Dr. Chang Woo Park, MD
- Medicare services, 2024
- 201
- Medicare patients, 2024
- 199
- Part D claims, 2024
- 166
- MIPS score, 2024
- 93
- Hospital affiliations
- 2
- Practice address
- 77 N Airlite St, Elgin, IL 60123
- Practice phone
- Call (847) 695-3200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Amita Health St Joseph Hospital - Elgin
Elgin, Illinois
Find Dr. Park's professional email, personal email and mobile number
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Dr. Chang Woo Park is an emergency medicine physician in Elgin, Illinois
Dr. Park practices at Amita Health St Joseph Hospital - Elgin in Elgin, Illinois.
Dr. Park's NPI, 1235757543, was assigned on July 13, 2020. Dr. Park holds Illinois license 036.167509.
- NPI
- 1235757543NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446675128
- NPI enumeration date
- July 13, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 695-3200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chang Woo Park practices at Amita Health St Joseph Hospital - Elgin in Elgin, Illinois
Dr. Park's primary practice is Amita Health St Joseph Hospital - Elgin, at 77 N Airlite St, Elgin, IL 60123 in Kane County. The practice phone is (847) 695-3200.
- Amita Health St Joseph Hospital - Elgin77 N Airlite St, Elgin, IL 60123 · Kane CountyPhone(847) 695-3200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Chang Woo Park is affiliated with 3 sites of care and 1 medical group
Dr. Park's primary practice is Amita Health St Joseph Hospital - Elgin in Elgin, Illinois. Dr. Park is also affiliated with Saint Joseph Hospital. The medical group on file is CEP America. Dmand AI also links Dr. Park to 1 more hospital, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Chang Woo Park's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Park practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Amita Health St Joseph Hospital - Elgin | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chang Woo Park is one of 2,385 emergency medicine physicians in Illinois
Emergency medicine is Dr. Park's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Park's licenses on file in 2 states: Illinois and Ohio.
Specialties and state licenses
- Emergency medicine, IllinoisPrimary
- Ohio license
Emergency medicine physicians near Dr. Park
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Chang Woo Park billed Medicare for 201 services in 2024
CMS data shows 201 Medicare services from Dr. Park across 3 procedure codes in 2024, for 199 Medicare patients. Medicare paid $27,904 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Park compared with the Illinois median for emergency medicine physicians, 2024
- Dr. Park
- Illinois median
- Medicare services
- 201vs 27427% below
- Medicare patients
- 199vs 27327% below
- Part D claims
- 65vs 4544% above
Medians across 2,281 emergency medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Park's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Park and other emergency medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chang Woo Park treated 199 Medicare patients in 2024, average age 75
CMS counts 199 Medicare patients who saw Dr. Park in 2024. The largest group is 75 to 84, with 70 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 2.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Park's median patient age at 56, with 55% women.
Dr. Park's Medicare patients by age, 2024
Dr. Park's Medicare patients by sex, 2024
- Women10151%
- Men9849%
Chronic conditions among Dr. Park's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Anxiety51%
- Mood disorders49%
- Ischemic heart disease48%
- Depression45%
- Chronic kidney disease43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Park's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chang Woo Park wrote 166 Medicare Part D claims in 2024
In 2024, Dr. Park wrote 166 Medicare Part D claims for 132 patients. 93% of them were for generic drugs. CMS names the drug for 65 of them, across 4 drugs with 11 or more claims each, at $273 in total drug cost. In 2023, CMS named 43 claims across 3 drugs.
Dr. Park's Part D claims by kind of drug, 2024
- Generic155 claims93%
- Brand-name11 claims7%
Dr. Park's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Park's Part D claims, 2024
- Opioids7%12 of 166 claims
- Antibiotics27%44 of 166 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 432024: 6551%
Drugs named by CMS: 4 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Chang Woo Park scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Park for performance year 2024, reported as part of a group. Dr. Park accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Park's MIPS scores, performance year 2024
- 93of 100Final score
- 86.8of 100Quality
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Chang Woo Park received $19 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Park from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. UCB, Inc. paid the most, $19.
Companies that paid Dr. Park the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Chang Woo Park's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Chang Woo Park
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Chang Woo Park's NPI number?
Dr. Chang Woo Park's NPI number is 1235757543. It was assigned on July 13, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Chang Woo Park?
Dr. Chang Woo Park is an emergency medicine physician in Elgin, Illinois. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Chang Woo Park practice?
Dr. Park practices at 77 N Airlite St, Elgin, IL 60123. Dr. Park's primary practice is Amita Health St Joseph Hospital - Elgin in Elgin, Illinois. Dmand AI also links Dr. Park to 1 hospital.
What is Dr. Chang Woo Park's office phone number?
The practice phone on file for Dr. Park is (847) 695-3200.
What is Dr. Chang Woo Park's medical license number?
Dr. Park holds Illinois license 036.167509, one of the licenses on file in 2 states.
Which states has Dr. Chang Woo Park been licensed in?
Dmand AI has state licenses on file for Dr. Park in Illinois and Ohio.
Which hospitals is Dr. Chang Woo Park affiliated with?
Dr. Park is affiliated with Saint Joseph Hospital. Dmand AI links Dr. Park to 1 more hospital.
What medical group is Dr. Chang Woo Park part of?
Dr. Park is linked to CEP America.
Does Dr. Chang Woo Park accept Medicare?
Yes. CMS data shows Dr. Park billed Medicare for 201 services in 2024, and Dr. Park accepts Medicare assignment.
What is Dr. Chang Woo Park's MIPS score?
Dr. Park's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Chang Woo Park see?
CMS counts 199 Medicare patients who saw Dr. Park in 2024, with an average age of 75.
What services does Dr. Chang Woo Park bill to Medicare?
In 2024, Dr. Park's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
What drugs does Dr. Chang Woo Park prescribe most?
In 2024 Medicare Part D data, Dr. Park's most prescribed drugs by claims were Ondansetron ODT, Cephalexin and Prednisone.
Has Dr. Chang Woo Park received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Park from 1 company from 2022 to 2022. The largest total came from UCB, Inc.
How long has Dr. Chang Woo Park been practicing?
Dr. Park graduated from medical school in 2020, 6 years ago.
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