Mark W Nelson, MD - Medicare Internal Medicine in San Antonio, TX

Mark W Nelson, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in San Antonio, Texas. His current practice location is 3338 Oakwell Court, Suite 114, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 656-5000.

Mark W Nelson is licensed to practice in Texas (license number G7857) 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 1538140090.

Contact Information

Mark W Nelson, MD
3338 Oakwell Court, Suite 114,
San Antonio, TX 78218-3019
(210) 656-5000
(210) 656-7892

Map and Direction




Physician's Profile

Full NameMark W Nelson
GenderMale
SpecialityInternal Medicine - Rheumatology
Location3338 Oakwell Court, 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: 1538140090
  • Provider Enumeration Date: 11/10/2005
  • Last Update Date: 10/22/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3577586510
  • Enrollment ID: I20060105000388

Medical Identifiers

Medical identifiers for Mark W Nelson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538140090NPI-NPPES
114876902MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology G7857 (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. Mark W Nelson 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
Mark W Nelson, MD
3338 Oakwell Court, Suite 114,
San Antonio, TX 78218-3019

Ph: (210) 656-5000
Mark W Nelson, MD
3338 Oakwell Court, Suite 114,
San Antonio, TX 78218-3019

Ph: (210) 656-5000

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.

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