NPPES file of Aug 9, 2026

Robert W. Mecker, M.D.

Emergency Medicine Physician · Belleville, IL

Robert W. Mecker, M.D. is an emergency medicine physician with a practice address in Belleville, Illinois, and NPI 1316074727, issued on Feb 27, 2007. Check the license (Illinois 036113285, 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
1316074727
Name
Robert W. Mecker
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
036113285 IL
2012003469 MO
Self-reported in NPPES; status is on the state search
Practice location
4500 Memorial Dr, Belleville, IL 62226
Phone
(618) 257-5879
Enumerated
Feb 27, 2007
Record last updated
Oct 18, 2024
Fax
(618) 257-6740
Medicare enrollment
Enrolled (PECOS I20040318001297); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 1982
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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8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →

Also registered at 4500 Memorial Dr

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

  1. Lubasi Akombelwa, NPNurse Practitioner1811489479
  2. Mohammed Al Hamati, MDHospitalist Physician1851779920
  3. Yahia Al Turk, MDGastroenterology Physician1487114682
  4. Md Ali, MDHospitalist Physician1376163261
  5. Shadi Altwal, M.D.Hospitalist Physician1417992520
  6. Aloka Amarakone, MDNeurology Physician1407051329

Verify Robert W. Mecker 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 036113285    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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63% more Medicare Part D claims than the average emergency medicine physician in 2024

368 Medicare Part D claims for 228 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 16 claims were for opioids.

  1. Robert Mecker368
  2. Specialty average226

Most prescribed

  1. Prednisone38 claims
  2. Ondansetron Hcl30 claims
  3. Azithromycin22 claims
  4. Ondansetron Odt19 claims
  5. Cyclobenzaprine Hcl18 claims
  6. Cefdinir17 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.

8 hospitals and group practices

  1. Jersey Community HospitalJerseyville, IL · Acute Care Hospitals3 of 5 stars
  2. Camden Emergency Group LLCOsage Beach, MO
  3. Emergency Services Midwest SCBelleville, IL
  4. Midwest Emergency Anderson Health IncMaryville, IL
  5. Midwest Emergency Sparta, Inc.Sparta, IL
  6. Southeastern Emergency Physicians OF Memphis LLCFarmington, MO
  7. Thomas H Boyd Memorial HospitalCarrollton, IL · Critical Access Hospitals
  8. Touchette Regional Hospital IncCahokia Heights, IL · Acute Care Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Robert W. Mecker among 3,291 emergency medicine physician records in Illinois

Robert W. Mecker, M.D. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% 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 32% of them.

  • NPI issued2007 · 32% of these records are older, 61% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1982 · median 2012 among the 1,867 with a school on file
  • Record last updated2024 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 emergency medicine physician records list a practice address in Belleville

They are 17 of the 1,404 NPPES records with a practice address in Belleville, and 3,291 emergency medicine physician records in Illinois.

All 3,291 in Illinois → Every provider in Belleville → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Karen Bertels, MDBelleville, IL 622261548657737
  2. Thomas Byrne, M.D.Belleville, IL 622261629164611
  3. Lundy Colvert, M.D.Belleville, IL 622261225179476
  4. Djiby Diop, M.D.Belleville, IL 622261164562906
  5. Daniel Kim, MDBelleville, IL 622261053801696
  6. Kurt Kloss, M.D.Belleville, IL 622261508907247
  7. Christine Lin, D.O.Belleville, IL 622261336580760
  8. Neil McClymont, D.O.Belleville, IL 622261033248208

Common questions

What is Robert W. Mecker, M.D.'s NPI number?

Robert W. Mecker, M.D.'s National Provider Identifier (NPI) is 1316074727, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Robert W. Mecker, M.D. located?

The NPPES record lists a practice address at 4500 Memorial Dr, Belleville, IL, 62226. Phone: (618) 257-5879. Providers update this record themselves, so call before visiting.

How can I verify Robert W. Mecker, M.D.'s license?

NPPES lists Illinois license number 036113285, 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 Robert W. Mecker, M.D. prescribe under Medicare Part D?

In 2024, Robert W. Mecker, M.D. had 368 Medicare Part D claims for 228 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.