Arundathi Namassivaya, MD
NPI 1790807410 · Nephrology Physician · Amherst, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arundathi Namassivaya, MD is a Nephrology Physician provider in Amherst, NY (NPI 1790807410).
Provider details
- NPI number
- 1790807410
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 217755 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,231 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 215 | $16 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 175 | $355 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 127 | $49 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 124 | $79 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 111 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 425 | 130 |
| Sevelamer Carbonate | 99 | 36 |
| Allopurinol | 98 | 33 |
| Torsemide | 85 | 24 |
| Empagliflozinbrand: Jardiance | 79 | 21 |
| Dapagliflozin Propanediolbrand: Farxiga | 75 | 18 |
| Irbesartan | 74 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$227 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-04
- Last updated
- 2015-08-19
Frequently asked questions
- What is Arundathi Namassivaya's NPI number?
- Arundathi Namassivaya's National Provider Identifier (NPI) is 1790807410, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arundathi Namassivaya's specialty?
- Arundathi Namassivaya is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Arundathi Namassivaya located?
- Arundathi Namassivaya's practice location on file with NPPES is 1306 Sweet Home Rd, Amherst, NY 14228-2792.
- What is Arundathi Namassivaya's phone number?
- The practice phone number listed in the NPPES registry for Arundathi Namassivaya is (716) 838-3188.
- Does Arundathi Namassivaya accept Medicare?
- Arundathi Namassivaya is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arundathi Namassivaya's NPI active?
- Yes — Arundathi Namassivaya's NPI (1790807410) is active in the NPPES registry as of the last update on 2015-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.