Diane Duyen T Nguyen, DO - Medicare Medical Oncology in Mcallen, TX

Diane Duyen T Nguyen, DO is a medicare enrolled "Internal Medicine - Medical Oncology" physician in Mcallen, Texas. She went to West Virginia School Of Osteopathic Medicine and graduated in 2001 and has 24 years of diverse experience with area of expertise as Medical Oncology. She is a member of the group practice Ut Physicians and her current practice location is 205 E Toronto Ave, Mcallen, Texas. You can reach out to her office (for appointments etc.) via phone at (956) 296-3990.

Diane Duyen T Nguyen is licensed to practice in Texas (license number M3045) 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 1023233756.

Contact Information

Diane Duyen T Nguyen, DO
205 E Toronto Ave,
Mcallen, TX 78503-1209
(956) 296-3990
(956) 665-6837

Map and Direction




Physician's Profile

Full NameDiane Duyen T Nguyen
GenderFemale
SpecialityMedical Oncology
Experience24 Years
Location205 E Toronto Ave, Mcallen, Texas
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:
  • Diane Duyen T Nguyen attended and graduated from West Virginia School Of Osteopathic Medicine in 2001
  NPI Data:
  • NPI Number: 1023233756
  • Provider Enumeration Date: 04/16/2007
  • Last Update Date: 10/03/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 1052402492
  • Enrollment ID: I20120117000649

Medical Identifiers

Medical identifiers for Diane Duyen T Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023233756NPI-NPPES
4155051OtherTNBCBS OF TN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology DO1698 (Tennessee)Secondary
207RH0003XInternal Medicine - Hematology & Oncology M3045 (Texas)Secondary
207RX0202XInternal Medicine - Medical Oncology M3045 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Memorial Hermann - Texas Medical CenterHouston, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ut Physicians84269603601400

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. Diane Duyen T Nguyen allows following entities to bill medicare on her behalf.
Entity NameUt Physicians
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033157821
PECOS PAC ID: 8426960360
Enrollment ID: O20031107000268
Entity NameMillennium Physicians Association Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255397733
PECOS PAC ID: 3375515455
Enrollment ID: O20040810000051
Entity NameHouston Cancer Treatment & Immunotherapy Center Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528623519
PECOS PAC ID: 5092046185
Enrollment ID: O20191003001337

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. Diane Duyen T Nguyen 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
Diane Duyen T Nguyen, DO
Po Box 531968,
Harlingen, TX 78553-1968

Ph: () -
Diane Duyen T Nguyen, DO
205 E Toronto Ave,
Mcallen, TX 78503-1209

Ph: (956) 296-3990

Reviews and Comments


Internal Medicine Doctors in Mcallen, TX

Dona E Cooper-dockery, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 801 E Nolana Ave, Ste 12, Mcallen, TX 78504
Phone: 956-686-8802    Fax: 956-686-3083
Jasmine Gowarty,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1901 S Col Rowe Blvd, Mcallen, TX 78503
Phone: 956-687-5150    
Dr. Juan Jose Salazar, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 801 E Nolana Ave Ste 2, Mcallen, TX 78504
Phone: 956-687-1177    Fax: 956-687-3290
Daniela Hernandez, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 205 E Toronto Ave, Mcallen, TX 78503
Phone: 956-296-3990    Fax: 956-665-6837
Dr. Encarnacion Rodriguez, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4300 N Mccoll Rd, Mcallen, TX 78504
Phone: 956-630-1170    
Rodrigo Erana, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 101 Us Expressway 83, Mcallen, TX 78503
Phone: 956-661-9840    Fax: 956-661-9841

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.