NPPES file of Aug 9, 2026

Ying Chun Mei

Physician Assistant · Chicago, IL

Ying Chun Mei is a physician assistant with a practice address in Chicago, Illinois, and NPI 1407412745, issued on May 13, 2019. Check the license (Illinois 085007060, as entered in NPPES) 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
1407412745
Name
Ying Chun Mei
Primary taxonomy
Physician Assistant 363A00000X
License number
085007060 IL
Self-reported in NPPES; status is on the state search
Practice location
3860 W Ogden Ave, Chicago, IL 60623
Phone
(872) 588-3000
Enumerated
May 13, 2019
Record last updated
Mar 7, 2023
Medicare enrollment
Enrolled (PECOS I20210319001721); 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 3860 W Ogden Ave

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

  1. Jeneson Abraham, P.A.Medical Physician Assistant1013975218
  2. Luisa AdameCounselor1255968160
  3. Grace Ahn, DDSDentist1518166743
  4. Similolu Akintorin, MDFamily Medicine Physician1033790407
  5. Edward Akinyemi, MDFamily Medicine Physician1609525104
  6. Lars Armainsson, MDInternal Medicine Physician1336259514

Verify Ying Chun Mei in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 085007060
    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
Find 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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59% fewer Medicare Part D claims than the average physician assistant in 2024

338 Medicare Part D claims for 57 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Ying Chun Mei338
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium33 claims
  2. Metformin Hcl16 claims
  3. Amlodipine Besylate14 claims
  4. Fluoxetine Hcl14 claims
  5. Omeprazole12 claims
  6. Lantus Solostar11 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. Lawndale Christian Health CenterChicago, IL

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

Ying Chun Mei among 4,926 physician assistant records in Illinois

Ying Chun Mei is one of 4,926 physician assistant records with a practice address in Illinois. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 53% of them.

  • NPI issued2019 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2018 · median 2019 among the 3,407 with a school on file
  • Record last updated2023 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,445 physician assistant records list a practice address in Chicago

They are 1,445 of the 63,379 NPPES records with a practice address in Chicago, and 4,926 physician assistant records in Illinois.

The 8 physician assistant records with the nearest ZIP codes

  1. William Bush, PAChicago, IL 606231154574119
  2. Rachel Bykerk, P.A.Chicago, IL 606231295019313
  3. Sarah Diamond, PA-CChicago, IL 606231487922878
  4. Meggan FlinnChicago, IL 606231881603652
  5. William Flores, PAChicago, IL 606231497784003
  6. Hannah Follett, PA-CChicago, IL 606231760637797
  7. Phoebe FoltzChicago, IL 606231497784821
  8. Ana Gomez, PAChicago, IL 606231144473109

Common questions

What is Ying Chun Mei's NPI number?

Ying Chun Mei's National Provider Identifier (NPI) is 1407412745, issued on May 13, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Ying Chun Mei located?

The NPPES record lists a practice address at 3860 W Ogden Ave, Chicago, IL, 60623. Phone: (872) 588-3000. Providers update this record themselves, so call before visiting.

How can I verify Ying Chun Mei's license?

NPPES lists Illinois license number 085007060, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Ying Chun Mei prescribe under Medicare Part D?

In 2024, Ying Chun Mei had 338 Medicare Part D claims for 57 beneficiaries; the average among physician assistant prescribers was 830. 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.