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

Wendy Y Chen, DO

Individual provider Hematology (Internal Medicine) Physician · NPI 1659317469

Wendy Y Chen, DO practises Hematology/Oncology in Oro Valley, Arizona. Graduated from Ohio University, College of Osteopathic Medicine in 2003, 23 years ago. Practices with Sjhmc Physician Services, a 665-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Indiana.

Years since qualifying
23
Trained at
Ohio University, College of Osteopathic Medicine
Licensed in
AZ, IN
In the registry since
2006
Specialties on file
4
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

1521 E Tangerine Rd Ste 331
Oro Valley, AZ 85755-6223
Phone: (520) 276-2033
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 550 University Blvd, Indianapolis, IN 46202-5149 — (317) 944-5000

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 006210 (AZ)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 02008822A (IN)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 02008822A (IN)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 02008822A (IN)

Record details

NPI number1659317469
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 21, 2006
Last updated in NPPESDecember 22, 2025
Certification dateDecember 22, 2025

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOHIO UNIVERSITY, COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2003 (23 years in practice)
Group practice Sjhmc Physician Services — 665 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients76
Average patient age76

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $685 30 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Sjhmc Physician Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 665 clinicians in the practice; 12 are shown here.