Stefanie M Diaz, MD - Medicare Nephrology in Tyler, TX

Stefanie M Diaz, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Tyler, Texas. She graduated from medical school in 1992 and has 32 years of diverse experience with area of expertise as Nephrology. She is a member of the group practice Etmc Physician Group, Inc., Tyler Nephrology Associates Pa and her current practice location is 1133 Medical Dr, Tyler, Texas. You can reach out to her office (for appointments etc.) via phone at (903) 595-5486.

Stefanie M Diaz is licensed to practice in Texas (license number K8739) 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 1689723637.

Contact Information

Stefanie M Diaz, MD
1133 Medical Dr,
Tyler, TX 75701-2130
(903) 595-5486
(903) 595-5128

Map and Direction




Physician's Profile

Full NameStefanie M Diaz
GenderFemale
SpecialityNephrology
Experience32 Years
Location1133 Medical Dr, Tyler, 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:
  • Stefanie M Diaz graduated from medical school in 1992
  NPI Data:
  • NPI Number: 1689723637
  • Provider Enumeration Date: 01/09/2007
  • Last Update Date: 04/20/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0547322638
  • Enrollment ID: I20100108000832

Medical Identifiers

Medical identifiers for Stefanie M Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689723637NPI-NPPES
200214910 AMedicaidOK
040253901MedicaidTX
390006572OtherRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology K8739 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Renal Care Group Sulphur SpringsSulphur springs, TXDialysis facility
Fresenius Medical Care Tyler Home DialysisTyler, TXDialysis facility
Christus Mother Frances HospitalTyler, TXHospital
Ut Health East Texas Tyler Regional HospitalTyler, TXHospital
Christus Mother Frances Hospital Sulphur SpringsSulphur springs, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Etmc Physician Group, Inc.4486915600276
Tyler Nephrology Associates Pa690186224224

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. Stefanie M Diaz allows following entities to bill medicare on her behalf.
Entity NameTyler Nephrology Associates Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942360326
PECOS PAC ID: 6901862242
Enrollment ID: O20041208000236
Entity NameEtmc Physician Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609382662
PECOS PAC ID: 4486915600
Enrollment ID: O20180305002106

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. Stefanie 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
Stefanie M Diaz, MD
1133 Medical Dr,
Tyler, TX 75701-2130

Ph: (903) 595-5486
Stefanie M Diaz, MD
1133 Medical Dr,
Tyler, TX 75701-2130

Ph: (903) 595-5486

Reviews and Comments


Internal Medicine Doctors in Tyler, TX

Ifeatu Uchenna Oti, MD
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 1133 Medical Dr, Tyler, TX 75701
Phone: 903-595-5486    Fax: 903-595-5128
Preetham Reddy Muskula, MD
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 2608 Mcdonald Rd, Tyler, TX 75701
Phone: 903-595-5514    Fax: 903-262-3715
Dr. Varalaxmi Bhavani Nannaka, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 912 S Fleishel Ave, Tyler, TX 75701
Phone: 903-592-6901    
David A Brickey, DO
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 800 E Dawson St, Tyler, TX 75701
Phone: 903-525-1914    
Randy Craig Randall, MD
Nephrology
Medicare: Medicare Enrolled
Practice Location: 1783 Troup Highway, Tyler, TX 75701
Phone: 903-595-2283    Fax: 903-595-1063
Nabeel K Ahmed, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 1133 Medical Dr, Tyler, TX 75701
Phone: 903-595-5486    Fax: 903-595-5128
Dr. Amanda Nicole Long, D.O.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 619 S Fleishel Ave, Ste 327, Tyler, TX 75701
Phone: 903-510-1173    

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.