NPPES file of Aug 9, 2026

Theodore Tae-Shik Park, M.D.

Family Medicine Physician · Chicago, IL

Theodore Tae-Shik Park, M.D. is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1194947648, issued on May 3, 2007. Check the license 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
1194947648
Name
Theodore Tae-Shik Park
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
01065753A IN
35.092012 OH
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 3, 2007
Record last updated
Feb 23, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(872) 588-3561
Medicare enrollment
Enrolled (PECOS I20130325000479); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2004
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 family medicine physician records → All 6,215 in Illinois → Look up another NPI →

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 Theodore Tae-Shik Park in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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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60% fewer Medicare Part D claims than the average family medicine physician in 2024

1,411 Medicare Part D claims for 75 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 27 claims were for opioids.

  1. Theodore Park1,411
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium136 claims
  2. Metformin Hcl68 claims
  3. Gabapentin61 claims
  4. Lisinopril56 claims
  5. Jardiance48 claims
  6. Sertraline Hcl45 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).

Theodore Tae-Shik Park among 6,215 family medicine physician records in Illinois

Theodore Tae-Shik Park, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 41% of them.

  • NPI issued2007 · 41% of these records are older, 50% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2004 · median 2006 among the 3,714 with a school on file
  • Record last updated2017 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,593 family medicine physician records list a practice address in Chicago

They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois.

All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Gabrielle Barber, M.D.Chicago, IL 606231770520959
  2. David Buchanan, M.D.Chicago, IL 606231689611865
  3. Wayne Detmer, M.D.Chicago, IL 606231972558880
  4. Jose Deurrutia, M.D.Chicago, IL 606231831136647
  5. Howard Ehrman, M.D., M.P.H.Chicago, IL 606231770540585
  6. Kara Greeley, M.D.Chicago, IL 606231013954296
  7. Sandra Hoogland, M.D.Chicago, IL 606231578518320
  8. John Houchins, MDChicago, IL 606231740211911

Common questions

What is Theodore Tae-Shik Park, M.D.'s NPI number?

Theodore Tae-Shik Park, M.D.'s National Provider Identifier (NPI) is 1194947648, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Theodore Tae-Shik Park, M.D. 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 Theodore Tae-Shik Park, M.D.'s license?

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 Theodore Tae-Shik Park, M.D. prescribe under Medicare Part D?

In 2024, Theodore Tae-Shik Park, M.D. had 1,411 Medicare Part D claims for 75 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.