Charlotte Haeran Koo, MD
Hospitalist Physician · Glenview, IL
Charlotte Haeran Koo, MD is a hospitalist physician with a practice address in Glenview, Illinois, and NPI 1093158297, issued on Apr 8, 2013. Check the license (Illinois 036139709, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Charlotte Haeran Koo
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 036139709 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Pfingsten RD Ste 3001A, Glenview, IL 60026
- Phone
- (847) 657-5840
- Enumerated
- Apr 8, 2013
- Record last updated
- Jun 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (847) 657-5732
- Medicare enrollment
- Enrolled (PECOS I20211220001658); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →
Also registered at 2100 Pfingsten RD Ste 3001A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hafsa Baig, MDHospitalist Physician1366608960
- Heather Bartusek, PA-CPhysician Assistant1659936763
- Karen Chiu, MDHospitalist Physician1003099953
- Mihir Desai, MDHospitalist Physician1275987984
- Ibrahima Diop, MDHospitalist Physician1609032127
- Neelima Divakaran, MDHospitalist Physician1528346517
Verify Charlotte Haeran Koo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036139709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average hospitalist physician in 2024
449 Medicare Part D claims for 193 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Cefdinir42 claims
- Doxycycline Hyclate36 claims
- Amoxicillin-Clavulanate Potass35 claims
- Methylprednisolone35 claims
- Amlodipine Besylate23 claims
- Pantoprazole Sodium20 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 2 group practices
- Banner - University Hospital Based Physicians LLCPhoenix, AZ
- Banner Hospital Based Physicians Arizona LLCGilbert, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charlotte Haeran Koo among 1,535 hospitalist physician records in Illinois
Charlotte Haeran Koo, MD is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 43% of them.
- NPI issued2013 · 43% of these records are older, 52% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2013 · median 2013 among the 1,339 with a school on file
- Record last updated2019 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 hospitalist physician records list a practice address in Glenview
They are 29 of the 2,545 NPPES records with a practice address in Glenview, and 1,535 hospitalist physician records in Illinois.
All 1,535 in Illinois → Every provider in Glenview → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Hafsa Baig, MDGlenview, IL 600261366608960
- Karen Chiu, MDGlenview, IL 600261003099953
- Ibrahima Diop, MDGlenview, IL 600261609032127
- Neelima Divakaran, MDGlenview, IL 600261528346517
- Daniel Go, MDGlenview, IL 600261346483013
- Joel Green, MDGlenview, IL 600261053544858
- Melita Igbokwe, MDGlenview, IL 600261790004620
- Sergio Luna, MDGlenview, IL 600261386961662
Common questions
What is Charlotte Haeran Koo, MD's NPI number?
Charlotte Haeran Koo, MD's National Provider Identifier (NPI) is 1093158297, issued on Apr 8, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Charlotte Haeran Koo, MD located?
The NPPES record lists a practice address at 2100 Pfingsten RD Ste 3001A, Glenview, IL, 60026. Phone: (847) 657-5840. Providers update this record themselves, so call before visiting.
How can I verify Charlotte Haeran Koo, MD's license?
NPPES lists Illinois license number 036139709, 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 Charlotte Haeran Koo, MD prescribe under Medicare Part D?
In 2024, Charlotte Haeran Koo, MD had 449 Medicare Part D claims for 193 beneficiaries; the average among hospitalist physician prescribers was 521. 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.