Margaret Mackay Hortness
Certified Registered Nurse Anesthetist · Sioux Falls, SD
Margaret Mackay Hortness is a certified registered nurse anesthetist with a practice address in Sioux Falls, South Dakota, and NPI 1245625615, issued on Apr 2, 2015. Check the license (South Dakota CR000879, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Mackay Hortness
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License number
- CR000879 SD
Self-reported in NPPES; status is on the state search - Practice location
- 1305 W 18TH St, Sioux Falls, SD 57105
- Phone
- (605) 333-1000
- Enumerated
- Apr 2, 2015
- Record last updated
- Mar 24, 2017 (not updated in 9 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 533 in South Dakota → Look up another NPI →
Also registered at 1305 W 18TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Beth AbrahamsonNeonatal Nurse Practitioner1013047380
- Unknown AbubakarStudent in an Organized Health Care Education/Training Program1235020959
- Mamoon AhmedHospitalist Physician1679184360
- Sameer Ahmed, MDHospitalist Physician1619549292
- Swetha Alapati, MDHospitalist Physician1982051421
- Joseph Alex, MDEmergency Medicine Physician1407484819
Verify Margaret Mackay Hortness in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license CR000879Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 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).
Margaret Mackay Hortness among 533 certified registered nurse anesthetist records in South Dakota
Margaret Mackay Hortness is one of 533 certified registered nurse anesthetist records with a practice address in South Dakota. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 64% of them.
- NPI issued2015 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2017 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
266 certified registered nurse anesthetist records list a practice address in Sioux Falls
They are 266 of the 6,563 NPPES records with a practice address in Sioux Falls, and 533 certified registered nurse anesthetist records in South Dakota.
All 533 in South Dakota → Every provider in Sioux Falls → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Glenda Balthazor, CRNASioux Falls, SD 571051336112366
- Jeffrey Bard, CRNASioux Falls, SD 571051841285707
- James Barnett, CRNASioux Falls, SD 571051730174582
- Thomas Beare, CRNASioux Falls, SD 571051922071893
- Chris Bender, CRNASioux Falls, SD 571051760455372
- Jeanette Berglin, CRNASioux Falls, SD 571051326011123
- Paul Bommersbach, CRNASioux Falls, SD 571051194710939
- Constance Bowar, CRNASioux Falls, SD 571051588637383
Common questions
What is Margaret Mackay Hortness's NPI number?
Margaret Mackay Hortness's National Provider Identifier (NPI) is 1245625615, issued on Apr 2, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Mackay Hortness located?
The NPPES record lists a practice address at 1305 W 18TH St, Sioux Falls, SD, 57105. Phone: (605) 333-1000. Providers update this record themselves, so call before visiting.
How can I verify Margaret Mackay Hortness's license?
NPPES lists South Dakota license number CR000879, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
What is Margaret Mackay Hortness's MIPS final 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), 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.