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Critical Care Doctors (Internal Medicine) in Arizona

Data updated monthly · Last refresh October 2026

182 Critical Care Medicine (Internal Medicine) providers practice in Arizona, including 28 (15%) offering telehealth. The largest concentration is in Scottsdale. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

182providers
28telehealth
Scottsdaletop city

Critical Care Medicine (Internal Medicine) by city in Arizona

Choose a city to see providers there.

Critical Care Medicine (Internal Medicine) in Scottsdale43 providers
Critical Care Medicine (Internal Medicine) in Phoenix41 providers
Critical Care Medicine (Internal Medicine) in Tucson23 providers
Critical Care Medicine (Internal Medicine) in Chandler20 providers
Critical Care Medicine (Internal Medicine) in Mesa11 providers
Critical Care Medicine (Internal Medicine) in Yuma7 providers
Critical Care Medicine (Internal Medicine) in Glendale6 providers
Critical Care Medicine (Internal Medicine) in Flagstaff6 providers
Critical Care Medicine (Internal Medicine) in Prescott6 providers
Critical Care Medicine (Internal Medicine) in Kingman5 providers
Critical Care Medicine (Internal Medicine) in Sun City West5 providers
Critical Care Medicine (Internal Medicine) in Gilbert4 providers
Critical Care Medicine (Internal Medicine) in Sun City2 providers
Critical Care Medicine (Internal Medicine) in Cave Creek1 providers
Critical Care Medicine (Internal Medicine) in Goodyear1 providers
Critical Care Medicine (Internal Medicine) in Cottonwood1 providers

Critical Care Medicine (Internal Medicine) providers in Arizona

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Sripathi Ramakrishna, M.D.
Sun City West, AZ · No drug or device payments recorded (2025) · (623) 524-8814
Dr. Waseem Albasha
Sun City West, AZ · $850 in drug and device payments (2025) · (623) 524-8814
Dr. Antara Mallampalli, MD
Tucson, AZ · No drug or device payments recorded (2025) · (520) 885-1402
Dr. Anthony Courey, M.D.
Tucson, AZ · $142 in drug and device payments (2025) · (520) 742-9000
Dr. Brian Shon, MD
Tucson, AZ · No drug or device payments recorded (2025) · (520) 722-1087
Dr. David Garrison, M.D.
Tucson, AZ · $120 in drug and device payments (2025) · (520) 626-7233
Dr. Dean Prater, MD
Tucson, AZ · No drug or device payments recorded (2025) · (520) 296-3211
Dr. Edward Omron, M.D., M.P.H., FCCP
Tucson, AZ · No drug or device payments recorded (2025) · (520) 742-9000
Dr. Erick Perez Sifontes, MD
Tucson, AZ · $150 in drug and device payments (2025) · (520) 324-5695
Dr. Fredy Toiber, M.D.
Tucson, AZ · No drug or device payments recorded (2025) · (520) 885-1402
Dr. Husam Nayef, M.D
Tucson, AZ · $754 in drug and device payments (2025) · (520) 694-8888
Dr. Husnain Waseem
Tucson, AZ · No drug or device payments recorded (2025) · (520) 296-3211
Dr. Jonathan Pak, M.D.
Tucson, AZ · No drug or device payments recorded (2025) · (520) 742-9000
Dr. Julia Longville
Tucson, AZ · No drug or device payments recorded (2025) · (520) 621-2211
Dr. Kelly Wickstrom, D.O.
Tucson, AZ · $37 in drug and device payments (2025) · (520) 324-5696
Dr. Lisa Kaiser, D.O.
Tucson, AZ · No drug or device payments recorded (2025) · (520) 742-9000
Dr. Michael Insel
Tucson, AZ · $19 in drug and device payments (2025) · Telehealth · (520) 626-6380
Dr. Mohammad Khedr, MD
Tucson, AZ · No drug or device payments recorded (2025) · (520) 742-9000
Dr. Nick Azarov, MD
Tucson, AZ · $92 in drug and device payments (2025) · (520) 742-9000
Dr. Raj Joshi, M.D.
Tucson, AZ · No drug or device payments recorded (2025) · (520) 694-0111
Dr. Richard Ciezki, M.D.
Tucson, AZ · $452 in drug and device payments (2025) · (702) 562-5831
Dr. Sam Alnajjar, MD
Tucson, AZ · No drug or device payments recorded (2025) · (480) 861-1415
Dr. Sarah Upson, MD
Tucson, AZ · $16 in drug and device payments (2025) · (520) 324-5461
Dr. Tiffany Ynosencio, M.D.
Tucson, AZ · No drug or device payments recorded (2025) · (972) 415-9114
Dr. Wesley Cook, MD
Tucson, AZ · No drug or device payments recorded (2025) · (520) 296-3211
Dr. Alberto Mejia, MD
Yuma, AZ · $69 in drug and device payments (2025) · (928) 344-2000
Dr. Aneesh Kumar, MD
Yuma, AZ · $194 in drug and device payments (2025) · (928) 344-2000
Dr. Azeberoje Osueni
Yuma, AZ · $69 in drug and device payments (2025) · (928) 344-2000
Dr. Kulothungan Gunasekaran, MBBS
Yuma, AZ · $1,956 in drug and device payments (2025) · (928) 336-2434
Dr. Nataliya Kozodoy, M.D.
Yuma, AZ · $103 in drug and device payments (2025) · (928) 344-2000
Dr. Pavel Sinyagovskiy
Yuma, AZ · $257 in drug and device payments (2025) · (928) 344-2000
Dr. Sridhar Rajamani, M.D.
Yuma, AZ · No drug or device payments recorded (2025) · (928) 317-9100

Common questions

How many Critical Care Medicine (Internal Medicine) providers are in Arizona?

There are 182 Critical Care Medicine (Internal Medicine) providers with active NPI records practicing in Arizona, according to federal NPPES data refreshed monthly.

Do Critical Care Medicine (Internal Medicine) providers in Arizona offer telehealth?

Yes. 28 of the 182 Critical Care Medicine (Internal Medicine) providers in Arizona (about 15%) report offering telehealth services in CMS data.

Which cities in Arizona have the most Critical Care Medicine (Internal Medicine) providers?

Scottsdale (43), Phoenix (41), Tucson (23) have the highest concentration of Critical Care Medicine (Internal Medicine) providers in Arizona.

How many Critical Care Medicine (Internal Medicine) providers in Arizona received drug or device company payments?

90 of 182 Critical Care Medicine (Internal Medicine) providers in Arizona (49%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

Do most Critical Care Doctors (Internal Medicine) in Arizona work in independent practices or large health systems?

Among 136 Critical Care Doctors (Internal Medicine) in Arizona enrolled in Medicare, 4% bill through a solo or small practice with fewer than 10 clinicians, 26% through a mid-size group of 10 to 99, and 69% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.

Which hospitals do Critical Care Doctors (Internal Medicine) in Arizona work at?

According to CMS facility affiliation records, the Arizona hospitals where the most Critical Care Doctors (Internal Medicine) hold privileges are Chandler Regional Medical Center in Chandler; St Josephs Hospital and Medical Center in Phoenix; Mayo Clinic Hospital in Phoenix.

Related reading on HealthcareDiscovery.AI

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Related

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Critical Care Medicine (Internal Medicine) in Arizona? Get featured.