Doctor profile · Federal record
Dr. Oleg Nisenberg, MD, PHD
Internal Medicine Physician (CMS: Hospitalist) · Loma Linda, CA
- NPI 1255541058
- Accepts Medicare
- 21 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
11234 Anderson St, Llumc House Staff Office Cp 21005
Loma Linda, CA 923542804
(909) 558-4000
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- December 6, 2021
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A99081
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255541058. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
22
Distinct HCPCS
2
Medicare allowed
$2,531
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $127 | |
99234 |
Initial hospital care with same-day admission and discharge with straightforward or low level of medical decision making, per day, if using time, at least 45 minutes | 11 | 11 | $103 |
In context: peer comparison
Among 44 peers in Loma Linda Internal Medicine Physician, average services per provider: 98. This provider delivers 0.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
342
Patients
211
Total drug cost
$5,403
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 50 | 27 | $824 |
| Cefpodoxime Proxetil | Generic | 44 | 44 | $1,529 |
| Furosemide | Generic | 35 | 20 | $442 |
| Amlodipine Besylate | Generic | 30 | 16 | $345 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 24 | 14 | $449 |
| Pantoprazole Sodium | Generic | 24 | 17 | $399 |
| Rosuvastatin Calcium | Generic | 18 | 0 | $243 |
| Ciprofloxacin Hcl | Generic | 17 | 16 | $144 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 17 | 17 | $161 |
| Mirtazapine | Generic | 16 | 0 | $240 |
Hospital affiliations
Frequently asked questions
What is Dr. Oleg Nisenberg's medical specialty?
Dr. Oleg Nisenberg practices Internal Medicine Physician in Loma Linda, CA.
Where does Dr. Oleg Nisenberg practice?
Dr. Oleg Nisenberg practices at 11234 Anderson St, Loma Linda, CA 923542804. Office phone: 9095584000.
What is Dr. Oleg Nisenberg's NPI?
Dr. Oleg Nisenberg's National Provider Identifier (NPI) is 1255541058, issued by NPPES.
Does Dr. Oleg Nisenberg accept Medicare assignment?
Yes. Dr. Oleg Nisenberg accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Oleg Nisenberg commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with same-day admission and discharge with straightforward or low level of medical decision making (HCPCS 99234). Source: CMS Medicare Physician & Other Practitioners file.