Doctor profile · Federal record
Dr. Malcolm Johnson, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medical Services (Emergency Medicine) Physician · Walnut Creek, CA
- NPI 1003830316
- Accepts Medicare
- MIPS 86.3 / 100 · 2023
- 26 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1601 Ygnacio Valley RD
Walnut Creek, CA 945983122
(925) 939-3000 - Additional location
-
1321 Colby Ave
Everett, WA 982011665
(425) 261-2000 - Mailing address
-
1200 Gough Apt 17C
San Francisco, CA 94109
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 21, 2019
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- California #A94962 · Washington #MD00046336
- Medicaid
- CA #00A949620
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003830316. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
600
Distinct HCPCS
9
Medicare allowed
$72,373
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 191 | 191 | $188 | |
99284 |
Emergency department visit with moderate level of medical decision making | 93 | 92 | $130 | |
11045 |
Removal of skin and tissue, each additional 20.0 sq cm or less | 76 | 13 | $27 | |
11042 |
Removal of skin and tissue, 20.0 sq cm or less | 73 | 52 | $68 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 42 | 34 | $109 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 39 | 30 | $74 | |
99291 |
Critical care, first 30-74 minutes | 39 | 38 | $234 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 36 | 33 | $9 | |
97597 |
Removal of tissue from wound, 20.0 sq cm or less | 11 | 11 | $39 |
In context: peer comparison
Among 26 peers in this city , average services per provider: 87. This provider delivers 6.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
29
Patients
18
Total drug cost
$171
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 18 | 18 | $134 |
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 11 | 0 | $37 |
Hospital affiliations
Frequently asked questions
What is Dr. Malcolm Johnson's medical specialty?
Dr. Malcolm Johnson practices Emergency Medicine Physician in Walnut Creek, CA.
Where does Dr. Malcolm Johnson practice?
Dr. Malcolm Johnson practices at 1601 Ygnacio Valley RD, Walnut Creek, CA 945983122. Office phone: 9259393000.
What is Dr. Malcolm Johnson's NPI?
Dr. Malcolm Johnson's National Provider Identifier (NPI) is 1003830316, issued by NPPES.
Does Dr. Malcolm Johnson accept Medicare assignment?
Yes. Dr. Malcolm Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Malcolm Johnson commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Removal of skin and tissue, each additional 20.0 sq cm or less (HCPCS 11045). Source: CMS Medicare Physician & Other Practitioners file.