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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. ZEFR WEI-TIAN CHAO MD
NPI 1508445164
Internal Medicine - Rheumatology in Indiana, PA

Active since April 02, 2021PECOS Enrolled
120 IRMC DR STE 100, INDIANA, PA 15701(724) 427-2260(724) 427-2707 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 8, 2026, Apr 2, 2021 (2 updates tracked since 2021).

About Dr. Zefr Wei-tian Chao Md NPPES

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

DR. ZEFR WEI-TIAN CHAO MD (NPI 1508445164) is an individual rheumatology provider in Indiana, Pennsylvania, licensed in Pennsylvania (MD497398) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1508445164
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. ZEFR WEI-TIAN CHAOCredential: MD
Location Address120 IRMC DR STE 100Indiana, PA 15701-3674
Mailing Address120 Irmc Dr Ste 100Indiana, PA 15701-3674 · (724) 427-2260 · Fax (724) 427-2707
Phone(724) 427-2260
Fax(724) 427-2707
Sole ProprietorYes
Enumeration DateApril 2, 2021
Last NPPES UpdateOctober 8, 20262 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1508445164 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in PA · MD497398
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
120 IRMC DR STE 100, Indiana, PA 15701
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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. Zefr Wei-tian Chao 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 15701 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
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
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.

Other Providers at the Same Location NPPES 4

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

DR. MICHAEL VINCENT SUFFREDINI DO
Family Medicine (Sports Medicine)
120 IRMC DR STE 100
INDIANA, PA 15701
Indiana County (727) 357-8367
GRANT INGALLS MPAS
Physician Assistant
120 IRMC DR STE 100
INDIANA, PA 15701
Indiana County (724) 427-2707
DR. SATHISH PRABU SATHYAMANGALAM SAMIAPPAN MD
Neurological Surgery
120 IRMC DR STE 100
INDIANA, PA 15701
Indiana County (724) 427-2260
BRIAN STONE D.O.
Family Medicine (Sports Medicine)
120 IRMC DR STE 100
INDIANA, PA 15701
Indiana County (724) 427-2260

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 Zefr Chao's NPI number?

The NPI number for Zefr Chao is 1508445164. It was assigned to this individual provider in the NPPES registry on April 2, 2021.

Where is Zefr Chao located?

Zefr Chao practices at 120 Irmc Dr Ste 100, Indiana, PA 15701. The listed phone number is (724) 427-2260.

What is Zefr Chao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Zefr Chao enrolled in Medicare?

Yes. Zefr Chao is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Zefr Chao was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.