NPPES file of Aug 9, 2026

Adrienne B. Mejia, MD MPH

Anesthesiology Physician · McHenry, IL

Adrienne B. Mejia, MD MPH is an anesthesiology physician with a practice address in McHenry, Illinois, and NPI 1043701485, issued on May 22, 2018. Check the license (Illinois 036160694, 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
1043701485
Name
Adrienne B. Mejia
Credential
MD MPH
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
036160694 IL
Self-reported in NPPES; status is on the state search
Practice location
4201 W Medical Center Dr, McHenry, IL 60050
Phone
(815) 344-5000
Enumerated
May 22, 2018
Record last updated
Mar 3, 2026
Fax
(815) 344-3347
Medicare enrollment
Enrolled (PECOS I20230815003935); 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 4201 W Medical Center Dr

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

  1. Elias AbousaadInternal Medicine Physician1952751877
  2. Kimberly Ackert, PA-CPhysician Assistant1538172739
  3. Van AliEmergency Medicine Physician1457674582
  4. Wasfia Alikhan, M.D.Diagnostic Radiology Physician1902291834
  5. Yasser Almadani, MDStudent in an Organized Health Care Education/Training Program1881497634
  6. Altaf Aman, M.D.Hospitalist Physician1942381132

Verify Adrienne B. Mejia 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 036160694
    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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89% fewer Medicare Part D claims than the average anesthesiology physician in 2024

44 Medicare Part D claims for 22 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Adrienne Mejia44
  2. Specialty average402

Most prescribed

  1. Tizanidine Hcl12 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.

Industry payments in 2024: $353.96

5 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Adrienne Mejia$353.96
  2. Specialty average$669.59

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Northwestern Medical Faculty FoundationMcHenry, IL
  2. The Pain Center OF Illinois Inc.Chicago, IL

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

Adrienne B. Mejia among 2,575 anesthesiology physician records in Illinois

Adrienne B. Mejia, MD MPH is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 75% of them.

  • NPI issued2018 · 75% of these records are older, 22% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2018 · median 2006 among the 1,608 with a school on file
  • Record last updated2026 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 anesthesiology physician records list a practice address in McHenry

They are 14 of the 1,852 NPPES records with a practice address in McHenry, and 2,575 anesthesiology physician records in Illinois.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Shawn Falitz, M.D.McHenry, IL 600501043576341
  2. Farhan Farooqui, MDMcHenry, IL 600501134430465
  3. John Freely, M.D.McHenry, IL 600501770739161
  4. Jennifer Garcia Wojtczak, M.D.McHenry, IL 600501285952309
  5. Bradley Hewlett, M.D.McHenry, IL 600501255564142
  6. Jens Kellermeier, M.D.McHenry, IL 600501528172772
  7. James Kim, M.D.McHenry, IL 600501497839310
  8. David Lopata, M.D.McHenry, IL 600501144425224

Common questions

What is Adrienne B. Mejia, MD MPH's NPI number?

Adrienne B. Mejia, MD MPH's National Provider Identifier (NPI) is 1043701485, issued on May 22, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Adrienne B. Mejia, MD MPH located?

The NPPES record lists a practice address at 4201 W Medical Center Dr, McHenry, IL, 60050. Phone: (815) 344-5000. Providers update this record themselves, so call before visiting.

How can I verify Adrienne B. Mejia, MD MPH's license?

NPPES lists Illinois license number 036160694, 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 Adrienne B. Mejia, MD MPH prescribe under Medicare Part D?

In 2024, Adrienne B. Mejia, MD MPH had 44 Medicare Part D claims for 22 beneficiaries; the average among anesthesiology physician prescribers was 402. 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.