Doctor profile · Federal record
Dr. Michael Johnston, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Dallas, TX
- NPI 1144232265
- Accepts Medicare
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3417 Gaston Ave, Suite 1000
Dallas, TX 752462016
(469) 800-9000
fax (469) 800-9010
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- April 13, 2017
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Texas #K0498
- Medicaid
- TX #046192301
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144232265. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,929
Distinct HCPCS
10
Medicare allowed
$244,956
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 2,460 | 23 | $23 | |
36415 |
Insertion of needle into vein for collection of blood sample | 633 | 430 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 521 | 302 | $125 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 442 | 392 | $89 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 353 | 353 | $127 | |
G0008 |
Administration of influenza virus vaccine | 104 | 104 | $25 | |
90662 |
Influenza vaccine split virus, preservative free | 77 | 77 | $72 | |
96372 |
Injection of drug or substance under skin or into muscle | 47 | 26 | $14 | |
71046 |
X-ray of chest, 2 views | 33 | 30 | $33 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 32 | 32 | $281 |
In context: peer comparison
Among 289 peers in this city , average services per provider: 185. This provider delivers 27× the peer median.Open Payments
Industry payments received
All-time total
$60
Transactions
4
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk Inc | 4 | $60.02 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,613
Patients
1,268
Total drug cost
$65,818
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 680 | 190 | $8,627 |
| Rosuvastatin Calcium | Generic | 565 | 155 | $10,038 |
| Amlodipine Besylate | Generic | 488 | 136 | $5,013 |
| Lisinopril | Generic | 351 | 94 | $3,407 |
| Simvastatin | Generic | 294 | 81 | $2,563 |
| Levothyroxine Sodium | Generic | 275 | 76 | $4,143 |
| Losartan Potassium | Generic | 240 | 66 | $2,869 |
| Pantoprazole Sodium | Generic | 240 | 76 | $4,906 |
| Lisinopril-Hydrochlorothiazide (Lisinopril/Hydrochlorothiazide) | Brand | 238 | 67 | $2,835 |
| Escitalopram Oxalate | Generic | 235 | 60 | $3,391 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Johnston's medical specialty?
Dr. Michael Johnston practices Internal Medicine Physician in Dallas, TX.
Where does Dr. Michael Johnston practice?
Dr. Michael Johnston practices at 3417 Gaston Ave, Dallas, TX 752462016. Office phone: 4698009000.
What is Dr. Michael Johnston's NPI?
Dr. Michael Johnston's National Provider Identifier (NPI) is 1144232265, issued by NPPES.
Does Dr. Michael Johnston accept Medicare assignment?
Yes. Dr. Michael Johnston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Johnston commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.