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

Dallyn Porter Udall, DO

Individual provider Orthopaedic Surgery Physician · NPI 1164088605

Dallyn Porter Udall, DO practises Orthopedic Surgery in Gilbert, Arizona. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2019, 7 years ago. Practices with Orthopedic Specialists of North America PLLC, a 309-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and California.

Years since qualifying
7
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
AZ, CA
In the registry since
2019
Specialties on file
5
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

2940 E Banner Gateway Dr Ste 200-250
Gilbert, AZ 85234-2168
Phone: (602) 648-5444
Fax: (602) 772-3801
Show map & directions

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

Additional practice locations (1)

  • 10710 N Torrey Pines Rd, La Jolla, CA 92037-1035 — (858) 554-7993

Specialties & licences

Adult Reconstructive Orthopaedic Surgery Physician (primary) Taxonomy 207XS0114X · Licence 011544 (AZ)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 20A19340 (CA)
Adult Reconstructive Orthopaedic Surgery Physician Taxonomy 207XS0114X · Licence 20A19340 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 011544 (AZ)

Record details

NPI number1164088605
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 9, 2019
Last updated in NPPESMay 2, 2025
Certification dateMay 2, 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 2019 (7 years in practice)
Group practice Orthopedic Specialists Of North America Pllc — 309 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.

Hip replacement 44 times · 85th percentile
Knee replacement 58 times · 82nd 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 patients87
Services billed 144 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.

Grant $1,500 1 payment · funding for a project or programme, not a fee for the clinician’s time
Food and Beverage $1,424 15 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $397 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Education $362 1 payment · educational material or training, 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. Those with a page here are linked.

Colleagues at Orthopedic Specialists of North America PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 309 clinicians in the practice; 12 are shown here.

Other providers in Gilbert