Charles Hejny, MD
Retina Specialist (Ophthalmology) Physician · Neenah, WI
Charles Hejny, MD is a retina specialist (ophthalmology) physician with a practice address in Neenah, Wisconsin, and NPI 1922013671, issued on Jul 30, 2006. Check the license (Wisconsin 44243020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Charles Hejny
- Credential
- MD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- 44243020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 200 Theda Clark Plaza, Neenah, WI 54956
- Phone
- (920) 751-8666
- Enumerated
- Jul 30, 2006
- Record last updated
- Dec 11, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (920) 751-8676
- Medicaid ID
- 34209000 WI
- Medicare enrollment
- Enrolled (PECOS I20040602001404); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1997
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 27 in Wisconsin → Look up another NPI →
Also registered at 200 Theda Clark Plaza
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Khalid Kahook, M.D.,Retina Specialist (Ophthalmology) Physician1356640726
- John Rosculet, MDRetina Specialist (Ophthalmology) Physician1679580070
- Martin Viebahn, MDOphthalmology Physician1164437802
Verify Charles Hejny in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44243020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
115 Medicare Part D claims for 49 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Ketorolac Tromethamine34 claims
- Latanoprost22 claims
- Prednisolone Acetate17 claims
- Brimonidine Tartrate15 claims
- Timolol Maleate14 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
- Northeast Wisconsin Retina Associates SCSheboygan, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Hejny among 27 retina specialist (ophthalmology) physician records in Wisconsin
Charles Hejny, MD is one of 27 retina specialist (ophthalmology) physician records with a practice address in Wisconsin. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 59% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated1997 · median 2011 among the 23 with a school on file
- Record last updated2017 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in Wisconsin
There are 27 retina specialist (ophthalmology) physician records in Wisconsin.
All 27 in Wisconsin → Every provider in Neenah → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Rajeev Buddi, MDNeenah, WI 549561700819281
- Khalid Kahook, M.D.,Neenah, WI 549561356640726
- John Rosculet, MDNeenah, WI 549561679580070
- Benjamin Ernst, M.D.Appleton, WI 549141518162247
- Anthony Parendo, M.D.Appleton, WI 549141043690233
- Michael Possin, M.D.Appleton, WI 549141811253289
- Sunday Olatunji, M.D.Eau Claire, WI 547031316131956
- Wayne Wu, MDEau Claire, WI 547011720015621
Common questions
What is Charles Hejny, MD's NPI number?
Charles Hejny, MD's National Provider Identifier (NPI) is 1922013671, issued on Jul 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charles Hejny, MD located?
The NPPES record lists a practice address at 200 Theda Clark Plaza, Neenah, WI, 54956. Phone: (920) 751-8666. Providers update this record themselves, so call before visiting.
How can I verify Charles Hejny, MD's license?
NPPES lists Wisconsin license number 44243020, 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 Charles Hejny, MD prescribe under Medicare Part D?
In 2024, Charles Hejny, MD had 115 Medicare Part D claims for 49 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. 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.