Dr. Joon Sung Park, MD
- Medicare services, 2024
- 846
- Medicare patients, 2024
- 281
- Part D claims, 2024
- 2,115
- Hospital affiliations
- 5
- Industry payments
- $568
- Practice address
- 521 E Michigan Ave, Kalamazoo, MI 49007
- Practice phone
- Call (269) 375-5815
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Rcg Oshtemo
Kalamazoo, Michigan
Find Dr. Park's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Joon Sung Park is a nephrologist in Kalamazoo, Michigan
Dr. Park practices at Rcg Oshtemo in Kalamazoo, Michigan.
Dr. Park's NPI, 1699894709, was assigned on March 28, 2007. Dr. Park graduated from University of Vermont College of Medicine in 1999. Dr. Park holds Michigan license 4301074665.
- NPI
- 1699894709NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658262670
- NPI enumeration date
- March 28, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (269) 375-5815
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joon Sung Park practices at Rcg Oshtemo in Kalamazoo, Michigan
Dr. Park's primary practice is Rcg Oshtemo, at 521 E Michigan Ave, Kalamazoo, MI 49007 in Kalamazoo County. The practice phone is (269) 375-5815.
- Rcg Oshtemo521 E Michigan Ave, Kalamazoo, MI 49007 · Kalamazoo CountyPhone(269) 375-5815
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joon Sung Park is affiliated with 10 sites of care and 1 medical group
Dr. Park's primary practice is Rcg Oshtemo in Kalamazoo, Michigan. Dr. Park is also affiliated with Bronson Methodist Hospital. The medical group on file is Nephrology Center. Dmand AI also links Dr. Park to 4 more hospitals, 3 dialysis centers and 1 group practice or clinic, each 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. Joon Sung Park's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Park practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rcg Oshtemo | Available with a free account |
| +9 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joon Sung Park is one of 310 nephrologists in Michigan
Nephrology is Dr. Park's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Park is licensed in Michigan.
Specialties and state licenses
- Nephrology, MichiganPrimary
Nephrologists near Dr. Park
Counts of nephrologists 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. Joon Sung Park billed Medicare for 846 services in 2024
CMS data shows 846 Medicare services from Dr. Park across 10 procedure codes in 2024, for 281 Medicare patients. Medicare paid $118,556 for them.
Dr. Park's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3572024: 47734%
- Tests and treatments
- 2023: 3482024: 3501%
- Lab and pathology
- 2023: 182024: 196%
Where Dr. Park's Medicare services took place, 2024
- In an office62274%
- In a facility22426%
Dr. Park compared with the Michigan median for nephrologists, 2024
- Dr. Park
- Michigan median
- Medicare services
- 846vs 849Close to median
- Medicare patients
- 281vs 269Close to median
- Part D claims
- 2,018vs 5743.5 times
Medians across 310 nephrologists in Michigan 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 nephrologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joon Sung Park treated 281 Medicare patients in 2024, average age 72
CMS counts 281 Medicare patients who saw Dr. Park in 2024. The largest group is 65 to 74, with 92 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 22% are also on Medicaid. Their average risk score is 4.88, 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 75, with 46% women.
Dr. Park's Medicare patients by age, 2024
Dr. Park's Medicare patients by sex, 2024
- Women13849%
- Men14351%
Chronic conditions among Dr. Park's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes58%
- Heart failure58%
- Arthritis48%
- Ischemic heart disease48%
- Atrial fibrillation36%
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 75
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joon Sung Park wrote 2,115 Medicare Part D claims in 2024
In 2024, Dr. Park wrote 2,115 Medicare Part D claims for 307 patients. 67% of them were for generic drugs. CMS names the drug for 2,018 of them, across 27 drugs with 11 or more claims each, at $537,368 in total drug cost. In 2023, CMS named 1,877 claims across 25 drugs.
Dr. Park's Part D claims by kind of drug, 2024
- Generic1,415 claims67%
- Brand-name700 claims33%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,8772024: 2,0188%
Drugs named by CMS: 27 in 2024, 25 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
How Dr. Joon Sung Park takes part in Medicare
Dr. Park accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Joon Sung Park received $568 in industry payments from 2016 to 2025
CMS Open Payments shows 25 general payments to Dr. Park from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $82.
General payments to Dr. Park by program year, 2016 to 2025
Companies that paid Dr. Park 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. Joon Sung Park graduated from University of Vermont College of Medicine
Dr. Park graduated from University of Vermont College of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joon Sung 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) |
| 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. Joon Sung 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. Joon Sung Park's NPI number?
Dr. Joon Sung Park's NPI number is 1699894709. It was assigned on March 28, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Joon Sung Park?
Dr. Joon Sung Park is a nephrologist in Kalamazoo, Michigan. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Joon Sung Park practice?
Dr. Park practices at 521 E Michigan Ave, Kalamazoo, MI 49007. Dr. Park's primary practice is Rcg Oshtemo in Kalamazoo, Michigan. Dmand AI also links Dr. Park to 4 hospitals, 3 dialysis centers and 1 group practice or clinic.
What is Dr. Joon Sung Park's office phone number?
The practice phone on file for Dr. Park is (269) 375-5815.
What is Dr. Joon Sung Park's medical license number?
Dr. Park holds Michigan license 4301074665.
Which hospitals is Dr. Joon Sung Park affiliated with?
Dr. Park is affiliated with Bronson Methodist Hospital. Dmand AI links Dr. Park to 4 more hospitals.
What medical group is Dr. Joon Sung Park part of?
Dr. Park is linked to Nephrology Center.
Does Dr. Joon Sung Park accept Medicare?
Yes. CMS data shows Dr. Park billed Medicare for 846 services in 2024, and Dr. Park accepts Medicare assignment.
How many Medicare patients does Dr. Joon Sung Park see?
CMS counts 281 Medicare patients who saw Dr. Park in 2024, with an average age of 72.
What services does Dr. Joon Sung Park bill to Medicare?
In 2024, Dr. Park's most billed Medicare services were dialysis (90960), office visit, established patient (99214) and hospital inpatient care (99232).
Show 4 more questionsShow fewer questions
Where did Dr. Joon Sung Park go to medical school?
Dr. Park graduated from University of Vermont College of Medicine in 1999.
What drugs does Dr. Joon Sung Park prescribe most?
In 2024 Medicare Part D data, Dr. Park's most prescribed drugs by claims were Farxiga, Amlodipine Besylate and Lisinopril.
Has Dr. Joon Sung Park received payments from drug or device companies?
CMS Open Payments shows $568 in general payments to Dr. Park from 17 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Joon Sung Park been practicing?
Dr. Park graduated from medical school in 1999, 27 years ago.
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