Doctor profile · Federal record
Dr. Ewan Johnson, MD, PHD
Internal Medicine Physician (CMS: Internal Medicine) · Emergency Medicine Physician · Medical Oncology Physician · Tomball, TX
- NPI 1043521313
- Accepts Medicare
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
13414 Medical Complex Dr Ste 6
Tomball, TX 773753333
(281) 415-6687 - Additional location
-
9359 Hwy 37 Suite D
Corpus Christi, TX 784097840
(800) 951-0182
fax (832) 565-1921
Credentials & registration
- NPI registered
- July 2010 — 16 yrs on file
- Profile last updated
- June 11, 2021
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Texas #N8018
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043521313. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
12
Distinct HCPCS
1
Medicare allowed
$1,451
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 12 | 12 | $121 |
In context: peer comparison
Among 8 peers in Tomball Internal Medicine Physician, average services per provider: 280. This provider delivers 0.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
319
Patients
225
Total drug cost
$4,835
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 35 | 19 | $640 |
| Meloxicam | Generic | 33 | 28 | $333 |
| Losartan Potassium | Generic | 29 | 14 | $536 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 25 | 25 | $461 |
| Ciprofloxacin Hcl | Generic | 25 | 25 | $303 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 23 | 23 | $511 |
| Pantoprazole Sodium | Generic | 20 | 13 | $439 |
| Prednisone | Generic | 20 | 16 | $87 |
| Metronidazole | Generic | 19 | 19 | $189 |
| Atorvastatin Calcium | Generic | 18 | 0 | $197 |
Frequently asked questions
What is Dr. Ewan Johnson's medical specialty?
Dr. Ewan Johnson practices Internal Medicine Physician in Tomball, TX.
Where does Dr. Ewan Johnson practice?
Dr. Ewan Johnson practices at 13414 Medical Complex Dr Ste 6, Tomball, TX 773753333. Office phone: 2814156687.
What is Dr. Ewan Johnson's NPI?
Dr. Ewan Johnson's National Provider Identifier (NPI) is 1043521313, issued by NPPES.
Does Dr. Ewan Johnson accept Medicare assignment?
Yes. Dr. Ewan Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ewan Johnson commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.