Doctor profile · Federal record
Dr. Neil Markus, DO
Emergency Medicine Physician (CMS: Emergency Medicine) · Vallejo, CA
- NPI 1124106950
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
975 Sereno Dr
Vallejo, CA 945892441
(707) 651-1000 - Mailing address
-
1800 Harrison St Fl 7
Oakland, CA 946123466
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- December 20, 2021
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #20A8151
- Medicaid
- CA #00AX81510
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124106950. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
51
Distinct HCPCS
2
Medicare allowed
$8,160
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 32 | 32 | $181 | |
99284 |
Emergency department visit with moderate level of medical decision making | 19 | 19 | $125 |
In context: peer comparison
Among 17 peers in Vallejo Emergency Medicine Physician, average services per provider: 98. This provider delivers 0.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
126
Patients
126
Total drug cost
$1,502
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Meclizine Hcl | Generic | 26 | 26 | $521 |
| Cephalexin | Generic | 19 | 19 | $186 |
| Ciprofloxacin Hcl | Generic | 19 | 19 | $172 |
| Ondansetron Odt (Ondansetron) | Brand | 18 | 18 | $126 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 11 | 11 | $240 |
| Furosemide | Generic | 11 | 11 | $81 |
| Potassium Chloride | Generic | 11 | 11 | $106 |
| Prednisone | Generic | 11 | 11 | $70 |
Hospital affiliations
Frequently asked questions
What is Dr. Neil Markus's medical specialty?
Dr. Neil Markus practices Emergency Medicine Physician in Vallejo, CA.
Where does Dr. Neil Markus practice?
Dr. Neil Markus practices at 975 Sereno Dr, Vallejo, CA 945892441. Office phone: 7076511000.
What is Dr. Neil Markus's NPI?
Dr. Neil Markus's National Provider Identifier (NPI) is 1124106950, issued by NPPES.
Does Dr. Neil Markus accept Medicare assignment?
Yes. Dr. Neil Markus accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Neil Markus 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). Source: CMS Medicare Physician & Other Practitioners file.