Karen C. Swallen, MD
Hospitalist Physician · Baraboo, WI
Karen C. Swallen, MD is a hospitalist physician with a practice address in Baraboo, Wisconsin, and NPI 1023242831, issued on May 7, 2009. Check the license (Wisconsin 55345-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karen C. Swallen
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 55345-20 WI
55354 WI
Self-reported in NPPES; status is on the state search - Practice location
- 707 14TH St, Baraboo, WI 53913
- Phone
- (608) 356-1400
- Enumerated
- May 7, 2009
- Record last updated
- Mar 8, 2025
- Medicaid ID
- 1023242831 WI
- Medicare enrollment
- Enrolled (PECOS I20121102000045); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 894 in Wisconsin → Look up another NPI →
Also registered at 707 14TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Daniel Beaver, MDEmergency Medical Services (Emergency Medicine) Physician1558340539
- Edward Bueno, MDEmergency Medical Services (Emergency Medicine) Physician1568441087
- Reva Decorah, RNRegistered Nurse1487479788
- Daniel Dingmann, MSClinical Exercise Physiologist1568700789
Verify Karen C. Swallen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 55345-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% more Medicare Part D claims than the average hospitalist physician in 2024
825 Medicare Part D claims for 179 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium61 claims
- Omeprazole32 claims
- Levothyroxine Sodium31 claims
- Lisinopril31 claims
- Amlodipine Besylate30 claims
- Simvastatin30 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
- Dean Health Systems IncBaraboo, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen C. Swallen among 894 hospitalist physician records in Wisconsin
Karen C. Swallen, MD is one of 894 hospitalist physician records with a practice address in Wisconsin. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 30% of them.
- NPI issued2009 · 30% of these records are older, 66% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2008 · median 2011 among the 768 with a school on file
- Record last updated2025 · 29% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 hospitalist physician records list a practice address in Baraboo
They are 6 of the 410 NPPES records with a practice address in Baraboo, and 894 hospitalist physician records in Wisconsin.
All 894 in Wisconsin → Every provider in Baraboo → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Alison Howen, MDBaraboo, WI 539131376124867
- David Jarvis, M.D.Baraboo, WI 539131548365844
- Justin Lynch, MDBaraboo, WI 539131437891843
- Jack Massee, DOBaraboo, WI 539131316409196
- Jamie Petzke, MDBaraboo, WI 539131811459605
- Jagdev Bhatoya, MDWaupun, WI 539631811906555
- Eileen Reilly, MDWaupun, WI 539631700865573
- Luisa Barrueto, DOMadison, WI 537921548841067
Common questions
What is Karen C. Swallen, MD's NPI number?
Karen C. Swallen, MD's National Provider Identifier (NPI) is 1023242831, issued on May 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Karen C. Swallen, MD located?
The NPPES record lists a practice address at 707 14TH St, Baraboo, WI, 53913. Phone: (608) 356-1400. Providers update this record themselves, so call before visiting.
How can I verify Karen C. Swallen, MD's license?
NPPES lists Wisconsin license number 55345-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen C. Swallen, MD prescribe under Medicare Part D?
In 2024, Karen C. Swallen, MD had 825 Medicare Part D claims for 179 beneficiaries; the average among hospitalist physician prescribers was 521. 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.