Dr Gian Esteban Diaz Rodriguez, MD - Medicare Obstetrics & Gynecology in San Antonio, TX

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Dr Gian Esteban Diaz Rodriguez, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in San Antonio, Texas. His current practice location is 502 Madison Oak Dr Ste 210, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 481-3000.

Dr Gian Esteban Diaz Rodriguez is licensed to practice in Texas (license number T8800) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1033592787.

Contact Information

Dr Gian Esteban Diaz Rodriguez, MD
502 Madison Oak Dr Ste 210,
San Antonio, TX 78258-4192
(210) 481-3000
Not Available

Map and Direction




Physician's Profile

Full NameDr Gian Esteban Diaz Rodriguez
GenderMale
SpecialityObstetrics & Gynecology - Maternal & Fetal Medicine
Location502 Madison Oak Dr Ste 210, San Antonio, Texas
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1033592787
  • Provider Enumeration Date: 06/30/2015
  • Last Update Date: 08/29/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4183951866
  • Enrollment ID: I20190805001651

Medical Identifiers

Medical identifiers for Dr Gian Esteban Diaz Rodriguez such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033592787NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 036148910 (Illinois)Secondary
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine T8800 (Texas)Primary

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 Gian Esteban Diaz Rodriguez allows following entities to bill medicare on his behalf.
Entity NameThe Board Of Trustees Of The University Of Illinois
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154541936
PECOS PAC ID: 3072422716
Enrollment ID: O20031201000021

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 Gian Esteban Diaz Rodriguez 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 Gian Esteban Diaz Rodriguez, MD
Po Box 2271,
San Antonio, TX 78298-2271

Ph: (210) 481-3000		Dr Gian Esteban Diaz Rodriguez, MD
502 Madison Oak Dr Ste 210,
San Antonio, TX 78258-4192

Ph: (210) 481-3000

Reviews and Comments


Obstetrics & Gynecology Doctors in San Antonio, TX

Stephanie Schaefer, M.D.
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Phone: 210-257-1400    Fax: 210-257-1428
Dr. Lynn Tavares Parente, M.D.
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Practice Location: 502 Madison Oak Dr Ste 240, San Antonio, TX 78258
Phone: 210-495-1900    Fax: 210-650-5975
Dr. Antonio Santillan-gomez, M.D.
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Practice Location: 4411 Medical Dr, Ste. 100, San Antonio, TX 78229
Phone: 210-595-5300    Fax: 210-595-5301
Dr. Rorey Marie Walsh, M.D.
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Practice Location: 4502 Medical Dr, San Antonio, TX 78229
Phone: 210-616-8100    
Dr. Charles A Holshouser Jr., M.D.
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Medicare: Medicare Enrolled
Practice Location: 4499 Medical Dr #183, San Antonio, TX 78229
Phone: 210-692-5200    Fax: 210-692-7725
Patrick Lane Williamson, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 7950 Floyd Curl Drive, Suite 300, San Antonio, TX 78229
Phone: 210-615-6505    Fax: 210-615-1321

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.