NPPES file of Aug 9, 2026

Kathryn Sobieski, M. D.

Internal Medicine Physician · Jackson, WY

Kathryn Sobieski, M. D. is an internal medicine physician with a practice address in Jackson, Wyoming, and NPI 1720125594, issued on Jan 31, 2007. Check the license (Wyoming 6019A, 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
1720125594
Name
Kathryn Sobieski
Credential
M. D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
6019A WY
Self-reported in NPPES; status is on the state search
Practice location
269 W Broadway, Jackson, WY 83001
Phone
(307) 733-6700
Enumerated
Jan 31, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(307) 739-8890
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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Verify Kathryn Sobieski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWyoming Board of Medicine
    Search for license 6019A
    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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100% fewer Medicare Part D claims than the average internal medicine physician in 2024

14 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Kathryn Sobieski14
  2. Specialty average3,176

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.

Kathryn Sobieski among 134 internal medicine physician records in Wyoming

Kathryn Sobieski, M. D. is one of 134 internal medicine physician records with a practice address in Wyoming. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.

  • NPI issued2007 · 54% of these records are older, 41% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2007 · 57% 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 Wyoming practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 internal medicine physician records list a practice address in Jackson

They are 14 of the 608 NPPES records with a practice address in Jackson, and 134 internal medicine physician records in Wyoming.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Cynthia Archer, MDJackson, WY 830011275629024
  2. Glenn Burnett, MDJackson, WY 830011467400747
  3. Dennis Butcher, MDJackson, WY 830011750495578
  4. Blythe Cox, PA CJackson, WY 830011003974262
  5. Jonathan Figg, MDJackson, WY 830011033535216
  6. Joy Lewis, MDJackson, WY 830011710076849
  7. Marcia Lux, MDJackson, WY 830011972531572
  8. Tiffany Milner, M. D.Jackson, WY 830011639323116

Common questions

What is Kathryn Sobieski, M. D.'s NPI number?

Kathryn Sobieski, M. D.'s National Provider Identifier (NPI) is 1720125594, issued on Jan 31, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Sobieski, M. D. located?

The NPPES record lists a practice address at 269 W Broadway, Jackson, WY, 83001. Phone: (307) 733-6700. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Sobieski, M. D.'s license?

NPPES lists Wyoming license number 6019A, 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 Kathryn Sobieski, M. D. prescribe under Medicare Part D?

In 2024, Kathryn Sobieski, M. D. had 14 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.