NPPES file of Aug 9, 2026

Mark A. Rector, MD

Family Medicine Physician · Sioux Falls, SD

Mark A. Rector, MD is a family medicine physician with a practice address in Sioux Falls, South Dakota, and NPI 1306846993, issued on Jul 26, 2005. Check the license (South Dakota 5048, 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
1306846993
Name
Mark A. Rector
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
5048 SD
Self-reported in NPPES; status is on the state search
Practice location
3401 W 49TH St, Sioux Falls, SD 57106
Phone
(605) 328-1850
Enumerated
Jul 26, 2005
Record last updated
Mar 31, 2022
Fax
(605) 328-1855
Medicaid ID
5611266 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 3401 W 49TH St

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

  1. Barbara Belkham, PAPhysician Assistant1982604690
  2. Scott Boyens, MDFamily Medicine Physician1700886389
  3. Patricia Brooks, MDFamily Medicine Physician1093990277
  4. Elinor Bunde, MDFamily Medicine Physician1750523635
  5. Sarah Hewitt, LPCMental Health Counselor1144794926
  6. Jordyn Hofer, CNPFamily Nurse Practitioner1114698875

Verify Mark A. Rector 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 5048
    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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91% fewer Medicare Part D claims than the average family medicine physician in 2024

325 Medicare Part D claims for 14 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Mark Rector325
  2. Specialty average3,544

Most prescribed

  1. Omeprazole36 claims
  2. Simvastatin29 claims
  3. Lamotrigine24 claims
  4. Escitalopram Oxalate16 claims
  5. Atorvastatin Calcium14 claims
  6. Invega Sustenna14 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.

Mark A. Rector among 601 family medicine physician records in South Dakota

Mark A. Rector, MD is one of 601 family 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, 88% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2022 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

195 family medicine physician records list a practice address in Sioux Falls

They are 195 of the 6,563 NPPES records with a practice address in Sioux Falls, and 601 family medicine physician records in South Dakota.

The 8 family medicine physician records with the nearest ZIP codes

  1. Scott Boyens, MDSioux Falls, SD 571061700886389
  2. Richard Day, MDSioux Falls, SD 571061417952243
  3. Heidi Feistner-Leuning, M.D.Sioux Falls, SD 571061013952324
  4. Lornell Hansen, MDSioux Falls, SD 571061881640233
  5. Kim Jundt, MDSioux Falls, SD 571061801890652
  6. Jeffry Meyer, MDSioux Falls, SD 571061336195643
  7. Bradley Palmer, MDSioux Falls, SD 571061851396378
  8. Kim Pederson, M.D.Sioux Falls, SD 571061487699971

Common questions

What is Mark A. Rector, MD's NPI number?

Mark A. Rector, MD's National Provider Identifier (NPI) is 1306846993, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Rector, MD located?

The NPPES record lists a practice address at 3401 W 49TH St, Sioux Falls, SD, 57106. Phone: (605) 328-1850. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Rector, MD's license?

NPPES lists South Dakota license number 5048, 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 Mark A. Rector, MD prescribe under Medicare Part D?

In 2024, Mark A. Rector, MD had 325 Medicare Part D claims for 14 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.