NPPES file of Aug 9, 2026

Kenneth Leif Nathaniel Sjoren, DO

Obstetrics & Gynecology Physician · Nampa, ID

Kenneth Leif Nathaniel Sjoren, DO is an obstetrics & gynecology physician with a practice address in Nampa, Idaho, and NPI 1093208134, issued on Jun 13, 2018. Check the license (Idaho O-1672, as entered in NPPES) on the Idaho Board of Medicine; 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
1093208134
Name
Kenneth Leif Nathaniel Sjoren
Credential
DO
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
O-1672 ID
DO219324 OR
Self-reported in NPPES; status is on the state search
Practice location
9850 W St Lukes Dr Ste 229, Nampa, ID 83687
Phone
(208) 205-7700
Enumerated
Jun 13, 2018
Record last updated
Jun 23, 2026
Fax
(208) 205-7701
Medicaid ID
500835019 OR
Medicare enrollment
Enrolled (PECOS I20221005003550); accepts Medicare assignment
Medical or professional school
Pacific Nw Un Of Hs, Col Of Osteopathic Medicine, 2018
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 9850 W St Lukes Dr Ste 229

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

  1. Callie Blair, D.O.Obstetrics & Gynecology Physician1932444239
  2. Mark Clinger, MD - FAMILY PRACTICEFamily Medicine Physician1699769471
  3. Bonnie Rivas, CNMAdvanced Practice Midwife1710561162
  4. Cortney Schnupp, CNMObstetrics & Gynecology Nurse Practitioner1780949164

Verify Kenneth Leif Nathaniel Sjoren in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIdaho Board of Medicine
    Search for license O-1672
    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 Idaho 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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84% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

26 Medicare Part D claims for 16 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Kenneth Leif Sjoren26
  2. Specialty average165

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.

Bills Medicare through one group practice

  1. Valley Family Health Care IncPayette, ID

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

Kenneth Leif Nathaniel Sjoren among 191 obstetrics & gynecology physician records in Idaho

Kenneth Leif Nathaniel Sjoren, DO is one of 191 obstetrics & gynecology physician records with a practice address in Idaho. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 88% of them.

  • NPI issued2018 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2018 · median 2007 among the 128 with a school on file
  • Record last updated2026 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 obstetrics & gynecology physician records list a practice address in Nampa

They are 22 of the 2,005 NPPES records with a practice address in Nampa, and 191 obstetrics & gynecology physician records in Idaho.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Brennan AndersonNampa, ID 836871609222355
  2. Callie Blair, D.O.Nampa, ID 836871932444239
  3. Justin Bruner, D.O.Nampa, ID 836871346580842
  4. Robert Chalmers, M.D.Nampa, ID 836871114973708
  5. Philip Dayley, DONampa, ID 836871306377361
  6. Guillermo Guzman Trevino, MDNampa, ID 836871881828010
  7. Megan KasperNampa, ID 836871285757104
  8. Aileen King, M.D.Nampa, ID 836871689623043

Common questions

What is Kenneth Leif Nathaniel Sjoren, DO's NPI number?

Kenneth Leif Nathaniel Sjoren, DO's National Provider Identifier (NPI) is 1093208134, issued on Jun 13, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth Leif Nathaniel Sjoren, DO located?

The NPPES record lists a practice address at 9850 W St Lukes Dr Ste 229, Nampa, ID, 83687. Phone: (208) 205-7700. Providers update this record themselves, so call before visiting.

How can I verify Kenneth Leif Nathaniel Sjoren, DO's license?

NPPES lists Idaho license number O-1672, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kenneth Leif Nathaniel Sjoren, DO prescribe under Medicare Part D?

In 2024, Kenneth Leif Nathaniel Sjoren, DO had 26 Medicare Part D claims for 16 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.