NPPES file of Aug 9, 2026

Christine J. Schaeffer, MD

Internal Medicine Physician · Chicago, IL

Christine J. Schaeffer, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1124055835, issued on Jun 27, 2006. Check the license (Illinois 036101795, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124055835
Name
Christine J. Schaeffer
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036101795 IL
Self-reported in NPPES; status is on the state search
Practice location
676 N Saint Clair St Ste 2030, Chicago, IL 60611
Phone
(773) 562-3642
Enumerated
Jun 27, 2006
Record last updated
Jun 19, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(312) 926-2200
Medicare enrollment
Enrolled (PECOS I20060828000545); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 1997
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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Also registered at 676 N Saint Clair St Ste 2030

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

  1. Elizabeth Ambrose, FNP-BCNurse Practitioner1881454569
  2. Sarah Bendix, LCSWClinical Social Worker1366858805
  3. Meredith Everhart, LCSWClinical Social Worker1477196962
  4. Aidan Ex-Willey, PA-CPhysician Assistant1114688918
  5. Sharon Feehan, APRN, CNPNurse Practitioner1871670596
  6. Trevor Hedberg, PA-CPhysician Assistant1780217877

Verify Christine J. Schaeffer 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 036101795
    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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84% fewer Medicare Part D claims than the average internal medicine physician in 2024

510 Medicare Part D claims for 57 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Christine Schaeffer510
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium26 claims
  2. Carvedilol25 claims
  3. Metoprolol Succinate23 claims
  4. Amlodipine Besylate20 claims
  5. Eliquis20 claims
  6. Gabapentin20 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.

The MIPS final score for 2023 (Medicare payment program): 94.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Northwestern Medical Faculty FoundationChicago, IL

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

Christine J. Schaeffer among 7,238 internal medicine physician records in Illinois

Christine J. Schaeffer, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 61% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated1997 · median 2003 among the 3,580 with a school on file
  • Record last updated2019 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kenneth Arbetter, MDChicago, IL 606111336132851
  2. Steven Gallo, MDChicago, IL 606111548253024
  3. Arnold Grauer, MDChicago, IL 606111619960184
  4. James Hall, MDChicago, IL 606111649263153
  5. Frances Langdon, MDChicago, IL 606111063405546
  6. Michael Lee, MDChicago, IL 606111942293451
  7. Hazel Manzano, MDChicago, IL 606111801889316
  8. Chadwick Milstead, MDChicago, IL 606111740273259

Common questions

What is Christine J. Schaeffer, MD's NPI number?

Christine J. Schaeffer, MD's National Provider Identifier (NPI) is 1124055835, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christine J. Schaeffer, MD located?

The NPPES record lists a practice address at 676 N Saint Clair St Ste 2030, Chicago, IL, 60611. Phone: (773) 562-3642. Providers update this record themselves, so call before visiting.

How can I verify Christine J. Schaeffer, MD's license?

NPPES lists Illinois license number 036101795, 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 Christine J. Schaeffer, MD prescribe under Medicare Part D?

In 2024, Christine J. Schaeffer, MD had 510 Medicare Part D claims for 57 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Christine J. Schaeffer, MD's MIPS final score?

The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.