Dr Herbert Gretz Iii, MD - Medicare Gynecological Oncology in Purchase, NY

Dr Herbert Gretz Iii, MD is a medicare enrolled "Obstetrics & Gynecology - Gynecologic Oncology" physician in Purchase, New York. He went to New York Medical College and graduated in 1986 and has 38 years of diverse experience with area of expertise as Gynecological Oncology. He is a member of the group practice Westchester Medical Group Pc, Westchester Medical Group Pc and his current practice location is 3030 Westchester Ave, Purchase, New York. You can reach out to his office (for appointments etc.) via phone at (914) 305-2730.

Dr Herbert Gretz Iii is licensed to practice in New York (license number 174596-1) 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 1376593301.

Contact Information

Dr Herbert Gretz Iii, MD
3030 Westchester Ave,
Purchase, NY 10577-2574
(914) 305-2730
(914) 305-2731

Map and Direction




Physician's Profile

Full NameDr Herbert Gretz Iii
GenderMale
SpecialityGynecological Oncology
Experience38 Years
Location3030 Westchester Ave, Purchase, 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 Herbert Gretz Iii attended and graduated from New York Medical College in 1986
  NPI Data:
  • NPI Number: 1376593301
  • Provider Enumeration Date: 05/11/2006
  • Last Update Date: 01/22/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 3577537653
  • Enrollment ID: I20040929001232

Medical Identifiers

Medical identifiers for Dr Herbert Gretz Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1376593301NPI-NPPES
77H691OtherNYEMPIRE BCBS
01398801MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VX0201XObstetrics & Gynecology - Gynecologic Oncology 174596-1 (New York)Primary
207VX0201XObstetrics & Gynecology - Gynecologic Oncology 033383 (Connecticut)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
White Plains Hospital CenterWhite plains, NYHospital
Greenwich Hospital Association -Greenwich, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Westchester Medical Group Pc6406752963405
Westchester Medical Group Pc6406752963405

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 Herbert Gretz Iii allows following entities to bill medicare on his behalf.
Entity NameWestchester Medical Group Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881653822
PECOS PAC ID: 6406752963
Enrollment ID: O20031208000533

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 Herbert Gretz Iii 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 Herbert Gretz Iii, MD
3030 Westchester Ave,
Purchase, NY 10577-2574

Ph: (914) 305-2730
Dr Herbert Gretz Iii, MD
3030 Westchester Ave,
Purchase, NY 10577-2574

Ph: (914) 305-2730

Reviews and Comments


Obstetrics & Gynecology Doctors in Purchase, NY

Jessica Kim-vaghela, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 3010 Westchester Ave Ste 400, Purchase, NY 10577
Phone: 914-235-6060    Fax: 914-235-1215
Dr. Julianne Dunne, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 3030 Westchester Ave, Purchase, NY 10577
Phone: 914-848-8668    Fax: 914-948-1019
Dr. Gail M Delasho, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 3030 Westchester Ave, Purchase, NY 10577
Phone: 914-848-8668    Fax: 914-848-8669
Dr. Alexis K Masbou, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 3030 Westchester Ave, Purchase, NY 10577
Phone: 914-607-6270    
Martin David Keltz, M.D.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 3030 Westchester Ave, Purchase, NY 10577
Phone: 914-848-8800    Fax: 914-848-8800
Dr. Alexis Dyana Greene, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 3030 Westchester Ave, Purchase, NY 10577
Phone: 914-607-6270    

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.

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