NPPES file of Aug 9, 2026

Irene S. Chliwner, MD

Internal Medicine Physician · Warwick, RI

Irene S. Chliwner, MD is an internal medicine physician with a practice address in Warwick, Rhode Island, and NPI 1588745491, issued on Oct 18, 2006. Check the license (Rhode Island MD06838, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; 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
1588745491
Name
Irene S. Chliwner
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD06838 RI
Self-reported in NPPES; status is on the state search
Practice location
400 Bald Hill RD, Warwick, RI 02886
Phone
(401) 793-8520
Enumerated
Oct 18, 2006
Record last updated
Oct 19, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(401) 793-8527
Medicare enrollment
Enrolled (PECOS I20120719000540); accepts Medicare assignment
Medical or professional school
State University Of New York At Stony Brook, School Of Medicine, 1984
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 400 Bald Hill RD

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

  1. Scott Bessette, LMHCMental Health Counselor1417108523
  2. Joseph BlanchardHearing Instrument Specialist1548646045
  3. Tara Bogs, PH.D.Clinical Psychologist1043385081
  4. Kalina Brabeck, PH.D.Counseling Psychologist1417109232
  5. Amber Champagne, PSYDClinical Psychologist1073245940
  6. Nayda Cruz, FNPRegistered Nurse1861382707

Verify Irene S. Chliwner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
    Search for license MD06838
    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 Rhode Island license search

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38% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,957 Medicare Part D claims for 173 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Irene Chliwner1,957
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium217 claims
  2. Levothyroxine Sodium157 claims
  3. Amlodipine Besylate104 claims
  4. Lisinopril100 claims
  5. Losartan Potassium92 claims
  6. Famotidine87 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.

120 internal medicine physician records list a practice address in Warwick

They are 120 of the 2,776 NPPES records with a practice address in Warwick, and 1,033 internal medicine physician records in Rhode Island.

Other internal medicine physician records in Rhode Island

  1. Zainab AbbasiProvidence, RI1154990125
  2. Salvatore Abbruzzese, D.O. PCWakefield, RI1396774089
  3. Azamat Abdyraimov, MDProvidence, RI1184303216
  4. Marie Abejuela, MDProvidence, RI1326229501
  5. Reshma Abraham, MDWarwick, RI1972943413
  6. Alaa Abu Ajamieh, MDProvidence, RI1952283830
  7. Ahmad Abu Dayyeh, MDWarwick, RI1265322275
  8. Yusra Abu ShreikhProvidence, RI1255169991
  9. Yasin Abul, M.DRiverside, RI1235517889
  10. Lana Abusubaih, MDProvidence, RI1831967876

Common questions

What is Irene S. Chliwner, MD's NPI number?

Irene S. Chliwner, MD's National Provider Identifier (NPI) is 1588745491, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Irene S. Chliwner, MD located?

The NPPES record lists a practice address at 400 Bald Hill RD, Warwick, RI, 02886. Phone: (401) 793-8520. Providers update this record themselves, so call before visiting.

How can I verify Irene S. Chliwner, MD's license?

NPPES lists Rhode Island license number MD06838, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Irene S. Chliwner, MD prescribe under Medicare Part D?

In 2024, Irene S. Chliwner, MD had 1,957 Medicare Part D claims for 173 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.