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

Ryan Michael Johnston, DO

Individual provider Internal Medicine Physician · NPI 1780815522

Ryan Michael Johnston, DO is an Internal Medicine in Escondido, California. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2009, 17 years ago. Practices with Vituity - Michigan Hospitalists PC, a 74-clinician group and accepts Medicare assignment. Licensed in Arizona, California and Michigan.

Years since qualifying
17
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
AZ, CA, MI
In the registry since
2009
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

460 N Elm St
Escondido, CA 92025-3002
Phone: (760) 520-8100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 20A12236 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 008808 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 5101018515 (MI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 20A12236 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence 008808 (AZ)

Record details

NPI number1780815522
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJuly 28, 2009
Last updated in NPPESMay 26, 2022
Certification dateMay 26, 2022
Mailing address425 N Date St, Escondido, CA 92025-3413

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2009 (17 years in practice)
Group practice Vituity - Michigan Hospitalists Pc — 74 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Escondido