Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Timothy S Johnson, MD

Individual provider Internal Medicine Physician · NPI 1528222593

Dr. Timothy S Johnson, MD is an Internal Medicine in Tucson, Arizona. Graduated from University of Washington School of Medicine in 2008, 18 years ago. Practices with Arizona Inpatient Medicine Associates LLC, a 70-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
18
Trained at
University of Washington School of Medicine
Licensed in
AZ
In the registry since
2008
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2424 N Wyatt Dr Ste 100
Tucson, AZ 85712-6115
Phone: (520) 324-8621
Fax: (520) 324-3935
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 45028 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence R70572 (AZ)
Hospitalist Physician Taxonomy 208M00000X · Licence 45028 (AZ)

Record details

NPI number1528222593
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2008
Last updated in NPPESJune 26, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Arizona Inpatient Medicine Associates Llc — 70 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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