Doctor profile · Federal record
Dr. Mark Larson, M.D.
Hospice and Palliative Medicine (Emergency Medicine) Physician (CMS: Emergency Medicine) · Centralia, WA
- NPI 1497973416
- Accepts Medicare
- 39 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
914 S Scheuber RD
Centralia, WA 985319027
(360) 330-8785
fax (360) 330-8784 - Mailing address
-
6229 Swayne Drive Ne
Olympia, WA 98516
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207PH0002X — NUCC code
- State license (1)
- Washington #MD00031468
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497973416. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
593
Distinct HCPCS
7
Medicare allowed
$56,857
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 188 | 171 | $8 | |
99285 |
Emergency department visit with high level of medical decision making | 137 | 134 | $171 | |
99284 |
Emergency department visit with moderate level of medical decision making | 71 | 68 | $118 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 56 | 55 | $171 | |
93042 |
Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 55 | 55 | $7 | |
99291 |
Critical care, first 30-74 minutes | 55 | 55 | $209 | |
99283 |
Emergency department visit with low level of medical decision making | 31 | 30 | $69 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 84. This provider delivers 7.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
72
Patients
70
Total drug cost
$819
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 35 | 35 | $570 |
| Ondansetron Odt (Ondansetron) | Brand | 13 | 12 | $145 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 13 | 12 | $50 |
| Prednisone | Generic | 11 | 11 | $54 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Larson's medical specialty?
Dr. Mark Larson practices Hospice and Palliative Medicine (Emergency Medicine) Physician in Centralia, WA.
Where does Dr. Mark Larson practice?
Dr. Mark Larson practices at 914 S Scheuber RD, Centralia, WA 985319027. Office phone: 3603308785.
What is Dr. Mark Larson's NPI?
Dr. Mark Larson's National Provider Identifier (NPI) is 1497973416, issued by NPPES.
Does Dr. Mark Larson accept Medicare assignment?
Yes. Dr. Mark Larson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Larson commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.