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

Dr. Justin Welsh, DO

Individual provider Internal Medicine Physician · NPI 1861933871

Dr. Justin Welsh, DO practises Internal Medicine in Mesa, Arizona. Qualified in 2017, 9 years ago. Practices with Iora Senior Health LLC, a 125-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona, Colorado, Georgia and Massachusetts and 3 more.

Years since qualifying
9
Licensed in
AZ, CO, GA, MA, NC, TX
In the registry since
2017
Specialties on file
8
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

5110 E Southern Ave
Mesa, AZ 85206-2791
Phone: (607) 737-4499
Fax: (415) 252-7176
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2038 Carlton Arms Cir, Bradenton, FL 34208-5067 — (308) 520-0641

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 008375 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence OP61607809 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 1021233 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2024-03131 (NC)
Internal Medicine Physician Taxonomy 207R00000X · Licence V4523 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0074143 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 103296 (GA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1861933871
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 10, 2017
Last updated in NPPESMay 27, 2025
Certification dateMay 27, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Iora Senior Health Llc — 125 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.

Removal of skin lesions 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 patients297
Services billed 1,039 a service is one billed item, such as a visit, a test or a procedure
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 $24 1 payment · 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 Iora Senior Health LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 125 clinicians in the practice; 12 are shown here.

Other providers in Mesa