NPPES file of Aug 9, 2026

Sonia Otteman Klein, DNP-FNP

Family Medicine Physician · Saratoga, WY

Sonia Otteman Klein, DNP-FNP is a family medicine physician with a practice address in Saratoga, Wyoming, and NPI 1922728237, issued on Aug 29, 2022. Check the license (Wyoming 50740, as entered in NPPES) on the Wyoming 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
1922728237
Name
Sonia Otteman Klein
Credential
DNP-FNP
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
50740 WY
Self-reported in NPPES; status is on the state search
Practice location
1504 S River St, Saratoga, WY 82331
Phone
(307) 326-3580
Enumerated
Aug 29, 2022
Record last updated
Aug 29, 2022
Medicare enrollment
Enrolled (PECOS I20230118001528); accepts Medicare assignment
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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Verify Sonia Otteman Klein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWyoming Board of Medicine
    Search for license 50740
    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 Wyoming license search

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94% fewer Medicare Part D claims than the average family medicine physician in 2024

227 Medicare Part D claims for 44 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 18 claims were for opioids.

  1. Sonia Klein227
  2. Specialty average3,544

Most prescribed

  1. Tramadol Hcl17 claims
  2. Amlodipine Besylate13 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.

Bills Medicare through one group practice

  1. Buffalo Urgent Care IncBuffalo, WY

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

Sonia Otteman Klein among 400 family medicine physician records in Wyoming

Sonia Otteman Klein, DNP-FNP is one of 400 family medicine physician records with a practice address in Wyoming. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 88% of them.

  • NPI issued2022 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2018 · median 2009 among the 229 with a school on file
  • Record last updated2022 · 50% 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 Wyoming practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 family medicine physician records list a practice address in Saratoga

They are 2 of the 23 NPPES records with a practice address in Saratoga, and 400 family medicine physician records in Wyoming.

The 8 family medicine physician records with the nearest ZIP codes

  1. Bryan Kaiser, MDSaratoga, WY 823311508121468
  2. Archie Kirsch, MDMedicine Bow, WY 823291740368620
  3. David Cesko, MDRawlins, WY 823011497756118
  4. Stephanie Chiu, M.D.Rawlins, WY 823011508152786
  5. Marvin Couch, M.D.Rawlins, WY 823011023031861
  6. Joan Johnson, M.D.Rawlins, WY 823011306008008
  7. Gary Mikesell, DORawlins, WY 823011205884715
  8. Gaurav Patel, MDRawlins, WY 823011023571379

Common questions

What is Sonia Otteman Klein, DNP-FNP's NPI number?

Sonia Otteman Klein, DNP-FNP's National Provider Identifier (NPI) is 1922728237, issued on Aug 29, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Sonia Otteman Klein, DNP-FNP located?

The NPPES record lists a practice address at 1504 S River St, Saratoga, WY, 82331. Phone: (307) 326-3580. Providers update this record themselves, so call before visiting.

How can I verify Sonia Otteman Klein, DNP-FNP's license?

NPPES lists Wyoming license number 50740, as entered by the provider. Search the Wyoming Board of Medicine at https://wyomedboard.wyo.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sonia Otteman Klein, DNP-FNP prescribe under Medicare Part D?

In 2024, Sonia Otteman Klein, DNP-FNP had 227 Medicare Part D claims for 44 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.