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

Dr. Robert Errol Porter, DO

Individual provider Emergency Medicine Physician · NPI 1275561565

Dr. Robert Errol Porter, DO practises Emergency Medicine in Phoenix, Arizona. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2003, 23 years ago. Practices with Emergency Professional Services PC, a 107-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
23
Trained at
Arizona College of Osteopathic Medicine Mid Western University
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

1111 E McDowell Rd
Phoenix, AZ 85006-2612 Not confirmed with CMS for 11 years — call before visiting
Phone: (602) 839-6968
Fax: (602) 839-4144
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 4400 (AZ)

Record details

NPI number1275561565
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 28, 2006
Last updated in NPPESJanuary 5, 2015

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2003 (23 years in practice)
Group practice Emergency Professional Services Pc — 107 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients213
Services billed 245 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Colleagues at Emergency Professional Services PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 107 clinicians in the practice; 12 are shown here.

Other providers in Phoenix