NPPES file of Aug 9, 2026

Maureen Morgan O'Connor, MD

Endocrinology, Diabetes & Metabolism Physician · Bourbonnais, IL

Maureen Morgan O'Connor, MD is an endocrinology, diabetes & metabolism physician with a practice address in Bourbonnais, Illinois, and NPI 1558460337, issued on Sep 21, 2006. Check the license (Illinois 036097969, 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
1558460337
Name
Maureen Morgan O'Connor
Credential
MD
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
036097969 IL
Self-reported in NPPES; status is on the state search
Practice location
338 Larry Power RD, Bourbonnais, IL 60914
Phone
(815) 936-8909
Enumerated
Sep 21, 2006
Record last updated
Jan 22, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(815) 928-5075
Medicare enrollment
Enrolled (PECOS I20101215000667); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 endocrinology, diabetes & metabolism physician records → All 436 in Illinois → Look up another NPI →

Also registered at 338 Larry Power RD

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

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  3. Clementina Asamoah, MDObstetrics & Gynecology Physician1043830698
  4. Leanne Bishop, APNAdvanced Practice Midwife1578811147
  5. Grazelda Kwakye-Ackah, MDObstetrics & Gynecology Physician1972949584
  6. Saroja Yalamanchili, MDObstetrics & Gynecology Physician1124077326

Verify Maureen Morgan O'Connor 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 036097969    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

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4% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

2,744 Medicare Part D claims for 263 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Maureen Morgan O'Connor2,744
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium667 claims
  2. Atorvastatin Calcium136 claims
  3. Synthroid113 claims
  4. Metformin Hcl103 claims
  5. Glimepiride101 claims
  6. Lantus Solostar89 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: $126.81

7 payments; by number, the most common kind was food and beverage; the largest payer was Radius Health, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maureen Morgan O'Connor$126.81
  2. Specialty average$5,742.15

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

Maureen Morgan O'Connor among 436 endocrinology, diabetes & metabolism physician records in Illinois

Maureen Morgan O'Connor, MD is one of 436 endocrinology, diabetes & metabolism physician records with a practice address in Illinois. 85% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 62% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1990 · median 2006 among the 295 with a school on file
  • Record last updated2008 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in Illinois

There are 436 endocrinology, diabetes & metabolism physician records in Illinois.

All 436 in Illinois → Every provider in Bourbonnais → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Jabiz Behzadpour, DOBourbonnais, IL 609141407381171
  2. Rachel Shell, MDBourbonnais, IL 609141942339932
  3. Ashraf UddinBourbonnais, IL 609141699262782
  4. Sara Elizabeth Yap, MDBourbonnais, IL 609141225514334
  5. Abdallah Altarshan, MDEvergreen Park, IL 608051174582811
  6. Ammar Bayrakdar, MDEvergreen Park, IL 608051841243334
  7. Jung Jun, MD SCEvergreen Park, IL 608051447291422
  8. Angela Pauline Calimag, MDMerrionette Park, IL 608031225597206

Common questions

What is Maureen Morgan O'Connor, MD's NPI number?

Maureen Morgan O'Connor, MD's National Provider Identifier (NPI) is 1558460337, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Maureen Morgan O'Connor, MD located?

The NPPES record lists a practice address at 338 Larry Power RD, Bourbonnais, IL, 60914. Phone: (815) 936-8909. Providers update this record themselves, so call before visiting.

How can I verify Maureen Morgan O'Connor, MD's license?

NPPES lists Illinois license number 036097969, 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 Maureen Morgan O'Connor, MD prescribe under Medicare Part D?

In 2024, Maureen Morgan O'Connor, MD had 2,744 Medicare Part D claims for 263 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.