Dr. Wookjin Chun, MD
- Medicare services, 2024
- 472
- Medicare patients, 2024
- 75
- Part D claims, 2024
- 4,319
- Hospital affiliations
- 1
- Industry payments
- $104
- Practice address
- 825 South 94th Street, Chandler, AZ 85224
- Practice phone
- Call (480) 361-6636
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Santé of Chandler
Skilled Nursing Facility · Chandler, Arizona
Find Dr. Chun's professional email, personal email and mobile number
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Dr. Wookjin Chun is an internist in Chandler, Arizona
Dr. Chun practices at Santé of Chandler in Chandler, Arizona.
Dr. Chun's NPI, 1689688699, was assigned on July 27, 2006. Dr. Chun graduated from Wayne State University School of Medicine in 1999. Dr. Chun holds Arizona license 35822.
- NPI
- 1689688699NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012911134
- NPI enumeration date
- July 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (480) 361-6636
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Wookjin Chun practices at Santé of Chandler in Chandler, Arizona
Dr. Chun's primary practice is Santé of Chandler, at 825 South 94th Street, Chandler, AZ 85224 in Maricopa County. The practice phone is (480) 361-6636.
- Santé of Chandler825 South 94th Street, Chandler, AZ 85224 · Maricopa CountyPhone(480) 361-6636
Source: Dmand AI Affiliation Data
Dr. Wookjin Chun is affiliated with 9 sites of care and 7 medical groups
Dr. Chun's primary practice is Santé of Chandler in Chandler, Arizona. Dr. Chun is also affiliated with Banner Baywood Medical Center. The medical group on file is Sound Physicians. Dmand AI also links Dr. Chun to 6 more medical groups, 5 group practices and clinics and 2 skilled nursing facilities, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Wookjin Chun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chun practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santé of Chandler | Available with a free account |
| +8 more sites and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Wookjin Chun is one of 2,420 internists in Arizona
Internal medicine is Dr. Chun's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chun is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Chun
Counts of internists 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. Wookjin Chun billed Medicare for 472 services in 2024
CMS data shows 472 Medicare services from Dr. Chun across 4 procedure codes in 2024, for 75 Medicare patients. Medicare paid $45,192 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7212024: 47235%
Dr. Chun compared with the Arizona median for internists, 2024
- Dr. Chun
- Arizona median
- Medicare services
- 472vs 476Close to median
- Medicare patients
- 75vs 20563% below
- Part D claims
- 3,663vs 26014.1 times
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Chun'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. Chun and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Wookjin Chun treated 75 Medicare patients in 2024, average age 79
CMS counts 75 Medicare patients who saw Dr. Chun in 2024. The largest group is 75 to 84, with 27 patients. 75% of them have high blood pressure, and 61% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.18, 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. Chun's median patient age at 77, with 51% women.
Dr. Chun's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chun's Medicare patients by sex, 2024
- Women4763%
- Men2837%
Chronic conditions among Dr. Chun's Medicare patients, 2024
- High blood pressure75%
- High cholesterol61%
- Anxiety49%
- Depression48%
- Mood disorders48%
- Arthritis44%
- Chronic kidney disease41%
- Alzheimer's and dementia40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Wookjin Chun wrote 4,319 Medicare Part D claims in 2024
In 2024, Dr. Chun wrote 4,319 Medicare Part D claims for 398 patients. 83% of them were for generic drugs. CMS names the drug for 3,663 of them, across 98 drugs with 11 or more claims each, at $199,465 in total drug cost. In 2023, CMS named 3,785 claims across 95 drugs.
Dr. Chun's Part D claims by kind of drug, 2024
- Generic3,569 claims83%
- Brand-name and other750 claims17%
Dr. Chun'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. Chun's Part D claims, 2024
- Opioids5%235 of 4,319 claims
- Antibiotics3%130 of 4,319 claims
- Antipsychotics, patients 65 and over2%66 of 4,319 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: 3,7852024: 3,6633%
Drugs named by CMS: 98 in 2024, 95 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. Wookjin Chun takes part in Medicare
Dr. Chun 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. Wookjin Chun received $104 in industry payments from 2016 to 2019
CMS Open Payments shows 7 general payments to Dr. Chun from 3 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $71.
General payments to Dr. Chun by program year, 2016 to 2019
Companies that paid Dr. Chun the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Wookjin Chun graduated from Wayne State University School of Medicine
Dr. Chun graduated from Wayne State University School of Medicine in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Wookjin Chun'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) |
| 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. Wookjin Chun
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. Wookjin Chun's NPI number?
Dr. Wookjin Chun's NPI number is 1689688699. It was assigned on July 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Wookjin Chun?
Dr. Wookjin Chun is an internist in Chandler, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Wookjin Chun practice?
Dr. Chun practices at 825 South 94th Street, Chandler, AZ 85224. Dr. Chun's primary practice is Santé of Chandler in Chandler, Arizona. Dmand AI also links Dr. Chun to 6 medical groups, 5 group practices and clinics and 2 skilled nursing facilities.
What is Dr. Wookjin Chun's office phone number?
The practice phone on file for Dr. Chun is (480) 361-6636.
What is Dr. Wookjin Chun's medical license number?
Dr. Chun holds Arizona license 35822.
Which hospitals is Dr. Wookjin Chun affiliated with?
Dr. Chun is affiliated with Banner Baywood Medical Center.
What medical group is Dr. Wookjin Chun part of?
Dr. Chun is linked to Sound Physicians. Dmand AI links Dr. Chun to 6 more medical groups.
Does Dr. Wookjin Chun accept Medicare?
Yes. CMS data shows Dr. Chun billed Medicare for 472 services in 2024, and Dr. Chun accepts Medicare assignment.
How many Medicare patients does Dr. Wookjin Chun see?
CMS counts 75 Medicare patients who saw Dr. Chun in 2024, with an average age of 79.
What services does Dr. Wookjin Chun bill to Medicare?
In 2024, Dr. Chun's most billed Medicare services were nursing facility care (99309), nursing facility care (99310) and nursing facility care (99306).
Show 4 more questionsShow fewer questions
Where did Dr. Wookjin Chun go to medical school?
Dr. Chun graduated from Wayne State University School of Medicine in 1999.
What drugs does Dr. Wookjin Chun prescribe most?
In 2024 Medicare Part D data, Dr. Chun's most prescribed drugs by claims were Eliquis, Atorvastatin Calcium and Oxycodone HCl.
Has Dr. Wookjin Chun received payments from drug or device companies?
CMS Open Payments shows $104 in general payments to Dr. Chun from 3 companies from 2016 to 2019. The largest total came from Pfizer Inc.
How long has Dr. Wookjin Chun been practicing?
Dr. Chun graduated from medical school in 1999, 27 years ago.
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