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Dr. Shaun Joo Chun, MD
NPI1255423018
- Medicare services, 2024
- 342
- Medicare patients, 2024
- 190
- Part D claims, 2024
- 164
- Publications
- 1
- Industry payments
- $36
- Practice address
- 465 South St, Morristown, NJ 07960
- Practice phone
- Call (973) 971-7225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Atlantic Advanced Urgent Care
Urgent Care Center · Morristown, New Jersey
Find Dr. Chun's professional email, personal email and mobile number
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Dr. Shaun Joo Chun is an emergency medicine physician in Morristown, New Jersey
Dr. Chun practices at Atlantic Advanced Urgent Care in Morristown, New Jersey.
Dr. Chun's NPI, 1255423018, was assigned on September 29, 2006. Dr. Chun graduated from MCP-Hahnemann College of Medicine in 1996. Dr. Chun holds New Jersey license 25MA07091000.
NPI and contact details
- NPI
- 1255423018NPI Registry (opens in a new tab)
- NPI enumeration date
- September 29, 2006
- NPI status
- Active
- Practice phone
- (973) 971-7225
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Shaun Joo Chun practices at Atlantic Advanced Urgent Care in Morristown, New Jersey
Dr. Chun's primary practice is Atlantic Advanced Urgent Care, at 465 South St, Morristown, NJ 07960. The practice phone is (973) 971-7225.
- Atlantic Advanced Urgent Care465 South St, Morristown, NJ 07960Phone(973) 971-7225
Source: Dmand AI Affiliation Data
Dr. Shaun Joo Chun is affiliated with 1 site of care and 4 medical groups
Dr. Chun's primary practice is Atlantic Advanced Urgent Care in Morristown, New Jersey. The medical group on file is Atlantic Health Urgent Care at Newton. Dmand AI also links Dr. Chun to 3 more medical groups, each named with a free account. Dr. Chun's employer is on file too: an urgent care center.
Atlantic Advanced Urgent CarePrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Shaun Joo Chun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chun practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Atlantic Advanced Urgent Care | Available with a free account |
| +3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Shaun Joo Chun is one of 1,548 emergency medicine physicians in New Jersey
Emergency medicine is Dr. Chun's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chun is licensed in New Jersey.
Specialties and state licenses
- Emergency medicine, New JerseyPrimary
Emergency medicine physicians near Dr. Chun
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. Shaun Joo Chun billed Medicare for 342 services in 2024
CMS data shows 342 Medicare services from Dr. Chun across 11 procedure codes in 2024, for 190 Medicare patients. Medicare paid $15,573 for them. Every service was in an office.
Medicare services, 2024342
Medicare patients190
Paid by Medicare$15,573
Procedure codes11
Dr. Chun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2922024: 18138%
- Lab and pathology
- 2023: 2162024: 12244%
- Imaging
- 2023: 432024: 399%
- Tests and treatments
- 2023: 142024: 0100%
Dr. Chun compared with the New Jersey median for emergency medicine physicians, 2024
- Dr. Chun
- New Jersey median
- Medicare services
- 342vs 326Close to median
- Medicare patients
- 190vs 32141% below
- Part D claims
- 43vs 479% below
Medians across 1,494 emergency medicine physicians in New Jersey 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 emergency medicine physicians in New Jersey.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Shaun Joo Chun treated 190 Medicare patients in 2024, average age 73
CMS counts 190 Medicare patients who saw Dr. Chun in 2024. The largest group is 65 to 74, with 99 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chun's median patient age at 28, with 46% women.
