Doctor profile · Federal record
Dr. Gary Underhill, MD
Family Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Emergency Medicine Physician · Dayton, WA
- NPI 1851375265
- Accepts Medicare
- MIPS 87.7 / 100 · 2023
- 30 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1012 S 3Rd St
Dayton, WA 99328
(509) 382-2531
fax (509) 382-3205
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- March 3, 2025
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- Washington #MD00037711 · Washington #MD0037711
- Medicaid
- WA #1020580
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851375265. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
386
Distinct HCPCS
6
Medicare allowed
$42,526
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 139 | 134 | $175 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 121 | 115 | $8 | |
99284 |
Emergency department visit with moderate level of medical decision making | 64 | 63 | $120 | |
99291 |
Critical care, first 30-74 minutes | 30 | 29 | $213 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 20 | 14 | $79 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 12 | 11 | $130 |
In context: peer comparison
Among 3 peers in Dayton Family Medicine Physician, average services per provider: 64. This provider delivers 6.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
54
Patients
41
Total drug cost
$332
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 27 | 25 | $94 |
| Cephalexin | Generic | 16 | 16 | $167 |
| Azithromycin | Generic | 11 | 0 | $72 |
Hospital affiliations
Frequently asked questions
What is Dr. Gary Underhill's medical specialty?
Dr. Gary Underhill practices Family Medicine Physician in Dayton, WA.
Where does Dr. Gary Underhill practice?
Dr. Gary Underhill practices at 1012 S 3Rd St, Dayton, WA 99328. Office phone: 5093822531.
What is Dr. Gary Underhill's NPI?
Dr. Gary Underhill's National Provider Identifier (NPI) is 1851375265, issued by NPPES.
Does Dr. Gary Underhill accept Medicare assignment?
Yes. Dr. Gary Underhill accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gary Underhill commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.