NPPES file of Aug 9, 2026

Candace N. Zeigler, M.D.

Internal Medicine Physician · Sioux Falls, SD

Candace N. Zeigler, M.D. is an internal medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1235134115, issued on Jun 16, 2005. Check the license (South Dakota 3776, 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
1235134115
Name
Candace N. Zeigler
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
3776 SD
Self-reported in NPPES; status is on the state search
Practice location
1205 S Grange Ave, Sioux Falls, SD 57105
Phone
(605) 328-7500
Enumerated
Jun 16, 2005
Record last updated
Mar 28, 2022
Fax
(605) 328-7599
Medicaid ID
6003654 SD
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 1205 S Grange Ave

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

  1. Backer Abdu, MDGastroenterology Physician1306366760
  2. Mouhanna Abu Ghanimeh, M.D.Gastroenterology Physician1962812982
  3. Muslim Atiq, M.D.Gastroenterology Physician1548475031
  4. Lee Austin, M.D.Gastroenterology Physician1306927074
  5. Barry Bauer, M.D.Pediatrics Physician1831195569
  6. Robert Behrend, MDInternal Medicine Physician1578569000

Verify Candace N. Zeigler 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 3776
    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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94% fewer Medicare Part D claims than the average internal medicine physician in 2024

205 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.

  1. Candace Zeigler205
  2. Specialty average3,176

Most prescribed

  1. Donepezil Hcl24 claims
  2. Memantine Hcl24 claims
  3. Escitalopram Oxalate17 claims
  4. Atorvastatin Calcium14 claims
  5. Digoxin14 claims
  6. Levothyroxine Sodium14 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.

Candace N. Zeigler among 247 internal medicine physician records in South Dakota

Candace N. Zeigler, M.D. is one of 247 internal medicine 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2022 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

110 internal medicine physician records list a practice address in Sioux Falls

They are 110 of the 6,563 NPPES records with a practice address in Sioux Falls, and 247 internal medicine physician records in South Dakota.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Paul Aspaas, M.D.Sioux Falls, SD 571051215932116
  2. Robert Behrend, MDSioux Falls, SD 571051578569000
  3. Emad Beshai, M.D.Sioux Falls, SD 571051528069598
  4. Allen Funk, M.D.Sioux Falls, SD 571051306841291
  5. Gregory Geise, MDSioux Falls, SD 571051144221938
  6. Timothy Hurley, M.D.Sioux Falls, SD 571051194720623
  7. Eric Larson, M.D.Sioux Falls, SD 571051134124019
  8. David Nelson, M.D.Sioux Falls, SD 571051538164066

Common questions

What is Candace N. Zeigler, M.D.'s NPI number?

Candace N. Zeigler, M.D.'s National Provider Identifier (NPI) is 1235134115, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Candace N. Zeigler, M.D. located?

The NPPES record lists a practice address at 1205 S Grange Ave, Sioux Falls, SD, 57105. Phone: (605) 328-7500. Providers update this record themselves, so call before visiting.

How can I verify Candace N. Zeigler, M.D.'s license?

NPPES lists South Dakota license number 3776, 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 Candace N. Zeigler, M.D. prescribe under Medicare Part D?

In 2024, Candace N. Zeigler, M.D. had 205 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.