NPPES file of Aug 9, 2026

Ewa I. Alexander, MD

Sleep Medicine (Internal Medicine) Physician · Fitchburg, WI

Ewa I. Alexander, MD is a sleep medicine (internal medicine) physician with a practice address in Fitchburg, Wisconsin, and NPI 1609092584, issued on Apr 18, 2007. Check the license (Wisconsin 64056-20, as entered in NPPES) on the Wisconsin Medical Examining Board; 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
1609092584
Name
Ewa I. Alexander
Credential
MD
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License number
64056-20 WI
Self-reported in NPPES; status is on the state search
Practice location
2844 Index RD, Fitchburg, WI 53713
Phone
(608) 229-7979
Enumerated
Apr 18, 2007
Record last updated
Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(608) 229-8110
Medicare enrollment
Enrolled (PECOS I20150810001790); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 2002
Telehealth
Offers telehealth (CMS)
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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8 nearest sleep medicine (internal medicine) physician records → All 27 in Wisconsin → Look up another NPI →

Also registered at 2844 Index RD

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

  1. Joseph Crisalli, M.D.Sleep Medicine (Internal Medicine) Physician1417987736
  2. William Donovan, MDSleep Medicine (Internal Medicine) Physician1972556827
  3. Megan Galske, APNPNurse Practitioner1073022356
  4. Harrison Gimbel, MDSleep Medicine (Internal Medicine) Physician1184042723
  5. Tanya Guntly, PA-CPhysician Assistant1932147857
  6. Don Harden, MDSleep Medicine (Internal Medicine) Physician1144380577

Verify Ewa I. Alexander in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 64056-20    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 Wisconsin license search

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56% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

260 Medicare Part D claims for 39 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 14 claims were for opioids.

  1. Ewa Alexander260
  2. Specialty average585

Most prescribed

  1. Ropinirole Er50 claims
  2. Ropinirole Hcl46 claims
  3. Gabapentin36 claims
  4. Modafinil28 claims
  5. Zolpidem Tartrate16 claims
  6. Pregabalin14 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. Dean Health Systems IncFitchburg, WI

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

Ewa I. Alexander among 27 sleep medicine (internal medicine) physician records in Wisconsin

Ewa I. Alexander, MD is one of 27 sleep medicine (internal medicine) physician records with a practice address in Wisconsin. 85% 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 44% of them.

  • NPI issued2007 · 44% of these records are older, 44% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2002 · median 2001 among the 17 with a school on file
  • Record last updated2021 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 sleep medicine (internal medicine) physician records list a practice address in Fitchburg

They are 7 of the 740 NPPES records with a practice address in Fitchburg, and 27 sleep medicine (internal medicine) physician records in Wisconsin.

All 27 in Wisconsin → Every provider in Fitchburg → Sleep Medicine (Internal Medicine) Physician nationwide →

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Joseph Crisalli, M.D.Fitchburg, WI 537131417987736
  2. William Donovan, MDFitchburg, WI 537131972556827
  3. Harrison Gimbel, MDFitchburg, WI 537131184042723
  4. Don Harden, MDFitchburg, WI 537131144380577
  5. Scott Johnson, M.D.Fitchburg, WI 537131790957371
  6. Jacalyn Nelson, MDFitchburg, WI 537131063430833
  7. Mary Klink, MDMadison, WI 537151033185046
  8. Kenneth Casey, MDMadison, WI 537191952384703

Common questions

What is Ewa I. Alexander, MD's NPI number?

Ewa I. Alexander, MD's National Provider Identifier (NPI) is 1609092584, issued on Apr 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ewa I. Alexander, MD located?

The NPPES record lists a practice address at 2844 Index RD, Fitchburg, WI, 53713. Phone: (608) 229-7979. Providers update this record themselves, so call before visiting.

How can I verify Ewa I. Alexander, MD's license?

NPPES lists Wisconsin license number 64056-20, 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 Ewa I. Alexander, MD prescribe under Medicare Part D?

In 2024, Ewa I. Alexander, MD had 260 Medicare Part D claims for 39 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.