Doctor profile · Federal record
Dr. Marian Johnston, M.D.
Pain Medicine (Anesthesiology) Physician (CMS: Anesthesiology) · Mount Vernon, WA
- NPI 1437107059
- Accepts Medicare
- 32 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
125 N 18Th St, Suite # B
Mount Vernon, WA 982733902
(360) 336-0123
fax (360) 336-0126
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- April 13, 2011
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207LP2900X — NUCC code
- State license (1)
- Washington #MD00035789
- Medicaid
- WA #8247710
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1437107059. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
296
Distinct HCPCS
3
Medicare allowed
$34,286
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 213 | 32 | $125 | |
80305 |
Testing for presence of drug, read by direct observation | 43 | 24 | $12 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 40 | 23 | $178 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 75. This provider delivers 3.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
421
Patients
28
Total drug cost
$24,266
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 143 | 15 | $11,720 |
| Morphine Sulfate Er (Morphine Sulfate) | Brand | 76 | 0 | $2,488 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 72 | 0 | $2,294 |
| Gabapentin | Generic | 41 | 13 | $1,196 |
| Tizanidine Hcl | Generic | 29 | 0 | $593 |
| Baclofen | Generic | 13 | 0 | $175 |
| Xtampza Er (Oxycodone Myristate) | Brand | 13 | 0 | $4,822 |
| Methadone Hcl | Generic | 12 | 0 | $184 |
| Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) | Brand | 11 | 0 | $563 |
| Oxycodone Hcl | Generic | 11 | 0 | $232 |
Frequently asked questions
What is Dr. Marian Johnston's medical specialty?
Dr. Marian Johnston practices Pain Medicine (Anesthesiology) Physician in Mount Vernon, WA.
Where does Dr. Marian Johnston practice?
Dr. Marian Johnston practices at 125 N 18Th St, Mount Vernon, WA 982733902. Office phone: 3603360123.
What is Dr. Marian Johnston's NPI?
Dr. Marian Johnston's National Provider Identifier (NPI) is 1437107059, issued by NPPES.
Does Dr. Marian Johnston accept Medicare assignment?
Yes. Dr. Marian Johnston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marian Johnston commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Testing for presence of drug, read by direct observation (HCPCS 80305); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.