Dr. Ok Kyong Chaekal, MD
- Medicare services, 2024
- 350
- Medicare patients, 2024
- 111
- Part D claims, 2024
- 540
- MIPS score, 2024
- 81
- Hospital affiliations
- 3
- Practice address
- 11100 Euclid Avenue, Cleveland, OH 44106
- Practice phone
- Call (216) 844-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Chaekal's professional email, personal email and mobile number
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Dr. Ok Kyong Chaekal is a hematology (pathology) physician in Cleveland, Ohio
Dr. Chaekal practices at University Hospitals Cleveland Medical Center in Cleveland, Ohio, part of University Hospitals Health System.
Dr. Chaekal's NPI, 1093701021, was assigned on September 26, 2005. Dr. Chaekal graduated from Indiana University School Of Medicine in 1987. Dr. Chaekal holds New York license 263766.
- NPI
- 1093701021NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133112915
- NPI enumeration date
- September 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (216) 844-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ok Kyong Chaekal practices at University Hospitals Cleveland Medical Center in Cleveland, Ohio
Dr. Chaekal's primary practice is University Hospitals Cleveland Medical Center, at 11100 Euclid Avenue, Cleveland, OH 44106 in Cuyahoga County. The practice phone is (216) 844-1000.
- University Hospitals Cleveland Medical Center11100 Euclid Avenue, Cleveland, OH 44106 · Cuyahoga CountyPhone(216) 844-1000
Source: Dmand AI Affiliation Data
Dr. Ok Kyong Chaekal is affiliated with 3 sites of care and 1 medical group
Dr. Chaekal's primary practice is University Hospitals Cleveland Medical Center in Cleveland, Ohio, part of University Hospitals Health System. Dr. Chaekal is also affiliated with NewYork-Presbyterian/Weill Cornell Medical Center. The medical group on file is University Hospitals Medical Practices. Dmand AI also links Dr. Chaekal to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ok Kyong Chaekal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chaekal practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospitals Cleveland Medical Center | 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. Ok Kyong Chaekal is one of 10 hematology (pathology) physicians in Ohio
Hematology is Dr. Chaekal's primary specialty in the NPI Registry, under taxonomy code 207ZH0000X. Dr. Chaekal is licensed in New York.
Specialties and state licenses
- Hematology (pathology), New YorkPrimary
Hematology (pathology) physicians near Dr. Chaekal
Counts of hematology (pathology) 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. Ok Kyong Chaekal billed Medicare for 350 services in 2024
CMS data shows 350 Medicare services from Dr. Chaekal across 5 procedure codes in 2024, for 111 Medicare patients. Medicare paid $35,521 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chaekal's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1992024: 35076%
Dr. Chaekal compared with the Ohio median for hematology (pathology) physicians, 2024
- Dr. Chaekal
- Ohio median
- Medicare services
- 350vs 39110% below
Medians across 11 hematology (pathology) physicians in Ohio with Dmand AI profiles that report each measure.
Dr. Chaekal'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ok Kyong Chaekal treated 111 Medicare patients in 2024, average age 74
CMS counts 111 Medicare patients who saw Dr. Chaekal in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have high blood pressure, and 68% have high cholesterol. Their average risk score is 2.68, 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. Chaekal's median patient age at 74, with 49% women.
Dr. Chaekal's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chaekal's Medicare patients by sex, 2024
- Women4641%
- Men6559%
Chronic conditions among Dr. Chaekal's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Arthritis55%
- Ischemic heart disease44%
- Chronic kidney disease39%
- Anxiety28%
- Heart failure27%
- Diabetes24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chaekal's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women49%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ok Kyong Chaekal wrote 540 Medicare Part D claims in 2024
In 2024, Dr. Chaekal wrote 540 Medicare Part D claims for 82 patients. 75% of them were for generic drugs. CMS names the drug for 415 of them, across 12 drugs with 11 or more claims each, at $3,837,842 in total drug cost. In 2023, CMS named 207 claims across 7 drugs.
