Doctor profile · Federal record
Dr. Gregory Groetsema, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · San Jose, CA
- NPI 1790727873
- Accepts Medicare
- 20 yrs on file
- Male
- No sanctions
Practice & contact
- Primary practice
-
2105 Forest Ave
San Jose, CA 951281425
(408) 947-2500
fax (818) 587-2493 - Mailing address
-
Po Box 4419
Woodland Hills, CA 913654419
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A71705
- Medicaid
- CA #00A717050
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790727873. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
686
Distinct HCPCS
5
Medicare allowed
$90,056
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 302 | 284 | $189 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 180 | 168 | $9 | |
99284 |
Emergency department visit with moderate level of medical decision making | 144 | 139 | $131 | |
99291 |
Critical care, first 30-74 minutes | 49 | 49 | $236 | |
99283 |
Emergency department visit with low level of medical decision making | 11 | 11 | $78 |
In context: peer comparison
Among 31 peers in San Jose Emergency Medicine Physician, average services per provider: 115. This provider delivers 6.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
156
Patients
142
Total drug cost
$2,004
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 43 | 42 | $607 |
| Ibuprofen | Generic | 26 | 26 | $174 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 22 | 21 | $81 |
| Ondansetron Odt (Ondansetron) | Brand | 20 | 20 | $267 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 18 | 18 | $396 |
| Azithromycin | Generic | 15 | 15 | $108 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 12 | 0 | $371 |
Frequently asked questions
What is Dr. Gregory Groetsema's medical specialty?
Dr. Gregory Groetsema practices Emergency Medicine Physician in San Jose, CA.
Where does Dr. Gregory Groetsema practice?
Dr. Gregory Groetsema practices at 2105 Forest Ave, San Jose, CA 951281425. Office phone: 4089472500.
What is Dr. Gregory Groetsema's NPI?
Dr. Gregory Groetsema's National Provider Identifier (NPI) is 1790727873, issued by NPPES.
Does Dr. Gregory Groetsema accept Medicare assignment?
Yes. Dr. Gregory Groetsema accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Groetsema 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.