Mark Lounsbery, D.O
Internal Medicine Physician · Sioux Falls, SD
Mark Lounsbery, D.O is an internal medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1568654648, issued on Aug 13, 2007. Check the license (South Dakota 7272, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Lounsbery
- Credential
- D.O
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 7272 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1205 S Grange Ave Ste 510, Sioux Falls, SD 57105
- Phone
- (605) 328-7500
- Enumerated
- Aug 13, 2007
- Entity
- Type 1 · individual
Also registered at 1205 S Grange Ave Ste 510
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maaz Badshah, MDInternal Medicine Physician1043525520
- Laura Bakke, PA-CPhysician Assistant1962978726
- Cornelius BoerkoelClinical Genetics (M.D.) Physician1902266273
- Ashley Frost, CNPNurse Practitioner1245713361
- Lyndsey HorneNurse Practitioner1023585833
- Kamolyut LapumnuaypolGastroenterology Physician1912357823
Verify Mark Lounsbery in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 7272Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.9 times the Medicare Part D claims of the average internal medicine physician in 2024
10,810 Medicare Part D claims for 744 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 150 claims were for opioids.
Most prescribed
- Atorvastatin Calcium605 claims
- Omeprazole539 claims
- Amlodipine Besylate492 claims
- Rosuvastatin Calcium461 claims
- Levothyroxine Sodium456 claims
- Lisinopril437 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 Medicare quality score for 2023: 76.7 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).
One hospital or facility affiliation
- Sanford Medical CenterSioux Falls, SD
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
189 internal medicine physician records list a Sioux Falls practice address
They are 189 of the 6,563 NPPES records with a Sioux Falls practice address, and 331 internal medicine physician records in South Dakota.
All 189 in Sioux Falls → All 331 in South Dakota → Every provider in Sioux Falls →
Other internal medicine physician records in South Dakota
- Mouhanna Abu Ghanimeh, M.D.Sioux Falls, SD1962812982
- Emad Abu Sitta, M.DSioux Falls, SD1194165977
- Joyce Achenjang, M.DPine Ridge, SD1750736096
- Boakye-Yiadom Adomako, M.D.Yankton, SD1720774771
- Comfort Agaba, MDSioux Falls, SD1891221123
- Abdalah Ahmed, MDSioux Falls, SD1457091993
- Munir Ahmed, M.D.Sisseton, SD1962577585
- Shakeel Ahmed, MDRapid City, SD1356773113
- Ghassan Al-Shbool, MDRapid City, SD1215450937
- Swetha Alapati, MDSioux Falls, SD1982051421
Common questions
What is Mark Lounsbery, D.O's NPI number?
Mark Lounsbery, D.O's National Provider Identifier (NPI) is 1568654648, issued on Aug 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lounsbery, D.O located?
The NPPES record lists a practice address at 1205 S Grange Ave Ste 510, Sioux Falls, SD, 57105. Phone: (605) 328-7500. Providers update this record themselves, so call before visiting.
How can I verify Mark Lounsbery, D.O's license?
NPPES lists South Dakota license number 7272, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Lounsbery, D.O prescribe under Medicare Part D?
In 2024, Mark Lounsbery, D.O had 10,810 Medicare Part D claims for 744 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
What is Mark Lounsbery, D.O's Medicare quality score?
The 2023 MIPS final score is 76.7 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.