Dr Martin Greenfield, MD - Medicare Endocrinology in New Hyde Park, NY

Dr Martin Greenfield, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in New Hyde Park, New York. He went to State University Of New York Downstate Medical Center and graduated in 1968 and has 56 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice Optum Medical Care Pc and his current practice location is 2 Pro Health Plz, New Hyde Park, New York. You can reach out to his office (for appointments etc.) via phone at (516) 608-6823.

Dr Martin Greenfield is licensed to practice in New York (license number 103688) 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 1205831443.

Contact Information

Dr Martin Greenfield, MD
2 Pro Health Plz,
New Hyde Park, NY 11042-1111
(516) 608-6823
(516) 608-6824

Map and Direction




Physician's Profile

Full NameDr Martin Greenfield
GenderMale
SpecialityEndocrinology
Experience56 Years
Location2 Pro Health Plz, New Hyde Park, 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 Martin Greenfield attended and graduated from State University Of New York Downstate Medical Center in 1968
  NPI Data:
  • NPI Number: 1205831443
  • Provider Enumeration Date: 06/15/2005
  • Last Update Date: 04/06/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 6608862800
  • Enrollment ID: I20070822000252

Medical Identifiers

Medical identifiers for Dr Martin Greenfield such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205831443NPI-NPPES
3X9601OtherNYEMPIRE BC/BS
AS072OtherNYOXFORD HEALTH PLANS
00673134MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 103688 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Optum Medical Care Pc9931013240961

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 Martin Greenfield allows following entities to bill medicare on his behalf.
Entity NameOptum Medical Care Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982643003
PECOS PAC ID: 9931013240
Enrollment ID: O20031119000321
Entity NameProhealth Care Associates Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275596280
PECOS PAC ID: 4486544186
Enrollment ID: O20040317000468

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 Martin Greenfield 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 Martin Greenfield, MD
2 Pro Health Plz,
New Hyde Park, NY 11042-1111

Ph: (516) 608-6823
Dr Martin Greenfield, MD
2 Pro Health Plz,
New Hyde Park, NY 11042-1111

Ph: (516) 608-6823

Reviews and Comments


Internal Medicine Doctors in New Hyde Park, NY

Dr. Farheen Hasan, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 27005 76th Ave, New Hyde Park, NY 11040
Phone: 718-470-7000    
Carylann Hadjiyane, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1991 Marcus Ave, Suite 101, New Hyde Park, NY 11042
Phone: 516-365-4949    Fax: 516-365-5462
Paul S. Berg, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 2001 Marcus Ave, Suite N204, New Hyde Park, NY 11042
Phone: 516-684-9229    Fax: 516-977-8589
Dr. Michael Jason Levine, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 1999 Marcus Ave Ste 220, New Hyde Park, NY 11042
Phone: 516-869-5400    Fax: 516-869-5800
Gisele Wolf-klein, MD
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 2800 Marcus Ave, Suite 200, New Hyde Park, NY 11042
Phone: 516-708-2522    Fax: 516-708-2570
Dr. Monty Max Bodenheimer, MD
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 3003 New Hyde Park Rd, Ste 406, New Hyde Park, NY 11042
Phone: 516-719-0102    Fax: 516-358-5403
Michael Xin Chen, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 27005 76th Ave, New Hyde Park, NY 11040
Phone: 718-470-3377    

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).

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