Grace Yu Yi Gu, MD - Medicare Addiction Medicine in New York, NY

Grace Yu Yi Gu, MD is a medicare enrolled "Family Medicine - Addiction Medicine" physician in New York, New York. She graduated from medical school in 2017 and has 7 years of diverse experience with area of expertise as Addiction Medicine. She is a member of the group practice Icahn School Of Medicine At Mount Sinai and her current practice location is 45 Rivington St, New York, New York. You can reach out to her office (for appointments etc.) via phone at (332) 243-1000.

Grace Yu Yi Gu is licensed to practice in New York (license number 307602) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1114454899.

Contact Information

Grace Yu Yi Gu, MD
45 Rivington St,
New York, NY 10002-1304
(332) 243-1000
Not Available

Map and Direction




Physician's Profile

Full NameGrace Yu Yi Gu
GenderFemale
SpecialityAddiction Medicine
Experience7 Years
Location45 Rivington St, New York, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Grace Yu Yi Gu graduated from medical school in 2017
  NPI Data:
  • NPI Number: 1114454899
  • Provider Enumeration Date: 05/12/2017
  • Last Update Date: 10/30/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1052663580
  • Enrollment ID: I20231113001868

Medical Identifiers

Medical identifiers for Grace Yu Yi Gu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1114454899NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207QA0401XFamily Medicine - Addiction Medicine 307602 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mount Sinai Beth IsraelNew york, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Icahn School Of Medicine At Mount Sinai22646910702339

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. Grace Yu Yi Gu allows following entities to bill medicare on her behalf.
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033482518
PECOS PAC ID: 2264691070
Enrollment ID: O20120927000155

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. Grace Yu Yi Gu 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
Grace Yu Yi Gu, MD
45 Rivington St,
New York, NY 10002-1304

Ph: () -
Grace Yu Yi Gu, MD
45 Rivington St,
New York, NY 10002-1304

Ph: (332) 243-1000

Reviews and Comments


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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.

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