NPPES file of Aug 9, 2026

Matthew Richard Mills, M.D.

Specialist · Chicago, IL

Matthew Richard Mills, M.D. is a specialist with a practice address in Chicago, Illinois, and NPI 1437295201, issued on Jan 29, 2007. Check the license with the Illinois board that licenses this profession; 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
1437295201
Name
Matthew Richard Mills
Credential
M.D.
Primary taxonomy
Specialist 174400000X
Practice location
625 N Michigan Ave, Chicago, IL 60611
Phone
(773) 938-1595
Enumerated
Jan 29, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(312) 277-2530
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest specialist records → All 1,154 in Illinois → Look up another NPI →

Also registered at 625 N Michigan Ave

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

  1. Penelope Asay, PH.D.Counseling Psychologist1790933026
  2. Katherine Billingham, PH.DHealth Psychologist1447474473
  3. Deborah Cano, M.D.Psychiatry Physician1801094396
  4. Rebecca Christophersen, APRNNurse Practitioner1376683383
  5. Samantha CohenAdvanced Practice Midwife1154723484
  6. Melissa Everson, LCSWClinical Social Worker1598047797

Verify Matthew Richard Mills in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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
Find the Illinois license search

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96% fewer Medicare Part D claims than the average specialist in 2024

56 Medicare Part D claims, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Matthew Mills56
  2. Specialty average1,380

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.

Matthew Richard Mills among 1,154 specialist records in Illinois

Matthew Richard Mills, M.D. is one of 1,154 specialist records with a practice address in Illinois. 19% 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 42% of them.

  • NPI issued2007 · 42% of these records are older, 37% newer
  • In a Medicare fileYes · 19% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2007 · 84% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Illinois

There are 1,154 specialist records in Illinois.

All 1,154 in Illinois → Every provider in Chicago → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Christina Bonner, M.D.Chicago, IL 606111043238231
  2. Catherine Clinton, M.D.Chicago, IL 606111346268422
  3. Kelly DineenChicago, IL 606111871592543
  4. Francisco Gutierrez, MDChicago, IL 606111962440727
  5. Michael Halpern, M.D.Chicago, IL 606111447203526
  6. Edward Hitchcock, OTR.LChicago, IL 606111417013293
  7. Robert Kelsey, M.D.Chicago, IL 606111043238223
  8. Michael Levinson, M.D.Chicago, IL 606111093808131

Common questions

What is Matthew Richard Mills, M.D.'s NPI number?

Matthew Richard Mills, M.D.'s National Provider Identifier (NPI) is 1437295201, issued on Jan 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Richard Mills, M.D. located?

The NPPES record lists a practice address at 625 N Michigan Ave, Chicago, IL, 60611. Phone: (773) 938-1595. Providers update this record themselves, so call before visiting.

How can I verify Matthew Richard Mills, M.D.'s license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Matthew Richard Mills, M.D. prescribe under Medicare Part D?

In 2024, Matthew Richard Mills, M.D. had 56 Medicare Part D claims; the average among specialist prescribers was 1,380. 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.