Physician Profile
Mark L. Thornton, MD
Unclaimed ProfileAbout Dr. Thornton
Mark L. Thornton, MD is a healthcare provider in San Antonio, TX specializing in internal medicine. Mark trained at University of Texas Medical Branch at Galveston, graduating in 1980. According to Medicare claims data, Mark cared for 439 Medicare patients across 584 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, administration of influenza virus vaccine, and influenza vaccine, inactivated.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (210) 822-2004
- Email not available
Practice Locations
7720 JONES MALTSBERGER RD STE. # 110
San Antonio, TX 78216
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
Procedures Most Often Billed to Medicare
584 services · 439 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
39 |
| Influenza vaccine, inactivated | Treatment | 90653 |
115 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
11 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
264 |
| Administration of influenza virus vaccine | Billing code | G0008 |
116 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
39 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other internists in San Antonio 8
Same specialty, same city.
Trained at University of Texas Medical Branch at Galveston 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at University of Texas Medical Branch at Galveston 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in TX who bill this service to Medicare most often.
- Quest Diagnostics Clinical Laboratories INC
- Clinical Pathology Laboratories, INC.
- Quest Diagnostics Clinical Laboratories INC
- Laboratory Corporation of America
- Laboratory Corporation of America
- Lone Star Pathology PLLC
- Medical Clinic of Houston, LLP
- The University of Texas Southwestern Medical Center at Dallas
Common questions
What kind of doctor is Dr. Thornton?
Dr. Thornton is an internist in San Antonio, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Dr. Thornton's address?
Dr. Thornton is listed at 7720 Jones Maltsberger Rd Ste. # 110, San Antonio, TX 78216. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Thornton?
The number on file is (210) 822-2004. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Thornton's NPI number?
Dr. Thornton's National Provider Identifier is 1669552790. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Thornton train?
Dr. Thornton attended University of Texas Medical Branch at Galveston, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Thornton been practicing?
Dr. Thornton has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Thornton perform?
According to Medicare billing data, Dr. Thornton performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as influenza vaccine, inactivated and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Thornton confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Thornton. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.