Doctor profile · Federal record
Dr. Mark Greenbaum, MD
Emergency Medicine Physician (CMS: Family Practice) · Santa Cruz, CA
- NPI 1609882331
- 45 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2025 Soquel Ave
Santa Cruz, CA 950621323
(831) 458-5537 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- May 24, 2021
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #G48834
- Medicaid
- CA #00G488340
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609882331. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
369
Distinct HCPCS
4
Medicare allowed
$35,526
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 251 | 245 | $100 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 72 | 71 | $141 | |
81003 |
Automated urinalysis test | 32 | 32 | $2 | |
87880 |
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) | 14 | 14 | $16 |
In context: peer comparison
Among 11 peers in Santa Cruz Emergency Medicine Physician, average services per provider: 117. This provider delivers 3.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
169
Patients
162
Total drug cost
$1,762
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 30 | 29 | $271 |
| Prednisone | Generic | 29 | 28 | $114 |
| Mupirocin | Generic | 25 | 21 | $276 |
| Cefdinir | Generic | 22 | 21 | $689 |
| Meloxicam | Generic | 22 | 22 | $144 |
| Hydrocortisone | Generic | 15 | 15 | $106 |
| Paxlovid (Eua) (Nirmatrelvir/Ritonavir) | Brand | 14 | 14 | $123 |
| Tramadol Hcl | Generic | 12 | 12 | $40 |
Frequently asked questions
What is Dr. Mark Greenbaum's medical specialty?
Dr. Mark Greenbaum practices Emergency Medicine Physician in Santa Cruz, CA.
Where does Dr. Mark Greenbaum practice?
Dr. Mark Greenbaum practices at 2025 Soquel Ave, Santa Cruz, CA 950621323. Office phone: 8314585537.
What is Dr. Mark Greenbaum's NPI?
Dr. Mark Greenbaum's National Provider Identifier (NPI) is 1609882331, issued by NPPES.
Does Dr. Mark Greenbaum accept Medicare assignment?
Dr. Mark Greenbaum does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Mark Greenbaum commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Automated urinalysis test (HCPCS 81003). Source: CMS Medicare Physician & Other Practitioners file.