NPPES file of Aug 9, 2026

James Rex Miller, M.D

Geriatric Medicine (Internal Medicine) Physician · Chicago, IL

James Rex Miller, M.D is a geriatric medicine (internal medicine) physician with a practice address in Chicago, Illinois, and NPI 1861503468, issued on Aug 31, 2006. Check the license (Illinois 036050110, 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
1861503468
Name
James Rex Miller
Credential
M.D
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License numbers
036050110 IL
01035142A IN
Self-reported in NPPES; status is on the state search
Practice location
3319 N Elston Ave, Chicago, IL 60618
Phone
(773) 751-7200
Enumerated
Aug 31, 2006
Record last updated
May 8, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(773) 583-4295
Medicare enrollment
Enrolled (PECOS I20080906000163); may accept Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 1973
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 geriatric medicine (internal medicine) physician records → All 179 in Illinois → Look up another NPI →

Also registered at 3319 N Elston Ave

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

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  2. Asiyah AliBehavior Technician1780415190
  3. Jocelyn AlvaradoBehavior Technician1043992209
  4. Brian Bacardi, DPMPrimary Podiatric Medicine Podiatrist1073674081
  5. Madison Baginski, OTD, OTR/LOccupational Therapist1710810916
  6. Pamela Bejarano, MSWSocial Worker1588413843

Verify James Rex Miller 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 036050110    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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11% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

4,731 Medicare Part D claims for 140 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 213 claims were for opioids.

  1. James Miller4,731
  2. Specialty average4,246

Most prescribed

  1. Amlodipine Besylate161 claims
  2. Atorvastatin Calcium161 claims
  3. Gabapentin148 claims
  4. Albuterol Sulfate Hfa138 claims
  5. Diclofenac Sodium128 claims
  6. Allopurinol118 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.

Bills Medicare through one group practice

  1. Perspective Behavioral And Pain Solutions IncDes Plaines, IL

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

James Rex Miller among 179 geriatric medicine (internal medicine) physician records in Illinois

James Rex Miller, M.D is one of 179 geriatric medicine (internal medicine) 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 40% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated1973 · median 1997 among the 76 with a school on file
  • Record last updated2013 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Illinois

There are 179 geriatric medicine (internal medicine) physician records in Illinois.

All 179 in Illinois → Every provider in Chicago → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Amelia Conte-Russian, M.D.Chicago, IL 606181851338792
  2. James Fenoglio, MDChicago, IL 606181063690469
  3. Glenn Harrison, M.D.Chicago, IL 606181316076946
  4. Nandana Jasti, M.D.Chicago, IL 606181770773871
  5. Banio Koroma, MDChicago, IL 606181962443739
  6. Ewa Nowak, M.D.Chicago, IL 606181114113271
  7. Geraldine LunaChicago, IL 606171275735706
  8. Robert Alter, M.D.Chicago, IL 606161821064585

Common questions

What is James Rex Miller, M.D's NPI number?

James Rex Miller, M.D's National Provider Identifier (NPI) is 1861503468, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Rex Miller, M.D located?

The NPPES record lists a practice address at 3319 N Elston Ave, Chicago, IL, 60618. Phone: (773) 751-7200. Providers update this record themselves, so call before visiting.

How can I verify James Rex Miller, M.D's license?

NPPES lists Illinois license number 036050110, 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 James Rex Miller, M.D prescribe under Medicare Part D?

In 2024, James Rex Miller, M.D had 4,731 Medicare Part D claims for 140 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.