Dr. Johnny Jaehwan Choi, MD

  • Los Angeles, CA
  • Internist
NPI1376640714PAC ID8224090238
Medicare services, 2024
33
Medicare patients, 2024
32
Part D claims, 2024
325
Hospital affiliations
1
Industry payments
$3,250
Practice address
1300 N Vermont Ave, Los Angeles, CA 90027
Practice phone
Call (213) 413-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

CHA Hollywood Presbyterian Medical Center

Hospital · Los Angeles, California

See all 5 affiliations

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Dr. Johnny Jaehwan Choi is an internist in Los Angeles, California

Dr. Choi practices at CHA Hollywood Presbyterian Medical Center in Los Angeles, California, part of CHA Health Systems.

Dr. Choi's NPI, 1376640714, was assigned on September 20, 2006. Dr. Choi graduated from Tufts University School Of Medicine in 2001. Dr. Choi holds California license A97680.

NPI and contact details
Medicare PAC ID
8224090238
NPI enumeration date
September 20, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(213) 413-3000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
51
Medical school graduation
2001

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Johnny Jaehwan Choi practices at CHA Hollywood Presbyterian Medical Center in Los Angeles, California

Dr. Choi's primary practice is CHA Hollywood Presbyterian Medical Center, at 1300 N Vermont Ave, Los Angeles, CA 90027 in Los Angeles County. The practice phone is (213) 413-3000.

Source: Dmand AI Affiliation Data

Dr. Johnny Jaehwan Choi is affiliated with 3 sites of care and 2 medical groups

Dr. Choi's primary practice is CHA Hollywood Presbyterian Medical Center in Los Angeles, California, part of CHA Health Systems. The medical group on file is Lakeside Community Healthcare. Dmand AI also links Dr. Choi to 1 more breast imaging center, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Choi

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Johnny Jaehwan Choi's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Choi practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
CHA Hollywood Presbyterian Medical CenterAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Johnny Jaehwan Choi is one of 16,751 internists in California

Internal medicine is Dr. Choi's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Choi's licenses on file in 3 states: California, Arizona and Massachusetts.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A97680 · 2006 to 2026 · taxonomy 207R00000X
  • Arizona license2010 to 2022
  • Massachusetts licenseLicense 222248 · 2004 to 2009

Clinical focus

Dmand AI lists acute mini-stroke (TIA), acute respiratory failure, anxiety, atrial fibrillation and flutter, cardiac arrhythmia, cellulitis, chronic anemia and chronic diabetes among the conditions Dr. Choi treats.

Internists near Dr. Choi

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. Johnny Jaehwan Choi billed Medicare for 33 services in 2024

CMS data shows 33 Medicare services from Dr. Choi across 2 procedure codes in 2024, all of them office visits, for 32 Medicare patients. Medicare paid $2,860 for them. Every service was in an office.

Medicare services, 202433
Medicare patients32
Paid by Medicare$2,860
Procedure codes2

Dr. Choi's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4962024: 3393%
Tests and treatments
2023: 562024: 0100%
Surgery
2023: 422024: 0100%

Dr. Choi compared with the California median for internists, 2024

  • Dr. Choi
  • California median
Medicare services
33vs 36191% below
Medicare patients
32vs 15179% below
Part D claims
81vs 42181% below

Medians across 15,815 internists 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.

See all procedures by Dr. Choi

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Johnny Jaehwan Choi treated 32 Medicare patients in 2024, average age 71

CMS counts 32 Medicare patients who saw Dr. Choi in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 66% are also on Medicaid. Their average risk score is 3.67, 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. Choi's median patient age at 62, with 49% women.

Medicare patients, 202432
Average age71
Average risk score3.67
Also on Medicaid66%

Dr. Choi's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Choi's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes72%
  4. Arthritis69%
  5. Chronic kidney disease69%
  6. Heart failure59%
  7. Mood disorders56%
  8. Depression53%

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 62

Patient panel by sex, all payers

  • Women49%
  • Men51%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Johnny Jaehwan Choi wrote 325 Medicare Part D claims in 2024

In 2024, Dr. Choi wrote 325 Medicare Part D claims for 112 patients. 87% of them were for generic drugs. CMS names the drug for 81 of them, across 4 drugs with 11 or more claims each, at $486 in total drug cost. In 2023, CMS named 231 claims across 15 drugs.

