NPPES file of Aug 9, 2026

Arthur Galoustian, MD

Nephrology Physician · Riverside, CA

Arthur Galoustian, MD is a nephrology physician with a practice address in Riverside, California, and NPI 1487685426, issued on Jul 6, 2006. Check the license (California A95220, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487685426
Name
Arthur Galoustian
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A95220 CA
Self-reported in NPPES; status is on the state search
Practice location
3660 Park Sierra Dr, Riverside, CA 92505
Phone
(951) 687-2800
Enumerated
Jul 6, 2006
Record last updated
Jul 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(951) 687-7290
Medicaid ID
00A952200 CA
Medicare enrollment
Enrolled (PECOS I20070113000058); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3660 Park Sierra Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rizwan Badar, M.D.Nephrology Physician1073761243
  2. Eric Changchien, MDSurgery Physician1710137401
  3. Ly Duong, NPFamily Nurse Practitioner1497261614
  4. Monica Falcon, PA-CSurgical Physician Assistant1588750152
  5. Rahul Gohil, MDSurgery Physician1679754873
  6. Vanessa Ho, MDFamily Medicine Physician1679512776

Verify Arthur Galoustian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A95220
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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57% more Medicare Part D claims than the average nephrology physician in 2024

2,306 Medicare Part D claims for 301 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Arthur Galoustian2,306
  2. Specialty average1,465

Most prescribed

  1. Ozempic155 claims
  2. Furosemide122 claims
  3. Farxiga98 claims
  4. Amlodipine Besylate76 claims
  5. Nifedipine Er72 claims
  6. Atorvastatin Calcium70 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: $455.87

18 payments; by number, the most common kind was food and beverage; the largest payer was Nxstage Medical, 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.

  1. Arthur Galoustian$455.87
  2. Specialty average$3,091.37

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

  1. Nephrology Associates Medical Group IncRiverside, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nephrology Physician providers in California

There are 1,468 nephrology physician records in California.

Other nephrology physician records in California

  1. Antoine Abcar, MDLos Angeles, CA1245301159
  2. Basmah Abdalla, M.D.Los Angeles, CA1629394002
  3. Omaran Abdeen, M.D.Mission Hills, CA1700878410
  4. Joseph Abdelmalek, M.DSan Diego, CA1740485531
  5. Lama Abdelnour, MDLos Angeles, CA1477817542
  6. Amir Abdi Pour, MDLoma Linda, CA1912187477
  7. Anas Abou-Ismail, MDPalm Springs, CA1598078784
  8. Graham Abra, M.D.Stanford, CA1760644678
  9. Sreedhar Adapa, M.D.Visalia, CA1881997872
  10. Gbemisola Adenuga, M.D.Los Angeles, CA1952464661

Common questions

What is Arthur Galoustian, MD's NPI number?

Arthur Galoustian, MD's National Provider Identifier (NPI) is 1487685426, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Arthur Galoustian, MD located?

The NPPES record lists a practice address at 3660 Park Sierra Dr, Riverside, CA, 92505. Phone: (951) 687-2800. Providers update this record themselves, so call before visiting.

How can I verify Arthur Galoustian, MD's license?

NPPES lists California license number A95220, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Arthur Galoustian, MD prescribe under Medicare Part D?

In 2024, Arthur Galoustian, MD had 2,306 Medicare Part D claims for 301 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.