NPPES file of Aug 9, 2026

Tonya R. Adamiak, M.D.

Pediatric Gastroenterology Physician · Sioux Falls, SD

Tonya R. Adamiak, M.D. is a pediatric gastroenterology physician with a practice address in Sioux Falls, South Dakota, and NPI 1174570659, issued on May 28, 2006. Check the license (South Dakota 7451, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174570659
Name
Tonya R. Adamiak
Credential
M.D.
Primary taxonomy
Pediatric Gastroenterology Physician 2080P0206X
License numbers
7451 SD
49304 WI
Self-reported in NPPES; status is on the state search
Practice location
911 E 20TH St Ste 510, Sioux Falls, SD 57105
Phone
(605) 322-3666
Enumerated
May 28, 2006
Record last updated
Aug 5, 2026
Fax
(605) 504-9920
Medicare enrollment
Enrolled (PECOS I20090812000199); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 2003
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 911 E 20TH St Ste 510

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

  1. Melissa Jensen, MDPediatrics Physician1932365525

Verify Tonya R. Adamiak 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 7451
    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

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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.

  1. Qualityout of 100 · 30% of the final score78.6
  2. Costout of 100 · 30%44.6
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $91.41

5 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 1,184 providers of this specialty with any payment received $2,585.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tonya Adamiak$91.41
  2. Specialty average$2,585.05

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. Sanford Medical CenterSioux Falls, SD

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

Pediatric Gastroenterology Physician providers in South Dakota

There are 4 pediatric gastroenterology physician records in South Dakota.

The 3 pediatric gastroenterology physician records with the nearest ZIP codes

  1. Moises Alatorre Jimenez, MDSioux Falls, SD 571051205324530
  2. Brock Doubledee, D.O.Sioux Falls, SD 571051013994730
  3. Stephen Nanton, M.D.Sioux Falls, SD 571051770559007

Common questions

What is Tonya R. Adamiak, M.D.'s NPI number?

Tonya R. Adamiak, M.D.'s National Provider Identifier (NPI) is 1174570659, issued on May 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tonya R. Adamiak, M.D. located?

The NPPES record lists a practice address at 911 E 20TH St Ste 510, Sioux Falls, SD, 57105. Phone: (605) 322-3666. Providers update this record themselves, so call before visiting.

How can I verify Tonya R. Adamiak, M.D.'s license?

NPPES lists South Dakota license number 7451, 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.

What is Tonya R. Adamiak, M.D.'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.