Registry data as of Aug 27, 2026

Stephen Billion, M.D.

Internal Medicine Physician · Sioux Falls, SD

Stephen Billion, M.D. is an internal medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1497790984, issued on Jun 18, 2006. Check the license on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1497790984
Name
Stephen Billion
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
1200 S 7TH Ave, Sioux Falls, SD 57105
Phone
(605) 336-2140
Enumerated
Jun 18, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1200 S 7TH Ave

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

  1. Roberto Anel, MDFamily Medicine Physician1841411444
  2. Courtney Backer, M.D.Pediatrics Physician1356723308
  3. Kimberly BarberFamily Nurse Practitioner1154462091
  4. Billie Baxa, PACPhysician Assistant1346294857
  5. April Beninga, DNP, FNP-CFamily Nurse Practitioner1083017560
  6. Madisyn Braun, MDFamily Medicine Physician1346944782

Verify Stephen Billion in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic ExaminersCheck 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.

87% fewer Medicare Part D claims than the average internal medicine physician in 2024

351 Medicare Part D claims for 11 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Stephen Billion351
  2. Specialty average2,785

Most prescribed

  1. Acetic Acid27 claims
  2. Donepezil Hcl25 claims
  3. Furosemide25 claims
  4. Humalog Kwikpen U-10013 claims
  5. Levothyroxine Sodium13 claims
  6. Hydroxychloroquine Sulfate12 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.

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.

Other internal medicine physician records in South Dakota

  1. Mouhanna Abu Ghanimeh, M.D.Sioux Falls, SD1962812982
  2. Emad Abu Sitta, M.DSioux Falls, SD1194165977
  3. Joyce Achenjang, M.DPine Ridge, SD1750736096
  4. Boakye-Yiadom Adomako, M.D.Yankton, SD1720774771
  5. Comfort Agaba, MDSioux Falls, SD1891221123
  6. Abdalah Ahmed, MDSioux Falls, SD1457091993
  7. Munir Ahmed, M.D.Sisseton, SD1962577585
  8. Shakeel Ahmed, MDRapid City, SD1356773113
  9. Ghassan Al-Shbool, MDRapid City, SD1215450937
  10. Swetha Alapati, MDSioux Falls, SD1982051421

Common questions

What is Stephen Billion, M.D.'s NPI number?

Stephen Billion, M.D.'s National Provider Identifier (NPI) is 1497790984, issued on Jun 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Billion, M.D. located?

The NPPES record lists a practice address at 1200 S 7TH Ave, Sioux Falls, SD, 57105. Phone: (605) 336-2140. Providers update this record themselves, so call before visiting.

How can I verify Stephen Billion, M.D.'s license?

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 Stephen Billion, M.D. prescribe under Medicare Part D?

In 2024, Stephen Billion, M.D. had 351 Medicare Part D claims for 11 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

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.