NPPES file of Aug 9, 2026

Christopher R. Croasdale, MD

Ophthalmology Physician · Madison, WI

Christopher R. Croasdale, MD is an ophthalmology physician with a practice address in Madison, Wisconsin, and NPI 1770520843, issued on May 31, 2006. Check the license (Wisconsin 33372-020, 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
1770520843
Name
Christopher R. Croasdale
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
33372-020 WI
Self-reported in NPPES; status is on the state search
Practice location
1025 Regent St, Madison, WI 53715
Phone
(608) 282-2000
Enumerated
May 31, 2006
Record last updated
Nov 6, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(608) 282-2172
Medicaid ID
1770520843 WI
Medicare enrollment
Enrolled (PECOS I20050915001000); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 1991
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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Also registered at 1025 Regent St

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

  1. Julia Agapov, DOOphthalmology Physician1861428153
  2. James Bell, MDOphthalmology Physician1376860668
  3. Rachel Bushey, ODOptometrist1447949482
  4. Sheila Carlson, MDAnesthesiology Physician1407805138
  5. Neil Farbman, MDOphthalmology Physician1861751364
  6. Judith Fitzgerald, MDOphthalmology Physician1528000536

Verify Christopher R. Croasdale in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 33372-020
    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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12% fewer Medicare Part D claims than the average ophthalmology physician in 2024

1,340 Medicare Part D claims for 345 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Christopher Croasdale1,340
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate354 claims
  2. Fluorometholone304 claims
  3. Ofloxacin200 claims
  4. Ketorolac Tromethamine189 claims
  5. Valacyclovir54 claims
  6. Loteprednol Etabonate28 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 IncMadison, WI

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

Ophthalmology Physician providers in Wisconsin

There are 441 ophthalmology physician records in Wisconsin.

Other ophthalmology physician records in Wisconsin

  1. Vinay Aakalu, MDMilwaukee, WI1851598072
  2. Nausheen Abbas, M.D.West Bend, WI1356665236
  3. Omar Abdelmegid, MDBeaver Dam, WI1760943633
  4. Jacob Abou-Hanna, MDMadison, WI1598394595
  5. Julia Agapov, DOMadison, WI1861428153
  6. Swati Agarwal-Sinha, MDGreen Bay, WI1659578623
  7. Baseer Ahmad, MDMilwaukee, WI1114160918
  8. Hoda Ahmadi, M.D.Elkhorn, WI1447459912
  9. Jihan Akhtar Bhikhapurwala, MDSummit, WI1679894901
  10. Breanna Aldred, MDGreenfield, WI1457932840

Common questions

What is Christopher R. Croasdale, MD's NPI number?

Christopher R. Croasdale, MD's National Provider Identifier (NPI) is 1770520843, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher R. Croasdale, MD located?

The NPPES record lists a practice address at 1025 Regent St, Madison, WI, 53715. Phone: (608) 282-2000. Providers update this record themselves, so call before visiting.

How can I verify Christopher R. Croasdale, MD's license?

NPPES lists Wisconsin license number 33372-020, 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 Christopher R. Croasdale, MD prescribe under Medicare Part D?

In 2024, Christopher R. Croasdale, MD had 1,340 Medicare Part D claims for 345 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.