Dr Margaret Greer Whisenant, MD - Medicare Internal Medicine in San Marcos, TX

Dr Margaret Greer Whisenant, MD is a medicare enrolled "Internal Medicine" physician in San Marcos, Texas. Her current practice location is 601 University Dr, Student Health Center, San Marcos, Texas. You can reach out to her office (for appointments etc.) via phone at (512) 245-2161.

Dr Margaret Greer Whisenant is licensed to practice in Texas (license number G3904) 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 1811094733.

Contact Information

Dr Margaret Greer Whisenant, MD
601 University Dr, Student Health Center,
San Marcos, TX 78666-4684
(512) 245-2161
(512) 245-9288

Map and Direction




Physician's Profile

Full NameDr Margaret Greer Whisenant
GenderFemale
SpecialityInternal Medicine
Location601 University Dr, San Marcos, Texas
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1811094733
  • Provider Enumeration Date: 09/20/2006
  • Last Update Date: 05/16/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 3476850199
  • Enrollment ID: I20160324000069

Medical Identifiers

Medical identifiers for Dr Margaret Greer Whisenant such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811094733NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G3904 (Texas)Primary

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 Margaret Greer Whisenant 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 Margaret Greer Whisenant, MD
601 University Dr, Student Health Center,
San Marcos, TX 78666-4684

Ph: (512) 245-2161
Dr Margaret Greer Whisenant, MD
601 University Dr, Student Health Center,
San Marcos, TX 78666-4684

Ph: (512) 245-2161

Reviews and Comments


Internal Medicine Doctors in San Marcos, TX

Lance Monteau, M.D.
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Phone: 512-393-3325    Fax: 512-393-3328
Dr. William K Deschner, M.D.
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Practice Location: 1305 Wonder World Dr, Suite 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-754-8680
Frederick Earl Dixon, MD
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Jose Mario Ayala, MD
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Practice Location: 1301 Wonder World Dr, San Marcos, TX 78666
Phone: 512-353-8979    
Carlos Enrique Zamora, M.D.
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Practice Location: 2800 Airport, Hwy 21, San Marcos, TX 78666
Phone: 512-396-6513    
Dr. Carlos Neghme, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1305 Wonder World Dr, Suite 200, San Marcos, TX 78666
Phone: 512-754-8676    Fax: 512-754-8680
Mrs. Gladys C Weng, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1320 Wonder World Dr, 101, San Marcos, TX 78666
Phone: 512-396-3911    Fax: 512-353-8052

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).

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