Rosemary Castoreno, MD - Medicare Internal Medicine in San Antonio, TX

Rosemary Castoreno, MD is a medicare enrolled "Internal Medicine" physician in San Antonio, Texas. She graduated from medical school in 2003 and has 21 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Austin Medical Associates X Llc and her current practice location is 1611 N Alamo St, San Antonio, Texas. You can reach out to her office (for appointments etc.) via phone at (210) 333-0733.

Rosemary Castoreno is licensed to practice in Texas (license number M3966) 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 1225135957.

Contact Information

Rosemary Castoreno, MD
1611 N Alamo St,
San Antonio, TX 78215-1211
(210) 333-0733
(210) 333-0763

Map and Direction




Physician's Profile

Full NameRosemary Castoreno
GenderFemale
SpecialityInternal Medicine
Experience21 Years
Location1611 N Alamo St, San Antonio, 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:
  • Rosemary Castoreno graduated from medical school in 2003
  NPI Data:
  • NPI Number: 1225135957
  • Provider Enumeration Date: 09/17/2006
  • Last Update Date: 11/09/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8921009697
  • Enrollment ID: I20220506000296

Medical Identifiers

Medical identifiers for Rosemary Castoreno such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225135957NPI-NPPES
183531602MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 35.138061 (Ohio)Secondary
207R00000XInternal Medicine C168306 (California)Secondary
207R00000XInternal Medicine M3966 (Texas)Primary
208M00000XHospitalist M3966 (Texas)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Austin Medical Associates X Llc812347746025

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. Rosemary Castoreno allows following entities to bill medicare on her behalf.
Entity NameGaps Health Fl
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174299655
PECOS PAC ID: 5193123156
Enrollment ID: O20211006001977
Entity NameCareconnectmd Florida P.a.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912632886
PECOS PAC ID: 7911389838
Enrollment ID: O20220809000521
Entity NameAustin Medical Associates X Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134995830
PECOS PAC ID: 8123477460
Enrollment ID: O20231212000644

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. Rosemary Castoreno 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
Rosemary Castoreno, MD
4102 S New Braunfels Ave Ste 110-482,
San Antonio, TX 78223-1707

Ph: (210) 333-0733
Rosemary Castoreno, MD
1611 N Alamo St,
San Antonio, TX 78215-1211

Ph: (210) 333-0733

Reviews and Comments


Internal Medicine Doctors in San Antonio, TX

Dr. Dennis Anthony Ruff, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 8307 Gault Ln, San Antonio, TX 78209
Phone: 210-798-5112    
Eduardo N. Pollono, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4502 Medical Dr, San Antonio, TX 78229
Phone: 210-358-4000    Fax: 210-567-6960
Zarema J Singson, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 5223 Hamilton Wolfe Rd, San Antonio, TX 78229
Phone: 210-614-1234    Fax: 210-614-0952
Sapna Raghunathan, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8300 Floyd Curl Dr, San Antonio, TX 78229
Phone: 210-450-9490    Fax: 210-450-6065
Dr. Jonathan Edward Slovik, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4502 Medical Dr, San Antonio, TX 78229
Phone: 210-358-4000    Fax: 210-358-0647
Mr. Paul Joseph Fanucchi, NP
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Marianist Residence, 520 Fondham, San Antonio, TX 78228
Phone: 210-434-4157    Fax: 210-433-6005
Socrates B Aramburu, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1100 Mccullough Ave, Suite 300, San Antonio, TX 78212
Phone: 210-271-3204    Fax: 210-222-2761

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.