NPPES file of Aug 9, 2026

Maria Cecilia Dahn, M.D.

Child & Adolescent Psychiatry Physician · Oak Park, IL

Maria Cecilia Dahn, M.D. is a child & adolescent psychiatry physician with a practice address in Oak Park, Illinois, and NPI 1942491519, issued on Aug 7, 2007. Check the license (Illinois 036114820, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1942491519
Name
Maria Cecilia Dahn
Credential
M.D.
Primary taxonomy
Child & Adolescent Psychiatry Physician 2084P0804X
License number
036114820 IL
Self-reported in NPPES; status is on the state search
Practice location
1103 Westgate St, Oak Park, IL 60301
Phone
(773) 517-7873
Enumerated
Aug 7, 2007
Record last updated
May 9, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20090420000373); accepts Medicare assignment
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 1103 Westgate St

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

  1. Florence Braum, L.C.S.WClinical Social Worker1205950300
  2. Helen Fleisher, LCSWClinical Social Worker1801821392
  3. Robert O'Connor, PH.D.Clinical Psychologist1134250152
  4. Maureen Oconnor, M.S.W.Clinical Social Worker1447316443
  5. Andrew Shack, PH.D.Clinical Psychologist1659327229

Verify Maria Cecilia Dahn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036114820
    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 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.

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97% fewer Medicare Part D claims than the average child & adolescent psychiatry physician in 2024

17 Medicare Part D claims, against an average of 504 among the 3,545 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Maria Dahn17
  2. Specialty average504

Most prescribed

  1. Mirtazapine12 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.

Maria Cecilia Dahn among 267 child & adolescent psychiatry physician records in Illinois

Maria Cecilia Dahn, M.D. is one of 267 child & adolescent psychiatry physician records with a practice address in Illinois. 61% 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 35% of them.

  • NPI issued2007 · 35% of these records are older, 49% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 36% of these records are
  • Graduated2001 · median 2002 among the 95 with a school on file
  • Record last updated2011 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0804X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatry Physician providers in Illinois

There are 267 child & adolescent psychiatry physician records in Illinois.

The 8 child & adolescent psychiatry physician records with the nearest ZIP codes

  1. Marc Sandrolini, M.D.Oak Park, IL 603011861669632
  2. Kim Dellangela, PHDOak Park, IL 603021871567107
  3. William McMiller, M.D.Oak Park, IL 603021851518617
  4. Walter Pedemonte, M.D.Oak Park, IL 603021669546131
  5. Gary Mart, M.D.River Forest, IL 603051386713196
  6. Susan Scherer, M.D.River Forest, IL 603051710050463
  7. Adrienne Adams, M.D.Evanston, IL 602011578661781
  8. Jonathan Chernaik, M.D.Evanston, IL 602011760758353

Common questions

What is Maria Cecilia Dahn, M.D.'s NPI number?

Maria Cecilia Dahn, M.D.'s National Provider Identifier (NPI) is 1942491519, issued on Aug 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Maria Cecilia Dahn, M.D. located?

The NPPES record lists a practice address at 1103 Westgate St, Oak Park, IL, 60301. Phone: (773) 517-7873. Providers update this record themselves, so call before visiting.

How can I verify Maria Cecilia Dahn, M.D.'s license?

NPPES lists Illinois license number 036114820, as entered by the provider. 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 Maria Cecilia Dahn, M.D. prescribe under Medicare Part D?

In 2024, Maria Cecilia Dahn, M.D. had 17 Medicare Part D claims; the average among child & adolescent psychiatry physician prescribers was 504. 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.