Dr. Chaekal's Part D claims by kind of drug, 2024
- Generic403 claims75%
- Brand-name137 claims25%
Dr. Chaekal'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. Chaekal's Part D claims, 2024
- Antibiotics4%19 of 540 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: 2072024: 415100%
Drugs named by CMS: 12 in 2024, 7 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. Ok Kyong Chaekal scored 81 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 81 out of 100 for Dr. Chaekal for performance year 2024, reported as part of a group. Dr. Chaekal accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chaekal as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chaekal's MIPS scores, performance year 2024
- 81of 100Final score
- 63.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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. Ok Kyong Chaekal received $21,277 in industry payments from 2016 to 2025
CMS Open Payments shows 364 general payments to Dr. Chaekal from 36 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 49% of the total. AstraZeneca Pharmaceuticals LP paid the most, $10,972.
General payments to Dr. Chaekal by program year, 2016 to 2025
General payments to Dr. Chaekal by kind, 2016 to 2025
- Consulting fees$10,50049%
- Food and beverage$9,53745%
- Travel and lodging$7664%
- Education$4742%
Companies that paid Dr. Chaekal the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ok Kyong Chaekal graduated from Indiana University School Of Medicine
Dr. Chaekal graduated from Indiana University School Of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ok Kyong Chaekal'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Ok Kyong Chaekal
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. Ok Kyong Chaekal's NPI number?
Dr. Ok Kyong Chaekal's NPI number is 1093701021. It was assigned on September 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ok Kyong Chaekal?
Dr. Ok Kyong Chaekal is a hematology (pathology) physician in Cleveland, Ohio. The primary specialty in the NPI Registry is Hematology (Pathology) Physician (taxonomy code 207ZH0000X).
Where does Dr. Ok Kyong Chaekal practice?
Dr. Chaekal practices at 11100 Euclid Avenue, Cleveland, OH 44106. Dr. Chaekal's primary practice is University Hospitals Cleveland Medical Center in Cleveland, Ohio, part of University Hospitals Health System. Dmand AI also links Dr. Chaekal to 1 hospital.
What is Dr. Ok Kyong Chaekal's office phone number?
The practice phone on file for Dr. Chaekal is (216) 844-1000.
What is Dr. Ok Kyong Chaekal's medical license number?
Dr. Chaekal holds New York license 263766.
Which hospitals is Dr. Ok Kyong Chaekal affiliated with?
Dr. Chaekal practices at University Hospitals Cleveland Medical Center in Cleveland, Ohio. Dr. Chaekal is also affiliated with NewYork-Presbyterian/Weill Cornell Medical Center. Dmand AI links Dr. Chaekal to 1 more hospital.
What medical group is Dr. Ok Kyong Chaekal part of?
Dr. Chaekal is linked to University Hospitals Medical Practices.
Does Dr. Ok Kyong Chaekal accept Medicare?
Yes. CMS data shows Dr. Chaekal billed Medicare for 350 services in 2024, and Dr. Chaekal accepts Medicare assignment.
Does Dr. Ok Kyong Chaekal offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chaekal as offering telehealth services.
What is Dr. Ok Kyong Chaekal's MIPS score?
Dr. Chaekal's MIPS final score for performance year 2024 is 81 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Ok Kyong Chaekal see?
CMS counts 111 Medicare patients who saw Dr. Chaekal in 2024, with an average age of 74.
What services does Dr. Ok Kyong Chaekal bill to Medicare?
In 2024, Dr. Chaekal's most billed Medicare services were office visit, established patient (99215), hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Ok Kyong Chaekal go to medical school?
Dr. Chaekal graduated from Indiana University School Of Medicine in 1987.
What drugs does Dr. Ok Kyong Chaekal prescribe most?
In 2024 Medicare Part D data, Dr. Chaekal's most prescribed drugs by claims were Lenalidomide, Acyclovir and Revlimid.
Has Dr. Ok Kyong Chaekal received payments from drug or device companies?
CMS Open Payments shows $21,277 in general payments to Dr. Chaekal from 36 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Ok Kyong Chaekal been practicing?
Dr. Chaekal graduated from medical school in 1987, 39 years ago.
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