Doctor profile · Federal record
Dr. Avinash Viswanathan, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Springfield, IL
- NPI 1639487911
- Accepts Medicare
- MIPS 72.1 / 100 · 2023
- 16 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
3132 Old Jacksonville RD, Suite 150
Springfield, IL 627047400
(217) 862-0741
fax (217) 862-0858
Credentials & registration
- NPI registered
- September 2010 — 16 yrs on file
- Profile last updated
- May 23, 2014
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State licenses (2)
- Illinois #036.133495 · Illinois #336.094733
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639487911. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
965
Distinct HCPCS
6
Medicare allowed
$116,116
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 711 | 346 | $124 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 71 | 60 | $88 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 58 | 58 | $282 | |
G0009 |
Administration of pneumococcal vaccine | 58 | 58 | $30 | |
G0008 |
Administration of influenza virus vaccine | 34 | 34 | $30 | |
90662 |
Influenza vaccine split virus, preservative free | 33 | 33 | $72 |
In context: peer comparison
Among 34 peers in this city , average services per provider: 218. This provider delivers 4.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
4,830
Patients
1,243
Total drug cost
$246,973
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 716 | 188 | $10,589 |
| Amlodipine Besylate | Generic | 503 | 134 | $4,693 |
| Levothyroxine Sodium | Generic | 446 | 109 | $7,596 |
| Rosuvastatin Calcium | Generic | 380 | 108 | $7,923 |
| Lisinopril | Generic | 375 | 83 | $3,347 |
| Metoprolol Succinate | Generic | 368 | 91 | $7,591 |
| Omeprazole | Generic | 331 | 95 | $5,531 |
| Pantoprazole Sodium | Generic | 234 | 71 | $5,492 |
| Famotidine | Generic | 227 | 52 | $3,733 |
| Metformin Hcl | Generic | 222 | 59 | $2,736 |
Hospital affiliations
Frequently asked questions
What is Dr. Avinash Viswanathan's medical specialty?
Dr. Avinash Viswanathan practices Internal Medicine Physician in Springfield, IL.
Where does Dr. Avinash Viswanathan practice?
Dr. Avinash Viswanathan practices at 3132 Old Jacksonville RD, Springfield, IL 627047400. Office phone: 2178620741.
What is Dr. Avinash Viswanathan's NPI?
Dr. Avinash Viswanathan's National Provider Identifier (NPI) is 1639487911, issued by NPPES.
Does Dr. Avinash Viswanathan accept Medicare assignment?
Yes. Dr. Avinash Viswanathan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Avinash Viswanathan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use (HCPCS 90677). Source: CMS Medicare Physician & Other Practitioners file.