Dr Gerard Anthony Baltazar, DO - Medicare General Surgery in Greenwich, CT

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Dr Gerard Anthony Baltazar, DO is a medicare enrolled "Surgery" physician in Greenwich, Connecticut. He graduated from medical school in 2007 and has 19 years of diverse experience with area of expertise as General Surgery. He is a member of the group practice New York University and his current practice location is 5 Perryridge Rd, Greenwich, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 863-3000.

Dr Gerard Anthony Baltazar is licensed to practice in New York (license number 255827) 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 1255661211.

Contact Information

Dr Gerard Anthony Baltazar, DO
5 Perryridge Rd,
Greenwich, CT 06830-4608
(203) 863-3000
Not Available

Map and Direction




Physician's Profile

Full NameDr Gerard Anthony Baltazar
GenderMale
SpecialityGeneral Surgery
Experience19 Years
Location5 Perryridge Rd, Greenwich, Connecticut
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 Gerard Anthony Baltazar graduated from medical school in 2007
  NPI Data:
  • NPI Number: 1255661211
  • Provider Enumeration Date: 01/13/2010
  • Last Update Date: 01/07/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 6305151796
  • Enrollment ID: I20150813011496

Medical Identifiers

Medical identifiers for Dr Gerard Anthony Baltazar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255661211NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 255827 (New York)Primary
2086S0127XSurgery - Trauma Surgery 255827 (New York)Secondary
2086S0102XSurgery - Surgical Critical Care 255827 (New York)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Nyu Langone Health Home CareMineola, NYHome health agency
New York University Langone Medical CenterNew york, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
New York University13552324225027

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 Gerard Anthony Baltazar allows following entities to bill medicare on his behalf.
Entity NameNew York University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285826438
PECOS PAC ID: 1355232422
Enrollment ID: O20081202000185
Entity NameNew York University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285826438
PECOS PAC ID: 1355232422
Enrollment ID: O20090822000026

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 Gerard Anthony Baltazar 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 Gerard Anthony Baltazar, DO
405 Wilmot Rd,
New Rochelle, NY 10804-1019

Ph: (646) 596-6161		Dr Gerard Anthony Baltazar, DO
5 Perryridge Rd,
Greenwich, CT 06830-4608

Ph: (203) 863-3000

Reviews and Comments


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Dr. Athanassios Petrotos, M.D.
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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.