Marjorie M Diaz, MD - Medicare Emergency Medicine in Bronx, NY

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Marjorie M Diaz, MD is a medicare enrolled "Emergency Medicine" physician in Bronx, New York. She graduated from medical school in 2021 and has 5 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice United Medical Associates Pc and her current practice location is 234 E 149th St, Bronx, New York. You can reach out to her office (for appointments etc.) via phone at (718) 579-5000.

Marjorie M Diaz is licensed to practice in New York (license number 334193) 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 1609456763.

Contact Information

Marjorie M Diaz, MD
234 E 149th St,
Bronx, NY 10451-5504
(718) 579-5000
Not Available

Map and Direction




Physician's Profile

Full NameMarjorie M Diaz
GenderFemale
SpecialityEmergency Medicine
Experience5 Years
Location234 E 149th St, Bronx, 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:
  • Marjorie M Diaz graduated from medical school in 2021
  NPI Data:
  • NPI Number: 1609456763
  • Provider Enumeration Date: 04/13/2021
  • Last Update Date: 08/28/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 1658887179
  • Enrollment ID: I20250722002283

Medical Identifiers

Medical identifiers for Marjorie M Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609456763NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 334193 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
United Health Services Hospitals, IncBinghamton, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
United Medical Associates Pc0345144978229

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. Marjorie M Diaz allows following entities to bill medicare on her behalf.
Entity NameUnited Medical Associates PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013972801
PECOS PAC ID: 0345144978
Enrollment ID: O20031125000020

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. Marjorie M Diaz 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
Marjorie M Diaz, MD
736 W 173rd St Apt 42b,
New York, NY 10032-1117

Ph: (347) 989-5579		Marjorie M Diaz, MD
234 E 149th St,
Bronx, NY 10451-5504

Ph: (718) 579-5000

Reviews and Comments


Emergency Medicine Doctors in Bronx, NY

Dr. Thomas Henry Parry, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 234 E 149th St, Bronx, NY 10451
Phone: 718-579-6010    
Dr. Sarah G Jamison, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1400 Pelham Pkwy S, Building 6, Suite B125, Bronx, NY 10461
Phone: 718-918-5820    
May Yee Helman, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1650 Grand Concourse, Bronx, NY 10457
Phone: 718-992-7669    
Dr. John Ellis, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4422 Third Ave, Bronx, NY 10457
Phone: 718-960-9000    
Dr. Angelica Rosa Angiulli, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1825 Eastchester Rd, Bronx, NY 10461
Phone: 718-904-2904    
Dr. Patrick Spencer Eiben, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1400 Pelham Pkwy S, Building 6//suite B125, Bronx, NY 10461
Phone: 718-918-5820    
Nai Li, D.O.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 4422 3rd Ave, Bronx, NY 10457
Phone: 718-960-9000    

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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