NPPES file of Aug 9, 2026

Lydia Horvath

Hospitalist Physician · Sioux Falls, SD

Lydia Horvath is a hospitalist physician with a practice address in Sioux Falls, South Dakota, and NPI 1538803044, issued on Apr 21, 2022. Check the license (South Dakota 17662, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538803044
Name
Lydia Horvath
Primary taxonomy
Hospitalist Physician 208M00000X
License number
17662 SD
Self-reported in NPPES; status is on the state search
Practice location
1305 W 18TH St, Sioux Falls, SD 57105
Phone
(605) 328-4973
Enumerated
Apr 21, 2022
Record last updated
Sep 30, 2025
Medicare enrollment
Enrolled (PECOS I20251014004379); accepts Medicare assignment
Medical or professional school
Rowan University School Of Osteopathic Medicine, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1305 W 18TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Beth AbrahamsonNeonatal Nurse Practitioner1013047380
  2. Unknown AbubakarStudent in an Organized Health Care Education/Training Program1235020959
  3. Mamoon AhmedHospitalist Physician1679184360
  4. Sameer Ahmed, MDHospitalist Physician1619549292
  5. Swetha Alapati, MDHospitalist Physician1982051421
  6. Joseph Alex, MDEmergency Medicine Physician1407484819

Verify Lydia Horvath in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
    Search for license 17662
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Dakota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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98% fewer Medicare Part D claims than the average hospitalist physician in 2024

13 Medicare Part D claims, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Lydia Horvath13
  2. Specialty average521

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.

Bills Medicare through one group practice

  1. Sanford ClinicSioux Falls, SD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lydia Horvath among 99 hospitalist physician records in South Dakota

Lydia Horvath is one of 99 hospitalist physician records with a practice address in South Dakota. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 92% of them.

  • NPI issued2022 · 92% of these records are older, 3% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2022 · median 2012 among the 75 with a school on file
  • Record last updated2025 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

80 hospitalist physician records list a practice address in Sioux Falls

They are 80 of the 6,563 NPPES records with a practice address in Sioux Falls, and 99 hospitalist physician records in South Dakota.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Marc Capitano, MDSioux Falls, SD 571051285612978
  2. Jeremy Cauwels, MDSioux Falls, SD 571051942243100
  3. Kristopher Gage, DC, MDSioux Falls, SD 571051689848046
  4. Jennifer Greco, M.D.Sioux Falls, SD 571051104808104
  5. Jeffrey Heier, MDSioux Falls, SD 571051760437222
  6. Scott Huckins, M.D.Sioux Falls, SD 571051508068305
  7. Randall Lamfers, M.D.Sioux Falls, SD 571051831157106
  8. Jennifer McKay, M.D.Sioux Falls, SD 571051407891716

Common questions

What is Lydia Horvath's NPI number?

Lydia Horvath's National Provider Identifier (NPI) is 1538803044, issued on Apr 21, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Lydia Horvath located?

The NPPES record lists a practice address at 1305 W 18TH St, Sioux Falls, SD, 57105. Phone: (605) 328-4973. Providers update this record themselves, so call before visiting.

How can I verify Lydia Horvath's license?

NPPES lists South Dakota license number 17662, 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 Lydia Horvath prescribe under Medicare Part D?

In 2024, Lydia Horvath had 13 Medicare Part D claims; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

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.