Dr Robert A Marciniak, MD - Medicare Internal Medicine in San Antonio, TX

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Dr Robert A Marciniak, MD is a medicare enrolled "Internal Medicine - Medical Oncology" physician in San Antonio, Texas. His current practice location is 7979 Wurzbach Rd, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 450-1000.

Dr Robert A Marciniak is licensed to practice in Texas (license number L3005) 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 1700889201.

Contact Information

Dr Robert A Marciniak, MD
7979 Wurzbach Rd,
San Antonio, TX 78229-4427
(210) 450-1000
(210) 450-1150

Map and Direction




Physician's Profile

Full NameDr Robert A Marciniak
GenderMale
SpecialityInternal Medicine - Medical Oncology
Location7979 Wurzbach Rd, 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: 1700889201
  • Provider Enumeration Date: 05/27/2005
  • Last Update Date: 08/18/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 3971587015
  • Enrollment ID: I20040616000082

Medical Identifiers

Medical identifiers for Dr Robert A Marciniak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700889201NPI-NPPES
149475904MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RX0202XInternal Medicine - Medical Oncology L3005 (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 Robert A Marciniak allows following entities to bill medicare on his behalf.
Entity NameFrio Hospital Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952308132
PECOS PAC ID: 4981599693
Enrollment ID: O20040219000995
Entity NameSouthwest Medical Associates, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831299122
PECOS PAC ID: 6204882947
Enrollment ID: O20050325000524
Entity NameConcord Medical Group Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083630610
PECOS PAC ID: 0446296818
Enrollment ID: O20050707000531
Entity NameConcord Medical Group Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750790762
PECOS PAC ID: 7810117223
Enrollment ID: O20141007002567
Entity NameTexas Emergency Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699288811
PECOS PAC ID: 0345508768
Enrollment ID: O20171212003035

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 Robert A Marciniak 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 Robert A Marciniak, MD
7703 Floyd Curl Dr, Mc 7977,
San Antonio, TX 78229-3901

Ph: (210) 257-1400		Dr Robert A Marciniak, MD
7979 Wurzbach Rd,
San Antonio, TX 78229-4427

Ph: (210) 450-1000

Reviews and Comments


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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.