Part D claims, 2024325
Drugs named by CMS4
Total drug cost$486
Part D patients112

Dr. Choi's Part D claims by kind of drug, 2024

  • Generic282 claims87%
  • Brand-name43 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

  • Opioids6%21 of 325 claims
  • Antibiotics18%60 of 325 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: 2312024: 8165%

Drugs named by CMS: 4 in 2024, 15 in 2023.

See all prescribing by Dr. Choi

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. Johnny Jaehwan 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. Johnny Jaehwan Choi received $3,250 in industry payments from 2016 to 2025

CMS Open Payments shows 75 general payments to Dr. Choi from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 80% of the total. Abbott Laboratories paid the most, $667.

General payments to Dr. Choi by program year, 2016 to 2025

General payments to Dr. Choi by kind, 2016 to 2025

$3.2Kin total
  • Food and beverage$2,59780%
  • Education$65220%

Companies that paid Dr. Choi the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Choi

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Johnny Jaehwan Choi graduated from Tufts University School Of Medicine

Dr. Choi graduated from Tufts University School Of Medicine in 2001.

  1. Medical schoolTufts University School Of Medicine

Source: Dmand AI Professional Profile Data

Dr. Johnny Jaehwan Choi accepts plans from 5 insurance carriers

Dr. Choi is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Molina
  • CMS Medicare

Plan types Dr. Choi accepts, by number of carriers

  1. Medicare4
  2. PPO3
  3. HMO2
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Johnny Jaehwan Choi's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Johnny Jaehwan 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. Johnny Jaehwan Choi's NPI number?

Dr. Johnny Jaehwan Choi's NPI number is 1376640714. It was assigned on September 20, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Johnny Jaehwan Choi?

Dr. Johnny Jaehwan Choi is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Johnny Jaehwan Choi practice?

Dr. Choi practices at 1300 N Vermont Ave, Los Angeles, CA 90027. Dr. Choi's primary practice is CHA Hollywood Presbyterian Medical Center in Los Angeles, California, part of CHA Health Systems. Dmand AI also links Dr. Choi to 1 breast imaging center, 1 group practice or clinic and 1 medical group.

What is Dr. Johnny Jaehwan Choi's office phone number?

The practice phone on file for Dr. Choi is (213) 413-3000.

What is Dr. Johnny Jaehwan Choi's medical license number?

Dr. Choi holds California license A97680, one of the licenses on file in 3 states.

Which states has Dr. Johnny Jaehwan Choi been licensed in?

Dmand AI has state licenses on file for Dr. Choi in California (2006 to 2026), Arizona (2010 to 2022) and Massachusetts (2004 to 2009).

Which hospitals is Dr. Johnny Jaehwan Choi affiliated with?

Dr. Choi practices at CHA Hollywood Presbyterian Medical Center in Los Angeles, California.

What medical group is Dr. Johnny Jaehwan Choi part of?

Dr. Choi is linked to Lakeside Community Healthcare. Dmand AI links Dr. Choi to 1 more medical group.

Does Dr. Johnny Jaehwan Choi accept Medicare?

Yes. CMS data shows Dr. Choi billed Medicare for 33 services in 2024, and Dr. Choi accepts Medicare assignment.

How many Medicare patients does Dr. Johnny Jaehwan Choi see?

CMS counts 32 Medicare patients who saw Dr. Choi in 2024, with an average age of 71.

Show 6 more questionsShow fewer questions

What services does Dr. Johnny Jaehwan Choi bill to Medicare?

In 2024, Dr. Choi's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).

Where did Dr. Johnny Jaehwan Choi go to medical school?

Dr. Choi graduated from Tufts University School Of Medicine in 2001.

What drugs does Dr. Johnny Jaehwan Choi prescribe most?

In 2024 Medicare Part D data, Dr. Choi's most prescribed drugs by claims were Metoprolol Tartrate, Hydrocodone-Acetaminophen and Levofloxacin.

Has Dr. Johnny Jaehwan Choi received payments from drug or device companies?

CMS Open Payments shows $3,250 in general payments to Dr. Choi from 26 companies from 2016 to 2025. The largest total came from Abbott Laboratories.

How long has Dr. Johnny Jaehwan Choi been practicing?

Dr. Choi graduated from medical school in 2001, 25 years ago.

What insurance does Dr. Johnny Jaehwan Choi accept?

Dr. Choi is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

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