Doctor profile · Federal record
Dr. Sean Grammy, D.O.
Emergency Medicine Physician · Internal Medicine Physician · Antioch, CA
- NPI 1982832127
- MIPS 86.3 / 100 · 2023
- 17 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3901 Lone Tree Way
Antioch, CA 945096200
(925) 779-7200 - Mailing address
-
1000 Harness Dr, 59
San Ramon, CA 945832252
Credentials & registration
- NPI registered
- June 2009 — 17 yrs on file
- Profile last updated
- July 28, 2014
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #20A13122
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982832127. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
791
Distinct HCPCS
5
Medicare allowed
$127,201
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 404 | 396 | $188 | |
99284 |
Emergency department visit with moderate level of medical decision making | 144 | 142 | $130 | |
99291 |
Critical care, first 30-74 minutes | 134 | 131 | $234 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 98 | 93 | $9 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 11 | 11 | $13 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 118. This provider delivers 6.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
171
Patients
144
Total drug cost
$1,898
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 35 | 34 | $294 |
| Ondansetron Odt (Ondansetron) | Brand | 34 | 34 | $360 |
| Prednisone | Generic | 26 | 25 | $133 |
| Azithromycin | Generic | 25 | 25 | $113 |
| Cefpodoxime Proxetil | Generic | 13 | 13 | $735 |
| Lisinopril | Generic | 13 | 0 | $84 |
| Meclizine Hcl | Generic | 13 | 13 | $92 |
| Losartan Potassium | Generic | 12 | 0 | $87 |
Frequently asked questions
What is Dr. Sean Grammy's medical specialty?
Dr. Sean Grammy practices Emergency Medicine Physician in Antioch, CA.
Where does Dr. Sean Grammy practice?
Dr. Sean Grammy practices at 3901 Lone Tree Way, Antioch, CA 945096200. Office phone: 9257797200.
What is Dr. Sean Grammy's NPI?
Dr. Sean Grammy's National Provider Identifier (NPI) is 1982832127, issued by NPPES.
What procedures does Dr. Sean Grammy 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); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.