Doctor profile · Federal record
Dr. Mark Penner, DO
Emergency Medicine Physician (CMS: Emergency Medicine) · San Jose, CA
- NPI 1689602500
- Accepts Medicare
- 32 yrs in practice
- Male
- Group practice
- 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
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #20A8037
- Medicaid
- CA #00AX80370
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689602500. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
604
Distinct HCPCS
5
Medicare allowed
$80,388
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 278 | 267 | $187 | |
99284 |
Emergency department visit with moderate level of medical decision making | 144 | 133 | $129 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 136 | 129 | $9 | |
99291 |
Critical care, first 30-74 minutes | 32 | 32 | $234 | |
99283 |
Emergency department visit with low level of medical decision making | 14 | 13 | $75 |
In context: peer comparison
Among 31 peers in this city , average services per provider: 115. This provider delivers 5.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
190
Patients
176
Total drug cost
$2,716
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 52 | 52 | $535 |
| Famotidine | Generic | 41 | 38 | $480 |
| Celecoxib | Generic | 25 | 25 | $1,335 |
| Ibuprofen | Generic | 18 | 18 | $63 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 16 | 16 | $43 |
| Prednisone | Generic | 16 | 16 | $58 |
| Metoclopramide Hcl | Generic | 11 | 11 | $50 |
| Potassium Chloride | Generic | 11 | 0 | $153 |
Frequently asked questions
What is Dr. Mark Penner's medical specialty?
Dr. Mark Penner practices Emergency Medicine Physician in San Jose, CA.
Where does Dr. Mark Penner practice?
Dr. Mark Penner practices at 2105 Forest Ave, San Jose, CA 951281425. Office phone: 4089472500.
What is Dr. Mark Penner's NPI?
Dr. Mark Penner's National Provider Identifier (NPI) is 1689602500, issued by NPPES.
Does Dr. Mark Penner accept Medicare assignment?
Yes. Dr. Mark Penner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Penner 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); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.