NPPES file of Aug 9, 2026

Jessica Folk, M.D.

Emergency Medicine Physician · Chicago, IL

Jessica Folk, M.D. is an emergency medicine physician with a practice address in Chicago, Illinois, and NPI 1790041101, issued on Apr 10, 2012. Check the license (Illinois 036-139489, 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
1790041101
Name
Jessica Folk
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
036-139489 IL
036-139489 MI
Self-reported in NPPES; status is on the state search
Practice location
1901 W Harrison St, Chicago, IL 60612
Phone
(312) 864-0394
Enumerated
Apr 10, 2012
Record last updated
Apr 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160314000918); accepts Medicare assignment
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 1901 W Harrison St

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

  1. Elias Abate, M.D.Internal Medicine Physician1336712199
  2. Ayesha Abbasi, MDInternal Medicine Physician1376216705
  3. Milagros Abellera, APNNurse Practitioner1528076239
  4. Annette Abraham, MDInfectious Disease Physician1083195093
  5. Fidel Abrego, MDObstetrics & Gynecology Physician1245351824
  6. Bryan Acevedo, MDInternal Medicine Physician1598459612

Verify Jessica Folk 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 036-139489
    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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69% fewer Medicare Part D claims than the average emergency medicine physician in 2024

71 Medicare Part D claims for 36 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Jessica Folk71
  2. Specialty average226

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 2 group practices

  1. Cook CountyChicago, IL
  2. Endeavor Health Medical GroupEvanston, IL

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

Jessica Folk among 3,291 emergency medicine physician records in Illinois

Jessica Folk, M.D. is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 53% of them.

  • NPI issued2012 · 53% of these records are older, 44% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2012 · median 2012 among the 1,867 with a school on file
  • Record last updated2021 · 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 207P00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,310 emergency medicine physician records list a practice address in Chicago

They are 1,310 of the 63,379 NPPES records with a practice address in Chicago, and 3,291 emergency medicine physician records in Illinois.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Joseph Brawka, M.D.Chicago, IL 606121174599112
  2. Christopher Caudill, MDChicago, IL 606121013993104
  3. Galeta Clayton, M.D.Chicago, IL 606121588630743
  4. Jennifer Fleming, M.D.Chicago, IL 606121912973975
  5. Jeffrey Grassle, M.D.Chicago, IL 606121205802147
  6. Marilyn Hallock, M.D.Chicago, IL 606121336110691
  7. Mumtaz Husain, M.D.Chicago, IL 606121891761953
  8. Paula Oldeg, M.D.Chicago, IL 606121568438687

Common questions

What is Jessica Folk, M.D.'s NPI number?

Jessica Folk, M.D.'s National Provider Identifier (NPI) is 1790041101, issued on Apr 10, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Folk, M.D. located?

The NPPES record lists a practice address at 1901 W Harrison St, Chicago, IL, 60612. Phone: (312) 864-0394. Providers update this record themselves, so call before visiting.

How can I verify Jessica Folk, M.D.'s license?

NPPES lists Illinois license number 036-139489, 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 Jessica Folk, M.D. prescribe under Medicare Part D?

In 2024, Jessica Folk, M.D. had 71 Medicare Part D claims for 36 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.