Physician

Mariah Johnson, M.D.

According to 2025 Medicare claims, Mariah Johnson, M.D. (NPI: 1578975991) practices dermatology in the Bend, OR market, with the plurality of this provider's patient population coming from Deschutes, OR. This provider's primary affiliated billing organization is MOUNTAIN WEST DERM - BLACKHART PLLC (NPI: 1447764741; TIN: 813253496) and primary practice location at 97701-8738.

Johnson's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 573 traditional Medicare patients, billed 2,615 HCPCS/CPT codes, and received $454,216 in Medicare payments. The top billing code was 17311 (Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks). Part D data shows 251 prescription claims across 160 beneficiaries totaling $5,213 in drug costs, led by Tretinoin (Tretinoin). Open Payments data shows 1 records totaling $18. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has moved sharply higher in recent years, from $10,162 to $454,216. In contrast, Part D prescription costs started with an early spike, then settled into a lower baseline, moving from $20,514 to $5,213. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Year	Patients	Clm Lines	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	78	302	$10,162
2019	109	343	$9,464
2020	199	760	$78,790
2021	526	3,055	$284,400
2022	435	2,871	$379,622
2023	473	2,029	$391,651
2024	573	2,615	$454,216

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Year	Patients	Claims	Drug Cost
2015	44	65	$20,514
2016	166	369	$115,515
2017	136	293	$107,573
2018	76	149	$8,237
2019	74	165	$39,032
2020	70	138	$5,566
2021	173	360	$12,734
2022	124	209	$6,868
2023	142	240	$5,870
2024	160	251	$5,213

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

Code	Description	Patients	Clm Lines	Total Payment
17311	Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks	353	414	$432
17312	Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks	153	237	$316
12052	Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm	61	61	$133
99212	Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	103	128	$41
88305	Pathology examination of tissue using a microscope, intermediate complexity	106	125	$32

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Tretinoin	Tretinoin	26	750	$1,532
Fluorouracil	Fluorouracil	20	596	$1,280
Doxycycline Monohydrate	Doxycycline Monohydrate	55	627	$671
Cephalexin	Cephalexin	35	372	$488
Clobetasol Propionate	Clobetasol Propionate	11	443	$330

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	1	$18	ABBVIE INC.
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for Mariah Johnson, M.D.?

Tedicare shows public-source Medicare data for Mariah Johnson, M.D. (NPI 1578975991), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does Mariah Johnson, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to Mariah Johnson, M.D.?

Mariah Johnson, M.D. is linked to MOUNTAIN WEST DERM - BLACKHART PLLC (billing NPI 1447764741) in the available physician profile data.

Does Mariah Johnson, M.D. have Open Payments data?

Mariah Johnson, M.D. has 1 connected Open Payments records in the available 2024 summary data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.