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Edit this profileAt a glance
- 2400 Patterson St, Suite 502, Nashville, TN 37203
About Dr. Johnston
Thomas S. Johnston, MD is a healthcare provider in Nashville, TN specializing in internal medicine. Thomas trained at Vanderbilt University School of Medicine, graduating in 1988. Thomas is also listed as specializing in cardiovascular disease. According to Medicare claims data, Thomas cared for 2,091 Medicare patients across 3,328 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report. This provider record is associated with NPI 1023103462.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (615) 515-1900
- Email not available
Practice Locations
2400 PATTERSON ST SUITE 502
Nashville, TN 37203
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
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
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
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
Procedures Most Often Billed to Medicare
3,328 services · 2,091 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
31 | As often as other peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
458 | More than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
177 | More than most peers in Internal Medicine |
| Ultrasound of heart with probe in esophagus, with report | Treatment | 93312 |
167 | More than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
138 | More often than most peers in Internal Medicine |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
62 | More often than most peers in Internal Medicine |
| External shock to heart to regulate heart beat | Treatment | 92960 |
52 | More than most peers in Internal Medicine |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
36 | As often as other peers in Internal Medicine |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
15 | Less often than most peers in Internal Medicine |
| Ultrasound of heart, follow-up | Treatment | 93308 |
11 | Less often than most peers in Internal Medicine |
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 7
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 27 related providers in 4 groups
Other internists in Nashville 7
Same specialty, same city.
Trained at Vanderbilt University School of Medicine 6
Other providers in the same specialty who trained at the same institution.
Class of 1988 at Vanderbilt University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine studies of heart muscle at rest and with stress and spect 7
Providers in TN who bill this service to Medicare most often.
Common questions
What does Dr. Johnston specialize in?
Dr. Johnston is an internist in Nashville, TN. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Johnston located?
Dr. Johnston is listed at 2400 Patterson St Suite 502, Nashville, TN 37203. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Johnston's phone number?
The number on file is (615) 515-1900. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Johnston's NPI number?
Dr. Johnston's National Provider Identifier is 1023103462. 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. Johnston go to medical school?
Dr. Johnston attended Vanderbilt University School of Medicine, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Johnston been practicing?
Dr. Johnston has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Johnston do most often?
According to Medicare billing data, Dr. Johnston performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and ultrasound of heart with color-depicted blood flow, rate and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Johnston confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnston. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.