NPPES file of Aug 9, 2026

William L. Cowardin, MD

Nephrology Physician · St Cloud, MN

William L. Cowardin, MD is a nephrology physician with a practice address in St Cloud, Minnesota, and NPI 1356332829, issued on Nov 2, 2005. Check the license (Minnesota 30744, as entered in NPPES) on the Minnesota Board of Medical Practice; 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
1356332829
Name
William L. Cowardin
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
30744 MN
Self-reported in NPPES; status is on the state search
Practice location
1200 Sixth Ave North, St Cloud, MN 58303
Phone
(320) 252-5131
Enumerated
Nov 2, 2005
Record last updated
Mar 7, 2023
Fax
(320) 240-2118
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 William L. Cowardin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 30744
    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 Minnesota license search

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91% fewer Medicare Part D claims than the average nephrology physician in 2024

129 Medicare Part D claims for 52 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. William Cowardin129
  2. Specialty average1,465

Most prescribed

  1. Sodium Chloride16 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.

William L. Cowardin among 261 nephrology physician records in Minnesota

William L. Cowardin, MD is one of 261 nephrology physician records with a practice address in Minnesota. 82% 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, 90% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 73% of these records are
  • Record last updated2023 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 nephrology physician records list a practice address in St Cloud

They are 8 of the 474 NPPES records with a practice address in St Cloud, and 261 nephrology physician records in Minnesota.

The 8 nephrology physician records with the nearest ZIP codes

  1. Michelle Woinarowicz, FNPWarren, MN 567621336151257
  2. Milagros Zegarra, MDBemidji, MN 566011437355732
  3. Shakeel Anjum, MDSaint Cloud, MN 563031639169394
  4. Erin Boeckman, RNSaint Cloud, MN 563031093051799
  5. Jennifer Hager, RNSt Cloud, MN 563031619246139
  6. Chad Haroldson, MDSt Cloud, MN 563031518927433
  7. Jodi Hemminger, RNSt Cloud, MN 563031174892699
  8. Srilakshmi Lankireddy, MBBSSaint Cloud, MN 563031376706580

Common questions

What is William L. Cowardin, MD's NPI number?

William L. Cowardin, MD's National Provider Identifier (NPI) is 1356332829, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William L. Cowardin, MD located?

The NPPES record lists a practice address at 1200 Sixth Ave North, St Cloud, MN, 58303. Phone: (320) 252-5131. Providers update this record themselves, so call before visiting.

How can I verify William L. Cowardin, MD's license?

NPPES lists Minnesota license number 30744, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William L. Cowardin, MD prescribe under Medicare Part D?

In 2024, William L. Cowardin, MD had 129 Medicare Part D claims for 52 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.