Registry data as of Aug 27, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 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
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). 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, MDColon & Rectal Surgery Physician1710137401
  3. Ly Duong, NPGerontology 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

53% 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 1,511 among the 8,473 providers of this specialty who prescribed in Part D.

  1. Arthur Galoustian2,306
  2. Specialty average1,511

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, mostly food and beverage; the largest payer was Nxstage Medical, Inc.. The 6,365 providers of this specialty with any payment received $3,068.36 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$3,068.36

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Nephrology Associates Medical Group IncRiverside, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Nephrology Physician providers in California

There are 1,165 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. Anas Abou-Ismail, MDPalm Springs, CA1598078784
  5. Sreedhar Adapa, M.D.Visalia, CA1881997872
  6. Gbemisola Adenuga, M.D.Los Angeles, CA1952464661
  7. Adegbenga Adetola, MDLynwood, CA1881776219
  8. Judy Adler, M.D.San Diego, CA1326043894
  9. Sharon Adler, M.D.Torrance, CA1467431122
  10. Maryam Afkarian, M.D., PH.D.Sacramento, CA1255387338

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 1,511. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.