Arundathi Namassivaya, MD
Nephrology Physician · Amherst, NY
Arundathi Namassivaya, MD is a nephrology physician with a practice address in Amherst, New York, and NPI 1790807410, issued on Apr 4, 2007. Check the license (New York 217755, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Arundathi Namassivaya
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 217755 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1306 Sweet Home RD, Amherst, NY 14228
- Phone
- (716) 838-3188
- Enumerated
- Apr 4, 2007
- Record last updated
- Aug 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (716) 838-1297
- Medicaid ID
- 02098662 NY
- Medicare enrollment
- Enrolled (PECOS I20100913000337); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,049 in New York → Look up another NPI →
Also registered at 1306 Sweet Home RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Imad Ahmed, M.DNephrology Physician1912118431
- Maria Delcastillo, M.D.Nephrology Physician1467572537
- Teresa Fugate, FNPFamily Nurse Practitioner1588185243
- Michelle Grabiec, PA - CPhysician Assistant1508418732
- Alan Kuritzky, M.D.Nephrology Physician1316067499
- George Marinides, MDNephrology Physician1912029653
Verify Arundathi Namassivaya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 217755Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average nephrology physician in 2024
2,127 Medicare Part D claims for 361 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Calcitriol425 claims
- Sevelamer Carbonate99 claims
- Allopurinol98 claims
- Torsemide85 claims
- Jardiance79 claims
- Farxiga75 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.
Industry payments in 2024: $226.96
23 payments; by number, the most common kind was education; the largest payer was Travere Therapeutics, Inc. 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
- Nephrology Associates OF Western New York, LLPAmherst, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Arundathi Namassivaya among 1,049 nephrology physician records in New York
Arundathi Namassivaya, MD is one of 1,049 nephrology physician records with a practice address in New York. 85% 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, 39% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1998 · median 1999 among the 764 with a school on file
- Record last updated2015 · 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in New York
There are 1,049 nephrology physician records in New York.
All 1,049 in New York → Every provider in Amherst → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Imad Ahmed, M.DAmherst, NY 142281912118431
- Jyotsna BhatnagarAmherst, NY 142281629215272
- Maria Delcastillo, M.D.Amherst, NY 142281467572537
- Alan Kuritzky, M.D.Amherst, NY 142281316067499
- George Marinides, MDAmherst, NY 142281912029653
- Kristin Matteson, D.O.Amherst, NY 142281063532125
- James Ryan, MDAmherst, NY 142281467574194
- Richard Steinacher, D.O.Amherst, NY 142281629198700
Common questions
What is Arundathi Namassivaya, MD's NPI number?
Arundathi Namassivaya, MD's National Provider Identifier (NPI) is 1790807410, issued on Apr 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Arundathi Namassivaya, MD located?
The NPPES record lists a practice address at 1306 Sweet Home RD, Amherst, NY, 14228. Phone: (716) 838-3188. Providers update this record themselves, so call before visiting.
How can I verify Arundathi Namassivaya, MD's license?
NPPES lists New York license number 217755, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Arundathi Namassivaya, MD prescribe under Medicare Part D?
In 2024, Arundathi Namassivaya, MD had 2,127 Medicare Part D claims for 361 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
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.