Dr Keith Johnson, MD - Medicare Emergency Medicine in San Antonio, TX

Dr Keith Johnson, MD is a medicare enrolled "Emergency Medicine" physician in San Antonio, Texas. His current practice location is 1904 Grandstand Dr, Suite 400, San Antonio, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 520-8071.

Dr Keith Johnson is licensed to practice in Texas (license number G3499) 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 1912966615.

Contact Information

Dr Keith Johnson, MD
1904 Grandstand Dr, Suite 400,
San Antonio, TX 78238-4508
(210) 520-8071
(210) 521-7688

Map and Direction




Physician's Profile

Full NameDr Keith Johnson
GenderMale
SpecialityEmergency Medicine
Location1904 Grandstand Dr, 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: 1912966615
  • Provider Enumeration Date: 03/21/2006
  • Last Update Date: 11/23/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 7517000458
  • Enrollment ID: I20100201000669

Medical Identifiers

Medical identifiers for Dr Keith Johnson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912966615NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine G3499 (Texas)Primary
2083P0500XPreventive Medicine - Preventive Medicine/occupational Environmental Medicine G3499 (Texas)Secondary

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 Keith Johnson allows following entities to bill medicare on his behalf.
Entity NameSouthwest Medical Associates, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831299122
PECOS PAC ID: 6204882947
Enrollment ID: O20050325000524

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 Keith Johnson 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 Keith Johnson, MD
28409 Quadrille Ln,
Fair Oaks Ranch, TX 78015-4633

Ph: (210) 520-8070
Dr Keith Johnson, MD
1904 Grandstand Dr, Suite 400,
San Antonio, TX 78238-4508

Ph: (210) 520-8071

Reviews and Comments


Emergency Medicine Doctors in San Antonio, TX

Dr. Jeff Sensenig, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 8401 Datapoint Dr, Ste 500, San Antonio, TX 78229
Phone: 210-614-0180    Fax: 210-615-7170
Adam Clemens Benzing, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 7719 S I-35 Frontage Road, San Antonio, TX 78232
Phone: 210-572-2955    
Dr. John F. Bragan, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1610 Wood Quail, San Antonio, TX 78248
Phone: 210-416-4420    Fax: 210-492-4317
Dr. Joseph Michael Martin, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 310 Alamosa Ave, San Antonio, TX 78210
Phone: 210-269-9372    
Luke Franklin Husby, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4502 Medical Dr, San Antonio, TX 78229
Phone: 210-450-9000    
Dr. Erica Lynn Hudson, D.O.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 7930 Floyd Curl Dr, San Antonio, TX 78229
Phone: 210-297-5000    
Thomas Rex Bosen, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7700 Floyd Curl Dr, San Antonio, TX 78229
Phone: 210-233-6363    

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.