Doctor profile · Federal record
Dr. Gautham Viswanathan, M.D.
Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Atlanta, GA
- NPI 1427194257
- Accepts Medicare
- MIPS 99.2 / 100 · 2023
- 28 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
35 Collier RD Nw, Ste 610
Atlanta, GA 303091613
(404) 355-7375
fax (404) 350-9781
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- October 29, 2014
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State licenses (2)
- Georgia #71645 · Indiana #01059360A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427194257. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,083
Distinct HCPCS
9
Medicare allowed
$160,951
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
81003 |
Automated urinalysis test | 558 | 298 | $2 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 529 | 268 | $125 | |
90970 |
Dialysis services, per day, less than full month service (20 years or older) | 489 | 31 | $9 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 150 | 131 | $89 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 142 | 26 | $347 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 78 | 50 | $78 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 68 | 68 | $163 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 52 | 44 | $117 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 17 | 17 | $171 |
In context: peer comparison
Among 31 peers in Atlanta Nephrology Physician, average services per provider: 99. This provider delivers 21× the peer median.Open Payments
Industry payments received
All-time total
$503
Transactions
26
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 5 | $103.97 | |
| Travere Therapeutics, INC. | 7 | $92.61 | |
| Amgen INC. | 4 | $70.10 | |
| Akebia Therapeutics INC | 2 | $52.59 | |
| Novo Nordisk INC | 2 | $41.63 | |
| Fresenius USA Marketing, INC. | 2 | $37.99 | |
| CorMedix INC. | 1 | $32.12 | |
| Aurinia Pharma U.S., INC. | 1 | $28.87 | |
| Otsuka America Pharmaceutical, INC. | 1 | $27.52 | |
| GlaxoSmithKline, LLC. | 1 | $15.98 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,803
Patients
620
Total drug cost
$242,056
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 301 | 106 | $2,210 |
| Losartan Potassium | Generic | 203 | 71 | $2,416 |
| Hydralazine Hcl | Generic | 155 | 51 | $2,845 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 139 | 36 | $144,999 |
| Furosemide | Generic | 127 | 48 | $742 |
| Spironolactone | Generic | 121 | 37 | $1,917 |
| Allopurinol | Generic | 118 | 41 | $1,465 |
| Torsemide | Generic | 96 | 36 | $2,532 |
| Potassium Chloride | Generic | 90 | 33 | $3,122 |
| Lisinopril | Generic | 88 | 31 | $802 |
Hospital affiliations
Frequently asked questions
What is Dr. Gautham Viswanathan's medical specialty?
Dr. Gautham Viswanathan practices Nephrology Physician in Atlanta, GA.
Where does Dr. Gautham Viswanathan practice?
Dr. Gautham Viswanathan practices at 35 Collier RD Nw, Atlanta, GA 303091613. Office phone: 4043557375.
What is Dr. Gautham Viswanathan's NPI?
Dr. Gautham Viswanathan's National Provider Identifier (NPI) is 1427194257, issued by NPPES.
Does Dr. Gautham Viswanathan accept Medicare assignment?
Yes. Dr. Gautham Viswanathan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gautham Viswanathan commonly perform?
Top Medicare-reported procedures in 2023: Automated urinalysis test (HCPCS 81003); Established patient office or other outpatient visit (HCPCS 99214); Dialysis services (HCPCS 90970). Source: CMS Medicare Physician & Other Practitioners file.