Sylvia Emma Keiser, DO - Medicare Gastroenterology in San Antonio, TX

Sylvia Emma Keiser, DO is a medicare enrolled "Internal Medicine - Gastroenterology" physician in San Antonio, Texas. She graduated from medical school in 2020 and has 6 years of diverse experience with area of expertise as Gastroenterology. Her current practice location is 8435 Wurzbach Rd, San Antonio, Texas. You can reach out to her office (for appointments etc.) via phone at (210) 450-9800.

Sylvia Emma Keiser is licensed to practice in Texas (license number W6278) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1366063463.

Contact Information

Sylvia Emma Keiser, DO
8435 Wurzbach Rd,
San Antonio, TX 78229-3921
(210) 450-9800
Not Available

Map and Direction




Physician's Profile

Full NameSylvia Emma Keiser
GenderFemale
SpecialityGastroenterology
Experience6 Years
Location8435 Wurzbach Rd, San Antonio, Texas
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Sylvia Emma Keiser graduated from medical school in 2020
  NPI Data:
  • NPI Number: 1366063463
  • Provider Enumeration Date: 04/29/2020
  • Last Update Date: 06/24/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 4385115740
  • Enrollment ID: I20260605002841

Medical Identifiers

Medical identifiers for Sylvia Emma Keiser such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366063463NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine W6278 (Texas)Secondary
207RG0100XInternal Medicine - Gastroenterology W6278 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Health SystemSan antonio, TXHospital

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. Sylvia Emma Keiser 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
Sylvia Emma Keiser, DO
8435 Wurzbach Rd,
San Antonio, TX 78229-3921

Ph: (210) 450-9800
Sylvia Emma Keiser, DO
8435 Wurzbach Rd,
San Antonio, TX 78229-3921

Ph: (210) 450-9800

Reviews and Comments


Internal Medicine Doctors in San Antonio, TX

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Dr. Jonathan Edward Slovik, MD
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Phone: 210-358-4000    Fax: 210-358-8002
Mr. Paul Joseph Fanucchi, NP
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Practice Location: Marianist Residence, 520 Fondham, San Antonio, TX 78228
Phone: 210-434-4157    Fax: 210-433-6005

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.