronx, NY 10461-6265

Ph: (718) 863-8465
Dr Warren Geisler, MD
1578 Williamsbridge Rd, Suite 2d,
Bronx, NY 10461-6265

Ph: (718) 863-8465

Reviews and Comments


Internal Medicine Doctors in Bronx, NY

Selina Sultana Zaman, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 600 E 233rd St, Bronx, NY 10466
Phone: 718-920-9000    
Dr. Jyothi B Kudakandira, M.D
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1650 Grand Concourse, Bronx, NY 10457
Phone: 718-960-1234    
Mana Rao, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2015 Grand Concourse, Bronx, NY 10453
Phone: 718-299-7295    Fax: 718-299-6797
Dr. Keshav Teelucksingh, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2015 Grand Concourse, Bronx, NY 10453
Phone: 718-299-7295    Fax: 718-299-6797
Tannaz Iranpour Boroujeni, M.D
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 600 E 233rd St, Bronx, NY 10466
Phone: 617-840-0110    
Heather Root, MD
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 111 E 210th St, Bronx, NY 10467
Phone: 718-920-8592    Fax: 718-405-0610
Kohtaro Ooka,
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1825 Eastchester Rd, Bronx, NY 10461
Phone: 844-556-6683    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

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.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.