Doctor profile · Federal record
Dr. Nikolas Greenson, M.D.
Emergency Medicine Physician (CMS: Emergency Medicine) · Salinas, CA
- NPI 1811997737
- Accepts Medicare
- MIPS 76.1 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
450 E Romie Ln
Salinas, CA 939014029
(831) 759-1840 - Mailing address
-
Po Box 2420
Salinas, CA 939022420
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- February 23, 2011
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A79764
- Medicaid
- AZ #851586
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811997737. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
804
Distinct HCPCS
4
Medicare allowed
$140,668
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 564 | 530 | $178 | |
99291 |
Critical care, first 30-74 minutes | 120 | 118 | $219 | |
99284 |
Emergency department visit with moderate level of medical decision making | 107 | 104 | $123 | |
99283 |
Emergency department visit with low level of medical decision making | 13 | 13 | $73 |
In context: peer comparison
Among 18 peers in Salinas Emergency Medicine Physician, average services per provider: 92. This provider delivers 8.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
301
Patients
294
Total drug cost
$2,628
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 77 | 77 | $454 |
| Cephalexin | Generic | 70 | 69 | $788 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 37 | 36 | $201 |
| Ibuprofen | Generic | 37 | 36 | $85 |
| Famotidine | Generic | 27 | 26 | $290 |
| Lorazepam | Generic | 21 | 19 | $60 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 18 | 17 | $727 |
| Prednisone | Generic | 14 | 14 | $24 |
Frequently asked questions
What is Dr. Nikolas Greenson's medical specialty?
Dr. Nikolas Greenson practices Emergency Medicine Physician in Salinas, CA.
Where does Dr. Nikolas Greenson practice?
Dr. Nikolas Greenson practices at 450 E Romie Ln, Salinas, CA 939014029. Office phone: 8317591840.
What is Dr. Nikolas Greenson's NPI?
Dr. Nikolas Greenson's National Provider Identifier (NPI) is 1811997737, issued by NPPES.
Does Dr. Nikolas Greenson accept Medicare assignment?
Yes. Dr. Nikolas Greenson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nikolas Greenson commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.