Medicare patients, 2024190
Average age73
Average risk score1.05
Dr. Chun's Medicare patients by age, 2024
Dr. Chun's Medicare patients by sex, 2024
- Women12264%
- Men6836%
Chronic conditions among Dr. Chun's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis53%
- Ischemic heart disease31%
- Diabetes29%
- Anxiety23%
- Cancer18%
- Chronic kidney disease18%
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 28
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Shaun Joo Chun wrote 164 Medicare Part D claims in 2024
In 2024, Dr. Chun wrote 164 Medicare Part D claims for 127 patients. 81% of them were for generic drugs. CMS names the drug for 43 of them, across 3 drugs with 11 or more claims each, at $3,499 in total drug cost. In 2023, CMS named 79 claims across 5 drugs.
Part D claims, 2024164
Drugs named by CMS3
Total drug cost$3,499
Part D patients127
Dr. Chun's Part D claims by kind of drug, 2024
- Generic133 claims81%
- Brand-name19 claims12%
- Other12 claims7%
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
- Antibiotics48%79 of 164 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: 792024: 4346%
Drugs named by CMS: 3 in 2024, 5 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
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Dr. Shaun Joo Chun has 1 publication on record
Dmand AI links 1 paper to Dr. Chun in 2011. Dr. Chun's most frequent co-author is Kunj K. Desai, MD.
Papers1
Dr. Chun's most frequent co-authors
Recent publications by Dr. Chun
See who Dr. Chun researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chun works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Shaun Joo Chun received $36 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Chun from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Coloplast Corp paid the most, $36.
Companies that paid Dr. Chun the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Shaun Joo Chun graduated from MCP-Hahnemann College of Medicine
Dr. Chun graduated from MCP-Hahnemann College of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Shaun Joo 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Shaun Joo 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. Shaun Joo Chun's NPI number?
Dr. Shaun Joo Chun's NPI number is 1255423018. It was assigned on September 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Shaun Joo Chun?
Dr. Shaun Joo Chun is an emergency medicine physician in Morristown, New Jersey. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Shaun Joo Chun practice?
Dr. Chun practices at 465 South St, Morristown, NJ 07960. Dr. Chun's primary practice is Atlantic Advanced Urgent Care in Morristown, New Jersey. Dmand AI also links Dr. Chun to 3 medical groups.
What is Dr. Shaun Joo Chun's office phone number?
The practice phone on file for Dr. Chun is (973) 971-7225.
What is Dr. Shaun Joo Chun's medical license number?
Dr. Chun holds New Jersey license 25MA07091000.
What medical group is Dr. Shaun Joo Chun part of?
Dr. Chun is linked to Atlantic Health Urgent Care at Newton. Dmand AI links Dr. Chun to 3 more medical groups.
Does Dr. Shaun Joo Chun accept Medicare?
Yes. CMS data shows Dr. Chun billed Medicare for 342 services in 2024.
How many Medicare patients does Dr. Shaun Joo Chun see?
CMS counts 190 Medicare patients who saw Dr. Chun in 2024, with an average age of 73.
What services does Dr. Shaun Joo Chun bill to Medicare?
In 2024, Dr. Chun's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and diagnostic imaging (71046).
Where did Dr. Shaun Joo Chun go to medical school?
Dr. Chun graduated from MCP-Hahnemann College of Medicine in 1996.
Show 5 more questionsShow fewer questions
What drugs does Dr. Shaun Joo Chun prescribe most?
In 2024 Medicare Part D data, Dr. Chun's most prescribed drugs by claims were Amoxicillin-Clavulanate Potass, Nitrofurantoin Mono-Macro and Lagevrio (Eua).
Has Dr. Shaun Joo Chun received payments from drug or device companies?
CMS Open Payments shows $36 in general payments to Dr. Chun from 1 company from 2021 to 2021. The largest total came from Coloplast Corp.
How long has Dr. Shaun Joo Chun been practicing?
Dr. Chun graduated from medical school in 1996, 30 years ago.
Does Dr. Shaun Joo Chun do research?
Dmand AI links 1 publication to Dr. Chun.
Who does Dr. Shaun Joo Chun publish with?
Dr. Chun's most frequent co-authors are Kunj K. Desai, MD (1 shared paper).
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