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

Dr. John Maurice Mahan, MD

Individual provider Addiction Psychiatry Physician · NPI 1558652693

Dr. John Maurice Mahan, MD is a Psychiatry in Medford, Oregon. Graduated from Oregon Health & Sciences Univ School of Dentistry in 2011, 15 years ago. Practices with County of Jackson, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oregon.

Years since qualifying
15
Trained at
Oregon Health & Sciences Univ School of Dentistry
Licensed in
OR
In the registry since
2011
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

140 S Holly St
Medford, OR 97501-3113
Phone: (541) 774-8201
Fax: (541) 774-7979
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD176522 (OR)
Addiction Psychiatry Physician Taxonomy 2084P0802X · Licence MD176522 (OR)

Record details

NPI number1558652693
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 24, 2011
Last updated in NPPESJanuary 4, 2017

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOREGON HEALTH & SCIENCES UNIV SCHOOL OF DENTISTRY
Graduated 2011 (15 years in practice)
Group practice County Of Jackson — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services