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

Mariah Johnson, MD

Individual provider Dermatology Physician · NPI 1578975991

Mariah Johnson, MD is a Dermatology in Portland, Oregon. Qualified in 2014, 12 years ago. Practices with Mountain West Derm - Blackhart PLLC, a 103-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
12
Licensed in
OR
In the registry since
2014
Specialties on file
2
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

3303 SW Bond Ave # 16D
Portland, OR 97239
Phone: (503) 418-3376
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 187670 (OR)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1578975991
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 21, 2014
Last updated in NPPESAugust 27, 2018

Medicare enrollment

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

Medicare specialtyDERMATOLOGY
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Mountain West Derm - Blackhart Pllc — 103 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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