Registry data as of Aug 27, 2026

Marianne Feitl, MD

Ophthalmology Physician · Merrionette Park, IL

Marianne Feitl, MD is an ophthalmology physician with a practice address in Merrionette Park, Illinois, and NPI 1609837376, issued on Mar 31, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1609837376
Name
Marianne Feitl
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
Practice location
11600 S Kedzie Ave, Merrionette Park, IL 60803
Phone
(708) 388-4400
Enumerated
Mar 31, 2006
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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Also registered at 11600 S Kedzie Ave

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

  1. Chris Albanis, MDOphthalmology Physician1720040017
  2. Robert Bonk, D.O.Family Medicine Physician1609894690
  3. Michael Debre, MDInternal Medicine Physician1215044508
  4. Brianna Denton, RD, LDNRegistered Dietitian1639892144
  5. Erin Drever, MDEndocrinology, Diabetes & Metabolism Physician1750631727
  6. Lauren Ellis, FNPFamily Nurse Practitioner1558996090

Verify Marianne Feitl in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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 Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

60% more Medicare Part D claims than the average ophthalmology physician in 2024

2,383 Medicare Part D claims for 668 beneficiaries, against an average of 1,490 among the 16,109 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.

  1. Marianne Feitl2,383
  2. Specialty average1,490

Most prescribed

  1. Latanoprost772 claims
  2. Dorzolamide-Timolol396 claims
  3. Brimonidine Tartrate391 claims
  4. Timolol Maleate195 claims
  5. Dorzolamide Hcl173 claims
  6. Rhopressa94 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.

5 ophthalmology physician records list a Merrionette Park practice address

They are 5 of the 106 NPPES records with a Merrionette Park practice address, and 891 ophthalmology physician records in Illinois.

Other ophthalmology physician records in Illinois

  1. Walid Abdallah, MDRockford, IL1871912717
  2. Robert Abishek, MDChicago, IL1760314678
  3. Ashley Abraham, M.D.Springfield, IL1285900423
  4. Evelyn Ackermann, MDElgin, IL1053308676
  5. Kathleen Ackman Blake, MDHinsdale, IL1497734966
  6. Kaela Acuff, MDChicago, IL1609678549
  7. Nolan AdamsMaywood, IL1124581780
  8. Roger Adler, MDPekin, IL1063465110
  9. Armin Afshar, M.D.Chicago, IL1063742161
  10. Afzal Ahmad, M.D.Calumet City, IL1629061684

Common questions

What is Marianne Feitl, MD's NPI number?

Marianne Feitl, MD's National Provider Identifier (NPI) is 1609837376, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marianne Feitl, MD located?

The NPPES record lists a practice address at 11600 S Kedzie Ave, Merrionette Park, IL, 60803. Phone: (708) 388-4400. Providers update this record themselves, so call before visiting.

How can I verify Marianne Feitl, MD's license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Marianne Feitl, MD prescribe under Medicare Part D?

In 2024, Marianne Feitl, MD had 2,383 Medicare Part D claims for 668 beneficiaries; the average among ophthalmology physician prescribers was 1,490. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.