Dr. Johnson Thomas, M.D.
Endocrinology & Diabetes (Endocrinology, Diabetes & Metabolism Physician)
- Medicare participating
At a glance
- Years since graduation
- 19
- In the NPI registry since
- 2009
- Medicare patients seen, 2024
- 441
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2009Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Endocrinology, Diabetes & Metabolism Physician primary
MO license 2013029753
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mercy Hospital Springfield Springfield, MO
- Mercy St Francis Hospital Mountain View, MO
- Mercy Hospital - Cassville Cassville, MO
Medical groups
- Mercy Clinic Springfield Communities (1,120 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 441
- Services billed
- 1,123
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 382 | 300 |
| New patient office or other outpatient visit, 45-59 minutes | 123 | 123 |
| Established patient office or other outpatient visit, 20-29 minutes | 53 | 52 |
| Dxa bone density measurement of hip, pelvis, spine | 43 | 43 |
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 33 | 27 |
| Ultrasound scan of head and neck soft tissue | 29 | 28 |
| Fine needle aspiration biopsy using ultrasound guidance, first growth | 27 | 27 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Levothyroxine Sodium Other prescribers in East Meadow, NY | 729 |
| Jardiance (empagliflozin) Other prescribers in East Meadow, NY | 359 |
| Ozempic (semaglutide) Other prescribers in East Meadow, NY | 357 |
| Lantus Solostar (insulin glargine,hum.rec.anlog) Other prescribers in East Meadow, NY | 246 |
| Metformin Hcl Other prescribers in East Meadow, NY | 172 |
| Methimazole Other prescribers in East Meadow, NY | 148 |
| Mounjaro (tirzepatide) Other prescribers in East Meadow, NY | 147 |
| Atorvastatin Calcium Other prescribers in East Meadow, NY | 118 |
| Testosterone Cypionate Other prescribers in East Meadow, NY | 113 |
| Alendronate Sodium Other prescribers in East Meadow, NY | 102 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 10 companies reported 17 payments worth $280 in total to this clinician.
| Abbott Laboratories | $64.49 |
|---|---|
| Sequel Med Tech, LLC | $45.80 |
| Kyowa Kirin, Inc. | $30.93 |
| Insulet Corporation | $29.56 |
| Pfizer Inc. | $29.32 |
| Tandem Diabetes Care, Inc. | $22.14 |
| Neurocrine Biosciences, Inc. | $18.73 |
| Medtronic, Inc. | $15.58 |
| Food and Beverage | $249 |
|---|---|
| Education | $30.93 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Kyowa Kirin, Inc. Mar 4, 2025 | Education CRYSVITA · FIBROBLAST GROWTH FACTOR 23 FGF23 BLOCKING ANTIBODY · in-kind | $30.93 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 3 industry-funded studies in 2025, from 2 companies. The companies reported $89,364 in research payments for these studies, mostly to the institutions running them.
- A Study to Assess the Safety and Efficacy of Oral Armour Thyroid Compared to Synthetic T4 for the Treatment of Primary Hypothyroidism in Adult Participants
AbbVie Inc. · Active, not recruiting · NCT06345339 - A Phase 3, Randomized, Double-masked, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy, Safety, Tolerability, Durability, Pharmacodynamics, Pharmacokinetics, and Immunogenicity of Efgartigimod PH20 SC ad…
Argenx US, Inc. - A Study to Assess the Safety and Efficacy of Oral Armour Thyroid Compared to Synthetic T4 for the Treatment of Primary Hypothyroidism in Adult Participants
AbbVie Inc.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.