Mariah Johnson, M.D.
Dermatology Physician · Portland, OR
Mariah Johnson, M.D. is a dermatology physician with a practice address in Portland, Oregon, and NPI 1578975991, issued on May 21, 2014. Check the license (Oregon 187670, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mariah Johnson
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 187670 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3303 SW Bond Ave # 16D, Portland, OR 97239
- Phone
- (503) 418-3376
- Enumerated
- May 21, 2014
- Record last updated
- Aug 27, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180626001333); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 209 in Oregon → Look up another NPI →
Also registered at 3303 SW Bond Ave # 16D
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tracy Funk, MDDermatology Physician1053536268
- Teri Greiling, MD, PHDDermatology Physician1609168913
- Melinda Riter, MD, PHDDermatology Physician1699090092
Verify Mariah Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license 187670Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average dermatology physician in 2024
251 Medicare Part D claims for 160 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Doxycycline Monohydrate55 claims
- Cephalexin35 claims
- Tretinoin26 claims
- Doxycycline Hyclate25 claims
- Fluorouracil20 claims
- Hydrocodone-Acetaminophen19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.66
1 payment: food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mountain West Derm - Blackhart PLLCRoseburg, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariah Johnson among 209 dermatology physician records in Oregon
Mariah Johnson, M.D. is one of 209 dermatology physician records with a practice address in Oregon. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2014 · median 2008 among the 143 with a school on file
- Record last updated2018 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Oregon
There are 209 dermatology physician records in Oregon.
All 209 in Oregon → Every provider in Portland → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Samuel Bremmer, M.D.Portland, OR 972391053553321
- Nicole Fett, MDPortland, OR 972391184682437
- Tracy Funk, MDPortland, OR 972391053536268
- Teri Greiling, MD, PHDPortland, OR 972391609168913
- Jon Hanifin, MDPortland, OR 972391336157882
- Rajan Kulkarni, M.D.Portland, OR 972391902040777
- Sabra Leitenberger, M.D.Portland, OR 972391528250727
- Lynne Morrison, MDPortland, OR 972391174538664
Common questions
What is Mariah Johnson, M.D.'s NPI number?
Mariah Johnson, M.D.'s National Provider Identifier (NPI) is 1578975991, issued on May 21, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Mariah Johnson, M.D. located?
The NPPES record lists a practice address at 3303 SW Bond Ave # 16D, Portland, OR, 97239. Phone: (503) 418-3376. Providers update this record themselves, so call before visiting.
How can I verify Mariah Johnson, M.D.'s license?
NPPES lists Oregon license number 187670, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mariah Johnson, M.D. prescribe under Medicare Part D?
In 2024, Mariah Johnson, M.D. had 251 Medicare Part D claims for 160 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Mariah Johnson, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.