NPPES file of Aug 9, 2026

Benjamin Lancaster, MD

Orthopaedic Surgery Physician · Yankton, SD

Benjamin Lancaster, MD is an orthopaedic surgery physician with a practice address in Yankton, South Dakota, and NPI 1134649239, issued on Jun 21, 2017. Check the license (South Dakota 13820, 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
1134649239
Name
Benjamin Lancaster
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
13820 SD
Self-reported in NPPES; status is on the state search
Practice location
1104 W 8TH St, Yankton, SD 57078
Phone
(605) 665-7841
Enumerated
Jun 21, 2017
Record last updated
Jul 10, 2025
Fax
(605) 665-8337
Medicare enrollment
Enrolled (PECOS I20230209001533); accepts Medicare assignment
Medical or professional school
Sanford School Of Medicine Of University Of South Dakota, 2017
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 1104 W 8TH St

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

  1. Brent Adams, MDOrthopaedic Surgery Physician1093930521
  2. Cassandra Arens, PAPhysician Assistant1033522966
  3. Sarah ArensPhysician Assistant1669912291
  4. Amber Authier, PA-CMedical Physician Assistant1518679851
  5. Clarissa Barnes, M.D.Internal Medicine Physician1770758757
  6. Leann Bassing, M.D.Rheumatology Physician1871784124

Verify Benjamin Lancaster 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 13820
    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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Industry payments in 2024: $339.43

6 payments; by number, the most common kind was food and beverage; the largest payer was Bioventus LLC. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Benjamin Lancaster$339
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Yankton Medical Clinic PCYankton, SD

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

Benjamin Lancaster among 113 orthopaedic surgery physician records in South Dakota

Benjamin Lancaster, MD is one of 113 orthopaedic surgery physician records with a practice address in South Dakota. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 93% of them.

  • NPI issued2017 · 93% of these records are older, 4% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2017 · median 2005 among the 83 with a school on file
  • Record last updated2025 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in South Dakota

There are 113 orthopaedic surgery physician records in South Dakota.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Brent Adams, MDYankton, SD 570781093930521
  2. Jeremy Kudera, MDYankton, SD 570781063433167
  3. Douglas Neilson, MDYankton, SD 570781457310229
  4. Don Swift, D.O.Yankton, SD 570781164481883
  5. Marcia Nelsen, M.D.Viborg, SD 570701629188289
  6. Michael Adler, MDTea, SD 570641851314124
  7. Keith Baumgarten, MDTea, SD 570641467474452
  8. Evan Hermanson, M.D.Tea, SD 570641316039589

Common questions

What is Benjamin Lancaster, MD's NPI number?

Benjamin Lancaster, MD's National Provider Identifier (NPI) is 1134649239, issued on Jun 21, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin Lancaster, MD located?

The NPPES record lists a practice address at 1104 W 8TH St, Yankton, SD, 57078. Phone: (605) 665-7841. Providers update this record themselves, so call before visiting.

How can I verify Benjamin Lancaster, MD's license?

NPPES lists South Dakota license number 13820, 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.

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.