Doctor profile · Federal record
Dr. Nathaniel Grubbs, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Sedona, AZ
- NPI 1598108110
- Accepts Medicare
- MIPS 77.0 / 100 · 2023
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
3700 W State Route 89A
Sedona, AZ 86336
(928) 204-4100
fax (928) 204-4115 - Additional location
-
1 Medical Center Dr, Dhmc, Department of Emergency Medicine
Lebanon, NH 037561000
(603) 650-5000 - Mailing address
-
1200 N Beaver St
Flagstaff, AZ 860013118
Credentials & registration
- NPI registered
- April 2013 — 13 yrs on file
- Profile last updated
- August 9, 2019
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Arizona #54828
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598108110. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
223
Distinct HCPCS
5
Medicare allowed
$30,323
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 108 | 106 | $171 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 41 | 35 | $8 | |
99284 |
Emergency department visit with moderate level of medical decision making | 37 | 36 | $118 | |
99291 |
Critical care, first 30-74 minutes | 26 | 26 | $206 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $168 |
In context: peer comparison
Among 4 peers in Sedona Emergency Medicine Physician, average services per provider: 68. This provider delivers 3.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
13
Patients
13
Total drug cost
$129
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 13 | 13 | $129 |
Hospital affiliations
Frequently asked questions
What is Dr. Nathaniel Grubbs's medical specialty?
Dr. Nathaniel Grubbs practices Emergency Medicine Physician in Sedona, AZ.
Where does Dr. Nathaniel Grubbs practice?
Dr. Nathaniel Grubbs practices at 3700 W State Route 89A, Sedona, AZ 86336. Office phone: 9282044100.
What is Dr. Nathaniel Grubbs's NPI?
Dr. Nathaniel Grubbs's National Provider Identifier (NPI) is 1598108110, issued by NPPES.
Does Dr. Nathaniel Grubbs accept Medicare assignment?
Yes. Dr. Nathaniel Grubbs accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathaniel Grubbs 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.