Gautham Viswanathan, M.D.
Nephrology Physician · Atlanta, GA
Gautham Viswanathan, M.D. is a nephrology physician with a practice address in Atlanta, Georgia, and NPI 1427194257, issued on Jan 29, 2007. Check the license (Georgia 71645, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gautham Viswanathan
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 71645 GA
01059360A IN
Self-reported in NPPES; status is on the state search - Practice location
- 35 Collier RD NW, Atlanta, GA 30309
- Phone
- (404) 355-7375
- Enumerated
- Jan 29, 2007
- Record last updated
- Oct 29, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (404) 350-9781
- Medicare enrollment
- Enrolled (PECOS I20141112002193); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 417 in Georgia → Look up another NPI →
Also registered at 35 Collier RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gautham Viswanathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 71645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average nephrology physician in 2024
3,576 Medicare Part D claims for 556 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Amlodipine Besylate272 claims
- Farxiga183 claims
- Jardiance164 claims
- Losartan Potassium164 claims
- Hydralazine Hcl138 claims
- Allopurinol136 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $503.38
26 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Piedmont Nephrology And Internal Medicine, LLCAtlanta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gautham Viswanathan among 417 nephrology physician records in Georgia
Gautham Viswanathan, M.D. is one of 417 nephrology physician records with a practice address in Georgia. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.
- NPI issued2007 · 53% of these records are older, 37% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated1998 · median 2001 among the 343 with a school on file
- Record last updated2014 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Georgia
There are 417 nephrology physician records in Georgia.
All 417 in Georgia → Every provider in Atlanta → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Dariush Bahrami, MDAtlanta, GA 303091659354850
- Waindel Belizaire, D.O.Atlanta, GA 303091235193632
- Jerry Cooper, MDAtlanta, GA 303091396728598
- Eric Gibney, MDAtlanta, GA 303091992899207
- Erica Hartmann, MDAtlanta, GA 303091154306587
- Edrea Jones, MDAtlanta, GA 303091427031210
- Michael Katz, MDAtlanta, GA 303091336215037
- Sundus Lodhi, M.D.Atlanta, GA 303091770682825
Common questions
What is Gautham Viswanathan, M.D.'s NPI number?
Gautham Viswanathan, M.D.'s National Provider Identifier (NPI) is 1427194257, issued on Jan 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gautham Viswanathan, M.D. located?
The NPPES record lists a practice address at 35 Collier RD NW, Atlanta, GA, 30309. Phone: (404) 355-7375. Providers update this record themselves, so call before visiting.
How can I verify Gautham Viswanathan, M.D.'s license?
NPPES lists Georgia license number 71645, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gautham Viswanathan, M.D. prescribe under Medicare Part D?
In 2024, Gautham Viswanathan, M.D. had 3,576 Medicare Part D claims for 556 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Gautham Viswanathan, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.