Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Sepein Chiang, DO

Individual provider Orthopaedic Surgery Physician · NPI 1154491710

Sepein Chiang, DO practises Orthopedic Surgery in Phoenix, Arizona. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1998, 28 years ago. Practices with Center for Orthopedic Research and Education LLC, a 252-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
28
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
AZ
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

18444 N 25th Ave Ste 210
Phoenix, AZ 85023-1264
Phone: (623) 537-5600
Fax: (866) 939-2673
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 3880 (AZ)

Record details

NPI number1154491710
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedNovember 9, 2006
Last updated in NPPESAugust 8, 2025
Certification dateAugust 8, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 1998 (28 years in practice)
Group practice Center For Orthopedic Research And Education Llc — 252 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Knee replacement 47 times · 77th percentile
Hip replacement 14 times · 57th percentile
Lower limb (leg) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients372
Services billed 5,558 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Banner Del E. Webb Medical Center Hospital · Sun City West, AZ · listed as Banner Del E Webb Medical Center
  • The Core Institute Specialty Hosp Hospital · Phoenix, AZ

Colleagues at Center for Orthopedic Research and Education LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 252 clinicians in the practice; 12 are shown here.

Other providers in Phoenix