Jeffrey Ching-ray Chang, MD - Medicare Obstetrics & Gynecology in San Antonio, TX

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Jeffrey Ching-ray Chang, MD is a medicare enrolled "Obstetrics & Gynecology" physician in San Antonio, Texas. His current practice location is 502 Madison Oak Dr Ste 240, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 653-5501.

Jeffrey Ching-ray Chang is licensed to practice in Texas (license number T5280) 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 1134625361.

Contact Information

Jeffrey Ching-ray Chang, MD
502 Madison Oak Dr Ste 240,
San Antonio, TX 78258-4086
(210) 653-5501
Not Available

Map and Direction




Physician's Profile

Full NameJeffrey Ching-ray Chang
GenderMale
SpecialityObstetrics & Gynecology
Location502 Madison Oak Dr Ste 240, 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: 1134625361
  • Provider Enumeration Date: 04/05/2018
  • Last Update Date: 09/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7315329364
  • Enrollment ID: I20220808001195

Medical Identifiers

Medical identifiers for Jeffrey Ching-ray Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134625361NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VX0000XObstetrics & Gynecology - Obstetrics T5280 (Texas)Secondary
207V00000XObstetrics & Gynecology T5280 (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. Jeffrey Ching-ray Chang allows following entities to bill medicare on his behalf.
Entity NameSynergy Healthcare Associates, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356584544
PECOS PAC ID: 9133271216
Enrollment ID: O20090721000415

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. Jeffrey Ching-ray Chang 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
Jeffrey Ching-ray Chang, MD
14100 San Pedro Ave Ste 200,
San Antonio, TX 78232-4362

Ph: (210) 653-5501		Jeffrey Ching-ray Chang, MD
502 Madison Oak Dr Ste 240,
San Antonio, TX 78258-4086

Ph: (210) 653-5501

Reviews and Comments


Obstetrics & Gynecology Doctors in San Antonio, TX

Stephanie Schaefer, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 525 Oak Centre Dr Ste 300, San Antonio, TX 78258
Phone: 210-402-6022    
James Paine, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 7703 Floyd Curl Dr, San Antonio, TX 78229
Phone: 210-257-1400    Fax: 210-257-1428
Dr. Lynn Tavares Parente, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
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.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
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.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 4502 Medical Dr, San Antonio, TX 78229
Phone: 210-616-8100    
Dr. Charles A Holshouser Jr., M.D.
Obstetrics & Gynecology
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
Obstetrics & Gynecology
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.