Doctor profile · Federal record
Dr. Ragu Sivarajan, D.O,.
Internal Medicine Physician (CMS: Internal Medicine) · Fontana, CA
- NPI 1902246523
- Accepts Medicare
- MIPS 36.9 / 100 · 2023
- 13 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
16465 Sierra Lakes Pkwy Ste 245
Fontana, CA 923361267
(909) 330-3939 - Additional location
-
330 E 7Th St Fl 2
Upland, CA 917866740 - Mailing address
-
Po Box 3282
Rancho Cucamonga, CA 917293282
Credentials & registration
- NPI registered
- June 2013 — 13 yrs on file
- Profile last updated
- April 16, 2025
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #20A14906
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902246523. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
66
Distinct HCPCS
2
Medicare allowed
$5,685
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 55 | 15 | $76 | |
99305 |
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 11 | 11 | $136 |
In context: peer comparison
Among 18 peers in Fontana Internal Medicine Physician, average services per provider: 61. This provider delivers 1.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
113
Patients
0
Total drug cost
$2,677
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 34 | 0 | $316 |
| Amlodipine Besylate | Generic | 20 | 0 | $100 |
| Pantoprazole Sodium | Generic | 19 | 0 | $2,103 |
| Furosemide | Generic | 15 | 0 | $59 |
| Warfarin Sodium | Generic | 13 | 0 | $9 |
| Famotidine | Generic | 12 | 0 | $88 |
Hospital affiliations
Frequently asked questions
What is Dr. Ragu Sivarajan's medical specialty?
Dr. Ragu Sivarajan practices Internal Medicine Physician in Fontana, CA.
Where does Dr. Ragu Sivarajan practice?
Dr. Ragu Sivarajan practices at 16465 Sierra Lakes Pkwy Ste 245, Fontana, CA 923361267. Office phone: 9093303939.
What is Dr. Ragu Sivarajan's NPI?
Dr. Ragu Sivarajan's National Provider Identifier (NPI) is 1902246523, issued by NPPES.
Does Dr. Ragu Sivarajan accept Medicare assignment?
Yes. Dr. Ragu Sivarajan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ragu Sivarajan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Initial nursing facility care with moderate level of medical decision making (HCPCS 99305). Source: CMS Medicare Physician & Other Practitioners file.