Dr. Jack Joon-Sung Choi, MD
- Medicare services, 2024
- 11
- Medicare patients, 2024
- 31
- Part D claims, 2024
- 447
- Hospital affiliations
- 1
- Industry payments
- $29
- Practice address
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente San Diego Medical Center
San Diego, California
Find Dr. Choi'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. Jack Joon-Sung Choi is an emergency medicine physician in San Diego, California
Dr. Choi practices at Kaiser Permanente San Diego Medical Center in San Diego, California.
Dr. Choi's NPI, 1710186713, was assigned on July 11, 2007. Dr. Choi graduated from Albert Einstein College of Medicine in 2002. Dr. Choi holds California license A99061.
- NPI
- 1710186713NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810083763
- NPI enumeration date
- July 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jack Joon-Sung Choi practices at Kaiser Permanente San Diego Medical Center in San Diego, California
Dr. Choi's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente San Diego Medical Center9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jack Joon-Sung Choi is affiliated with 2 sites of care and 2 medical groups
Dr. Choi's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dr. Choi is also affiliated with Walnut Creek Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Choi to 1 more medical group, 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. Jack Joon-Sung Choi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Choi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente San Diego Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jack Joon-Sung Choi is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Choi's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Choi is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Choi's licenses on file in 3 states: California, Hawaii and New York.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Hawaii license
- New York license
Emergency medicine physicians near Dr. Choi
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. Jack Joon-Sung Choi billed Medicare for 11 services in 2024
CMS data shows 11 Medicare services from Dr. Choi across 1 procedure code in 2024, all of them office visits, for 31 Medicare patients. Medicare paid $254 for them. Every service was in an office.
Dr. Choi's Medicare services by type, 2018 to 2024
- 2018
- 2024
- Office and hospital visits
- 2018: 302024: 1163%
Dr. Choi compared with the California median for emergency medicine physicians, 2024
- Dr. Choi
- California median
- Medicare services
- 11vs 26596% below
- Medicare patients
- 31vs 24387% below
- Part D claims
- 341vs 625.5 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Choi'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. Choi and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jack Joon-Sung Choi treated 31 Medicare patients in 2024, average age 69
CMS counts 31 Medicare patients who saw Dr. Choi in 2024. The largest group is 65 to 74, with 14 patients. 55% of them have high blood pressure, and 52% have high cholesterol. 35% are also on Medicaid. Their average risk score is 0.80, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Choi's median patient age at 29, with 67% women.
Dr. Choi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Choi's Medicare patients by sex, 2024
- Women1342%
- Men1858%
Chronic conditions among Dr. Choi's Medicare patients, 2024
- High blood pressure55%
- High cholesterol52%
- Diabetes42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Choi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 29
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jack Joon-Sung Choi wrote 447 Medicare Part D claims in 2024
In 2024, Dr. Choi wrote 447 Medicare Part D claims for 364 patients. 87% of them were for generic drugs. CMS names the drug for 341 of them, across 15 drugs with 11 or more claims each, at $4,659 in total drug cost. In 2023, CMS named 295 claims across 15 drugs.
Dr. Choi's Part D claims by kind of drug, 2024
- Generic391 claims87%
- Brand-name and other56 claims13%
Dr. Choi'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. Choi's Part D claims, 2024
- Antibiotics49%219 of 447 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: 2952024: 34116%
Drugs named by CMS: 15 in 2024, 15 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. Jack Joon-Sung Choi takes part in Medicare
Dr. Choi 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. Jack Joon-Sung Choi received $29 in industry payments in 2017
CMS Open Payments shows 2 general payments to Dr. Choi from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $29.
Companies that paid Dr. Choi the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jack Joon-Sung Choi graduated from Albert Einstein College of Medicine
Dr. Choi graduated from Albert Einstein College of Medicine in 2002.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Jack Joon-Sung Choi accepts plans from 2 insurance carriers
Dr. Choi is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Choi accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jack Joon-Sung Choi'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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Jack Joon-Sung Choi
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. Jack Joon-Sung Choi's NPI number?
Dr. Jack Joon-Sung Choi's NPI number is 1710186713. It was assigned on July 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Jack Joon-Sung Choi?
Dr. Jack Joon-Sung Choi is an emergency medicine physician in San Diego, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Jack Joon-Sung Choi practice?
Dr. Choi practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Dr. Choi's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dmand AI also links Dr. Choi to 1 medical group.
What is Dr. Jack Joon-Sung Choi's office phone number?
The practice phone on file for Dr. Choi is (619) 528-5000.
What is Dr. Jack Joon-Sung Choi's medical license number?
Dr. Choi holds California license A99061, one of the licenses on file in 3 states.
Which states has Dr. Jack Joon-Sung Choi been licensed in?
Dmand AI has state licenses on file for Dr. Choi in California (2007 to 2026), Hawaii (2008 to 2022) and New York (2004 to 2007).
Which hospitals is Dr. Jack Joon-Sung Choi affiliated with?
Dr. Choi is affiliated with Walnut Creek Medical Center.
What medical group is Dr. Jack Joon-Sung Choi part of?
Dr. Choi is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Choi to 1 more medical group.
Does Dr. Jack Joon-Sung Choi accept Medicare?
Yes. CMS data shows Dr. Choi billed Medicare for 11 services in 2024, and Dr. Choi accepts Medicare assignment.
How many Medicare patients does Dr. Jack Joon-Sung Choi see?
CMS counts 31 Medicare patients who saw Dr. Choi in 2024, with an average age of 69.
Show 7 more questionsShow fewer questions
Is Dr. Jack Joon-Sung Choi board certified?
Yes. Dr. Choi is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Jack Joon-Sung Choi bill to Medicare?
In 2024, Dr. Choi's most billed Medicare services were office visit, established patient (99212).
Where did Dr. Jack Joon-Sung Choi go to medical school?
Dr. Choi graduated from Albert Einstein College of Medicine in 2002.
What drugs does Dr. Jack Joon-Sung Choi prescribe most?
In 2024 Medicare Part D data, Dr. Choi's most prescribed drugs by claims were Cefadroxil, Amoxicillin-Clavulanate Potass and Prednisone.
Has Dr. Jack Joon-Sung Choi received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to Dr. Choi from 1 company from 2017 to 2017. The largest total came from Allergan Inc.
How long has Dr. Jack Joon-Sung Choi been practicing?
Dr. Choi graduated from medical school in 2002, 24 years ago.
What insurance does Dr. Jack Joon-Sung Choi accept?
Dr. Choi is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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