2026 data CMS NPPES NUCC Taxonomy

Doctors in Mesa, AZ

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in Mesa sourced from the CMS NPPES weekly file — no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

8,842
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
513 providers
Arizona
State
AZ

8,842 healthcare providers across 20 specialties

Mesa, Arizona appears in the CMS National Plan and Provider Enumeration System with 8,842 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Mesa — physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Mesa practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) — more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data — and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Mesa is weighted toward Behavior Technician (513 clinicians, followed by Physical Therapist with 406 and Speech-Language Pathologist with 404). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Arizona's population, Mesa reports roughly 119 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Within Arizona, Mesa ranks #4 of 135 cities tracked by provider count, accounting for 7.2% of the state's registered providers.

For Mesa patients, this directory is most useful as a starting shortlist — searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

8,842
Providers
20
Specialties
#4
of 135 AZ cities
7.2%
of AZ providers
119
Per 100K (state)

Which specialties are most common in Mesa

Behavior Technician 513
Physical Therapist 406
Speech-Language Pathologist 404
Physician Assistant 393
Pharmacist 380
Mental Health Counselor 330
Family Nurse Practitioner 323
Student in an Organized Health Care Education/Training Program 271
Speech-Language Assistant 221
General Practice Dentistry 219
Professional Counselor 219
Internal Medicine Physician 206
Family Medicine Physician 202
Registered Nurse 193
Occupational Therapist 179
Clinical Social Worker 179
Chiropractor 177
Dentist 168
School Registered Nurse 141
Behavior Analyst 138

Healthcare Providers (Page 119)

Name
Thomas Opechowski, M.D.
Psychiatry Physician
Ammon Opie, DC
Physical Medicine & Rehabilitation Physician
Douglas Opie, DC
Chiropractor
Ronald Opris, PHARMD
Pharmacist
John Opuroku, LPC
Clinical Social Worker
Robert Orava, MD
Emergency Medicine Physician
Meghan Orbegoso
Psychiatric/Mental Health Nurse Practitioner
Katharine Ordway, LMSW
Clinical Social Worker
Jocelyn Ore
Physician Assistant
Lisa Oregan, PT
Geriatric Physical Therapist
Sean Oregan, M.D.
Internal Medicine Physician
Rachel Oreilly
Behavior Technician
Jacqueline Orellana
Physician Assistant
Jennifer Orlando
Behavior Technician
Ashley Orozco
Mental Health Counselor
Neicea Orozco
Speech-Language Pathologist
Alyssa Orr, FNP-BC
Family Nurse Practitioner
Micaela Orr, MS SLP
Speech-Language Pathologist
Brian Orrell, DPT
Physical Therapist
Alexis Ortega, COTA/L
Contractor
Diane Ortega, C.N.M.
Advanced Practice Midwife
Larry Ortega
Physical Therapy Assistant
Orestes Ortega, NURSE PRACTITIONER
Home Health Registered Nurse
Kelly Orth
Occupational Therapist
Ashley Ortiz, PA-C
Physician Assistant
Salina Ortiz, RBT
Behavior Technician
Jessica Ory, COTA/L
Occupational Therapy Assistant
Kelsie Osborne
Behavior Technician
Lauren Osbourne, APRN- FNP-C
Family Nurse Practitioner
Carolyn Osenbau, LAC
Mental Health Counselor
Fredrick Osorio, M.D.
Nephrology Physician
Gabriela Osorio, RN
Registered Nurse
Kenneth Osorio, MD
Phlebology Physician
Raul Osorio, MD
Gynecology Physician
Melissa Ostaszewski, CCP
Perfusionist
Crystal Ostermeyer, PA-C
Physician Assistant
Nathan Ostler, FNP-C
Family Nurse Practitioner
Dow Ostlund, MA, MS, LAC
Mental Health Counselor
Tammy Ostroski, APNP
Family Nurse Practitioner
Carlos Osuna
Physical Therapist
Kristen Ota, PHARMD
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist
Renee Otte, RN
Registered Nurse
Sarah Otter, DO
Family Medicine Physician
Elizabeth Ottney, DO
Family Medicine Physician
Michone Ouellette, D.C.
Chiropractor
Robert Ouimette, LMSW
Mental Health Counselor
Jordan Overstreet
Dentist
Alexandrea Oviatt, MS LAC
Professional Counselor
Andrew Owe, DDS
General Practice Dentistry
Cristiana Owen, RD
Registered Dietitian

Nearby Cities in Arizona

Other Arizona cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Mesa, AZ?
There are 8,842 registered healthcare providers in Mesa, AZ, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Mesa?
The most common specialties in Mesa are Behavior Technician, Physical Therapist, Speech-Language Pathologist, Physician Assistant, Pharmacist. Behavior Technician has the most providers with 513.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.