Dr. Mark W. Johnson, MD
- Medicare services, 2024
- 351
- Medicare patients, 2024
- 172
- MIPS score, 2024
- 83
- Industry payments
- $241
- State license
- 1
- Practice address
- 1305 W 18th St, Sioux Falls, SD 57105
- Practice phone
- Call (605) 333-1720
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Johnson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark W. Johnson is a clinical pathology/laboratory medicine physician in Sioux Falls, South Dakota
Dr. Johnson practices in Sioux Falls, South Dakota.
Dr. Johnson's NPI, 1558347765, was assigned on December 20, 2005. Dr. Johnson holds South Dakota license 3451.
- NPI
- 1558347765NPI Registry (opens in a new tab)
- NPI enumeration date
- December 20, 2005
- NPI status
- Active
- Practice phone
- (605) 333-1720
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Mark W. Johnson's practice address is in Sioux Falls, South Dakota
Dr. Johnson's practice address in the NPI Registry is 1305 W 18th St, Sioux Falls, SD 57105, in Minnehaha County. The practice phone is (605) 333-1720.
- NPI Registry address1305 W 18th St, Sioux Falls, SD 57105 · Minnehaha CountyPhone(605) 333-1720
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Mark W. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Johnson's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark W. Johnson is one of 10 clinical pathology/laboratory medicine physicians in South Dakota
Clinical pathology/laboratory medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207ZP0105X. Dr. Johnson is licensed in South Dakota.
Specialties and state licenses
- Clinical pathology/laboratory medicine, South DakotaPrimary
Clinical pathology/laboratory medicine physicians near Dr. Johnson
Counts of clinical pathology/laboratory medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark W. Johnson billed Medicare for 351 services in 2024
CMS data shows 351 Medicare services from Dr. Johnson across 8 procedure codes in 2024, for 172 Medicare patients. Medicare paid $8,160 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,3262024: 35185%
- Other services
- 2023: 142024: 0100%
Dr. Johnson compared with the South Dakota median for clinical pathology/laboratory medicine physicians, 2024
- Dr. Johnson
- South Dakota median
- Medicare services
- 351vs 3,12689% below
Medians across 10 clinical pathology/laboratory medicine physicians in South Dakota with Dmand AI profiles that report each measure.
Dr. Johnson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Johnson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnson and other clinical pathology/laboratory medicine physicians in South Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark W. Johnson treated 172 Medicare patients in 2024, average age 74
CMS counts 172 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 86 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.75, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women8147%
- Men9153%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis46%
- Ischemic heart disease40%
- Cancer31%
- Chronic kidney disease30%
- Diabetes30%
- Anxiety26%
Share of Medicare patients with each condition. A patient can have several.
Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark W. Johnson scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Johnson for performance year 2024, reported as part of a group.
Dr. Johnson's MIPS scores, performance year 2024
- 83of 100Final score
- 75.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark W. Johnson received $241 in industry payments in 2019
CMS Open Payments shows 8 general payments to Dr. Johnson from 1 drug or device company in 2019. Food and beverage make up the largest share, 86% of the total. Beckman Coulter, Inc. paid the most, $241.
General payments to Dr. Johnson by kind, 2019 to 2019
- Food and beverage$20786%
- Travel and lodging$3414%
Companies that paid Dr. Johnson the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark W. Johnson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Medicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark W. Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark W. Johnson's NPI number?
Dr. Mark W. Johnson's NPI number is 1558347765. It was assigned on December 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark W. Johnson?
Dr. Mark W. Johnson is a clinical pathology/laboratory medicine physician in Sioux Falls, South Dakota. The primary specialty in the NPI Registry is Clinical Pathology/Laboratory Medicine Physician (taxonomy code 207ZP0105X).
Where does Dr. Mark W. Johnson practice?
Dr. Johnson practices at 1305 W 18th St, Sioux Falls, SD 57105.
What is Dr. Mark W. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (605) 333-1720.
What is Dr. Mark W. Johnson's medical license number?
Dr. Johnson holds South Dakota license 3451.
Does Dr. Mark W. Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 351 services in 2024.
What is Dr. Mark W. Johnson's MIPS score?
Dr. Johnson's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mark W. Johnson see?
CMS counts 172 Medicare patients who saw Dr. Johnson in 2024, with an average age of 74.
What services does Dr. Mark W. Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88342) and lab and pathology test (85060).
Has Dr. Mark W. Johnson received payments from drug or device companies?
CMS Open Payments shows $241 in general payments to Dr. Johnson from 1 company from 2019 to 2019. The largest total came from Beckman Coulter, Inc.
How long has Dr. Mark W. Johnson been practicing?
Dr. Johnson's NPI was assigned in 2005.
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