NPPES file of Aug 9, 2026

Joshua Baker, D.O.

Clinical Genetics (M.D.) Physician · Chicago, IL

Joshua Baker, D.O. is a clinical genetics (m.d.) physician with a practice address in Chicago, Illinois, and NPI 1134534597, issued on Jun 24, 2014. Check the license (Illinois 036.151556, 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
1134534597
Name
Joshua Baker
Credential
D.O.
Primary taxonomy
Clinical Genetics (M.D.) Physician 207SG0201X
License number
036.151556 IL
Self-reported in NPPES; status is on the state search
Practice location
225 E Chicago Ave, Chicago, IL 60611
Phone
(312) 227-4000
Enumerated
Jun 24, 2014
Record last updated
Jun 25, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20201222000348); accepts Medicare assignment
Medical or professional school
Des Moines University Of Osteopathic Medicine And Health Sciences, 2014
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 225 E Chicago Ave

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

  1. Jasmene Abernathy, MDStudent in an Organized Health Care Education/Training Program1881454957
  2. Tamkeen Abreu, PHARMD, BCPSPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1366888653
  3. Matthew Abts, MDPediatric Pulmonology Physician1588989750
  4. Samuel AccordinoStudent in an Organized Health Care Education/Training Program1194525204
  5. Carly Adajian, DDSDentist1184373029
  6. Julie Adams, RDRegistered Dietitian1417569153

Verify Joshua Baker 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 036.151556
    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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12% fewer Medicare Part D claims than the average clinical genetics (m.d.) physician in 2024

52 Medicare Part D claims, against an average of 59 among the 193 providers of this specialty who prescribed in Part D.

  1. Joshua Baker52
  2. Specialty average59

Most prescribed

  1. Betaine Anhydrous21 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: $99,398.15

89 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 306 providers of this specialty with any payment received $12,333.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Joshua Baker$99,398
  2. Specialty average$12,333

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

Bills Medicare through one group practice

  1. Lurie Children's Medical Group Inc.Chicago, IL

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

Joshua Baker among 24 clinical genetics (m.d.) physician records in Illinois

Joshua Baker, D.O. is one of 24 clinical genetics (m.d.) 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 2014, is newer than 79% of them.

  • NPI issued2014 · 79% of these records are older, 17% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2014 · median 2001 among the 12 with a school on file
  • Record last updated2020 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207SG0201X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Genetics (M.D.) Physician providers in Illinois

There are 24 clinical genetics (m.d.) physician records in Illinois.

The 8 clinical genetics (m.d.) physician records with the nearest ZIP codes

  1. Brandon Chalazan, MD, PHDChicago, IL 606111770364275
  2. Joel Charrow, MDChicago, IL 606111962466375
  3. Mindy Li, M.D.Chicago, IL 606111922317759
  4. Carlos Prada, M.D.Chicago, IL 606111386851335
  5. Juan Ramos, DOChicago, IL 606111164058129
  6. Miguel Barajas, MDChicago, IL 606121730682576
  7. Gifty Bhat, M.DChicago, IL 606121972883254
  8. Susan Echiverri, M.D.Chicago, IL 606121083639736

Common questions

What is Joshua Baker, D.O.'s NPI number?

Joshua Baker, D.O.'s National Provider Identifier (NPI) is 1134534597, issued on Jun 24, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Joshua Baker, D.O. located?

The NPPES record lists a practice address at 225 E Chicago Ave, Chicago, IL, 60611. Phone: (312) 227-4000. Providers update this record themselves, so call before visiting.

How can I verify Joshua Baker, D.O.'s license?

NPPES lists Illinois license number 036.151556, 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 Joshua Baker, D.O. prescribe under Medicare Part D?

In 2024, Joshua Baker, D.O. had 52 Medicare Part D claims; the average among clinical genetics (m.d.) physician prescribers was 59. 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.

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.