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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ARUN SUNIL CHANDNANI MD
NPI 1558046375
Hospitalist in Saint Louis, MO

Active since June 19, 2023PECOS Enrolled
1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST, SAINT LOUIS, MO 63110(314) 362-1700(314) 362-9878 Get Directions Write a Review

NPPES record last updated: July 6, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jul 6, 2026, Jun 19, 2023 (2 updates tracked since 2023).

About Dr. Arun Sunil Chandnani Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ARUN SUNIL CHANDNANI MD (NPI 1558046375) is an individual hospitalist provider in Saint Louis, Missouri, licensed in Missouri (2026021277) and active in the NPI registry since June 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1558046375
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameDR. ARUN SUNIL CHANDNANICredential: MD
Location Address1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALISTSaint Louis, MO 63110-1003
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-1700 · Fax (314) 362-9878
Phone(314) 362-1700
Fax(314) 362-9878
Sole ProprietorNo
Enumeration DateJune 19, 2023
Last NPPES UpdateJuly 6, 20262 updates tracked since enumeration
NPPES CertifiedJune 19, 2023
✔ NPI 1558046375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in MO · 2026021277
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License 2026021277 (MO)
1 BARNES JEWISH HOSPITAL PLZ, Saint Louis, MO 63110
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Arun Sunil Chandnani Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Patient Reviews User submitted

Reviews are submitted by site visitors and approved by a human moderator before publication.

Review by James ***** December 16, 2025

5/5
I met Dr. Arun Chandnani back in February 2024, as one of the many heart patients. He is very knowledgeable combined with a reassuring manner that put me at ease. I hope he gets to read this and is taking on new patients. I did not have names of all the Doctor's on the team, but if they work at Barnes Jewish Hospital they CARE and are the BEST!
Provider 5/5 Office Staff 5/5
Visited this provider? Share your experience.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARGARET LEIGHTON MCNAIRY MD
Hospitalist
1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110
St. Louis City (314) 362-1700
ANNA RABINOV ANNA RABINOV
Obstetrics & Gynecology
1 BARNES JEWISH HOSPITAL PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 747-3000
MRS. MICHELLE MARIE BLOOM ACNP
Nurse Practitioner (Acute Care)
1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110
St. Louis City (800) 862-9980
DR. FARIS ADAM BAKEER MD
Hospitalist
1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110
St. Louis City (314) 362-1700
DR. REHAN RAIS MD
Hospitalist
1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110
St. Louis City (314) 362-1700
DR. RANDY OLIVIER LAINE MD
Hospitalist
1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST
SAINT LOUIS, MO 63110
St. Louis City (314) 362-1700
DR. BRADLEY SETH KUSHNER MD
Surgery
1 BARNES JEWISH HOSPITAL PLZ, DIV SURG VASCULAR
SAINT LOUIS, MO 63110
St. Louis City (314) 273-7373
MS. KELSEY ELISE FOGUS CRNA
Nurse Anesthetist, Certified Registered
1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63110
St. Louis City (800) 862-9980

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Arun Chandnani's NPI number?

The NPI number for Arun Chandnani is 1558046375. It was assigned to this individual provider in the NPPES registry on June 19, 2023.

Where is Arun Chandnani located?

Arun Chandnani practices at 1 Barnes Jewish Hospital Plz Div Im Hospitalist, Saint Louis, MO 63110. The listed phone number is (314) 362-1700.

What is Arun Chandnani's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Arun Chandnani enrolled in Medicare?

Yes. Arun Chandnani is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Arun Chandnani was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 55 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.