Dr Marnie Lashae Ross, MD - Medicare Internal Medicine in San Antonio, TX

Dr Marnie Lashae Ross, MD is a medicare enrolled "Internal Medicine" physician in San Antonio, Texas. Her current practice location is 5835 Callaghan Rd, Suite 400, San Antonio, Texas. You can reach out to her office (for appointments etc.) via phone at (210) 314-0527.

Dr Marnie Lashae Ross is licensed to practice in Texas (license number J5634) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1003891631.

Contact Information

Dr Marnie Lashae Ross, MD
5835 Callaghan Rd, Suite 400,
San Antonio, TX 78228-1125
(210) 314-0527
Not Available

Map and Direction




Physician's Profile

Full NameDr Marnie Lashae Ross
GenderFemale
SpecialityInternal Medicine
Location5835 Callaghan 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: 1003891631
  • Provider Enumeration Date: 12/06/2005
  • Last Update Date: 09/28/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 8426001512
  • Enrollment ID: I20071207000504

Medical Identifiers

Medical identifiers for Dr Marnie Lashae Ross such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003891631NPI-NPPES
0471815-02MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine J5634 (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 Marnie Lashae Ross allows following entities to bill medicare on her behalf.
Entity NameOptum Care Services Company
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912199415
PECOS PAC ID: 7214013721
Enrollment ID: O20130816000344

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 Marnie Lashae Ross 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 Marnie Lashae Ross, MD
5835 Callaghan Rd, Suite 400,
San Antonio, TX 78228-1125

Ph: (210) 314-0527
Dr Marnie Lashae Ross, MD
5835 Callaghan Rd, Suite 400,
San Antonio, TX 78228-1125

Ph: (210) 314-0527

Reviews and Comments


Internal Medicine Doctors in San Antonio, TX

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Mr. Paul Joseph Fanucchi, NP
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Socrates B Aramburu, MD
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Phone: 210-271-3204    Fax: 210-222-2761
David H White, M.D.
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Practice Location: 6800 Ih 10 W, Ste 350, San Antonio, TX 78201
Phone: 210-616-0801    

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.