Dr Anna Elizabeth O'connor, MD - Medicare Allergy/immunology in Round Rock, TX

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Dr Anna Elizabeth O'connor, MD is a medicare enrolled "Allergy & Immunology" physician in Round Rock, Texas. She went to University Of Mississippi School Of Medicine and graduated in 2020 and has 5 years of diverse experience with area of expertise as Allergy/immunology. Her current practice location is 303 E Main St, Round Rock, Texas. You can reach out to her office (for appointments etc.) via phone at (512) 732-2774.

Dr Anna Elizabeth O'connor is licensed to practice in Texas (license number V7268) 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 1053931345.

Contact Information

Dr Anna Elizabeth O'connor, MD
303 E Main St,
Round Rock, TX 78664-5246
(512) 732-2774
(512) 344-9221

Map and Direction




Physician's Profile

Full NameDr Anna Elizabeth O'connor
GenderFemale
SpecialityAllergy/immunology
Experience5 Years
Location303 E Main St, Round Rock, 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:
  • Dr Anna Elizabeth O'connor attended and graduated from University Of Mississippi School Of Medicine in 2020
  NPI Data:
  • NPI Number: 1053931345
  • Provider Enumeration Date: 04/16/2020
  • Last Update Date: 05/15/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 3870923329
  • Enrollment ID: I20250520000131

Medical Identifiers

Medical identifiers for Dr Anna Elizabeth O'connor such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1053931345NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics V7268 (Texas)Secondary
207K00000XAllergy & Immunology V7268 (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 Anna Elizabeth O'connor allows following entities to bill medicare on her behalf.
Entity NameGreater Austin Allergy, Asthma & Immunology Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275978306
PECOS PAC ID: 3274890512
Enrollment ID: O20171122000472

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 Anna Elizabeth O'connor 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 Anna Elizabeth O'connor, MD
303 E Main St,
Round Rock, TX 78664-5246

Ph: (512) 732-2774		Dr Anna Elizabeth O'connor, MD
303 E Main St,
Round Rock, TX 78664-5246

Ph: (512) 732-2774

Reviews and Comments


Allergy & Immunology Doctors in Round Rock, TX

Dr. Anthony Robert Henry, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 2000 N Mays St Ste 109, Round Rock, TX 78664
Phone: 254-690-2800    Fax: 254-690-5401
Jeffrey Stewart Hallett, M.D.
Allergy & Immunology
Medicare: Medicare Enrolled
Practice Location: 16000 Park Valley Drive, Suite #130, Round Rock, TX 78681
Phone: 512-244-3422    Fax: 512-255-6829
Dr. Sumit Bose, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 425 University Blvd, Round Rock, TX 78665
Phone: 512-509-0200    
Dr. Veena Rajashekhar, M.D.
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 970 Hesters Crossing Rd, Suite 100, Round Rock, TX 78681
Phone: 512-248-8864    Fax: 512-906-2751
Dr. Grace P Tamesis, M.D., MPH
Allergy & Immunology
Medicare: Medicare Enrolled
Practice Location: 16010 Park Valley Dr, Suite 300, Round Rock, TX 78681
Phone: 303-601-5399    
Nikki Patel, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 303 E Main St, Round Rock, TX 78664
Phone: 512-732-2774    Fax: 605-312-3001
Niharika Marpu, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 940 Hesters Crossing Rd, Round Rock, TX 78681
Phone: 512-244-9024    Fax: 512-406-7342

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.