Clin Neurol Neurosurg
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Dr. Johanna H. Yun, MD
NPI1396204426PAC ID1052649910
- Medicare services, 2024
- 52
- Medicare patients, 2024
- 56
- Part D claims, 2024
- 68
- Publications
- 5
- MIPS score, 2024
- 100
- Practice address
- 6010 Hidden Valley Rd, Carlsbad, CA 92011
- Practice phone
- Call (310) 869-2259
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Premier Pharmacy Services
Carlsbad, California
Find Dr. Yun's professional email, personal email and mobile number
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Dr. Johanna H. Yun is a neurologist in Carlsbad, California
Dr. Yun practices at Premier Pharmacy Services in Carlsbad, California.
Dr. Yun's NPI, 1396204426, was assigned on March 18, 2019. Dr. Yun graduated from USF Health Morsani College of Medicine in 2019. Dr. Yun holds California license A196635.
NPI and contact details
- NPI
- 1396204426NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052649910
- NPI enumeration date
- March 18, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 869-2259
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Johanna H. Yun practices at Premier Pharmacy Services in Carlsbad, California
Dr. Yun's primary practice is Premier Pharmacy Services, at 6010 Hidden Valley Rd, Carlsbad, CA 92011 in San Diego County. The practice phone is (310) 869-2259.
- Premier Pharmacy Services6010 Hidden Valley Rd, Carlsbad, CA 92011 · San Diego CountyPhone(310) 869-2259
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Johanna H. Yun is affiliated with 5 sites of care and 1 medical group
Dr. Yun's primary practice is Premier Pharmacy Services in Carlsbad, California. Dr. Yun is also affiliated with Hillcrest Medical Center. The medical group on file is The Neurology Center of Southern California. Dmand AI also links Dr. Yun to 2 more hospitals and 1 group practice or clinic, each named with a free account.
Premier Pharmacy ServicesPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Johanna H. Yun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yun practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Premier Pharmacy Services | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Johanna H. Yun is one of 2,207 neurologists in California
Neurology is Dr. Yun's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Yun is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Yun's licenses on file in 2 states: California and New York.
Specialties and state licenses
- Neurology, CaliforniaPrimary
- New York license
Neurologists near Dr. Yun
Counts of neurologists 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. Johanna H. Yun billed Medicare for 52 services in 2024
CMS data shows 52 Medicare services from Dr. Yun across 2 procedure codes in 2024, for 56 Medicare patients. Medicare paid $7,203 for them. Every service was in an office.
Medicare services, 202452
Medicare patients56
Paid by Medicare$7,203
Procedure codes2
Dr. Yun's Medicare services by type, 2024
- Office and hospital visits34
- Tests and treatments18
Dr. Yun compared with the California median for neurologists, 2024
- Dr. Yun
- California median
- Medicare services
- 52vs 40487% below
- Medicare patients
- 56vs 19071% below
- Part D claims
- 30vs 32491% below
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Yun'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. Yun and other neurologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Johanna H. Yun treated 56 Medicare patients in 2024, average age 72
CMS counts 56 Medicare patients who saw Dr. Yun in 2024. The largest group is 75 to 84, with 24 patients. 75% of them have high blood pressure, and 70% have arthritis. 21% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Yun's median patient age at 67, with 65% women.
Medicare patients, 202456
Average age72
Average risk score1.49
Also on Medicaid21%
Dr. Yun's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Yun's Medicare patients by sex, 2024
- Women3257%
- Men2443%
Chronic conditions among Dr. Yun's Medicare patients, 2024
- High blood pressure75%
- Arthritis70%
- High cholesterol70%
- Anxiety39%
- Mood disorders36%
- Chronic kidney disease32%
- Depression30%
- Diabetes29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women65%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Johanna H. Yun wrote 68 Medicare Part D claims in 2024
In 2024, Dr. Yun wrote 68 Medicare Part D claims for 28 patients. 91% of them were for generic drugs. CMS names the drug for 30 of them, across 2 drugs with 11 or more claims each, at $610 in total drug cost.
Part D claims, 202468
Drugs named by CMS2
Total drug cost$610
Part D patients28
Dr. Yun's Part D claims by kind of drug, 2024
- Generic62 claims91%
- Brand-name and other6 claims9%
Dr. Yun'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.
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
Dr. Johanna H. Yun scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Yun for performance year 2024, reported through an alternative payment model (APM). Dr. Yun accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Yun as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Yun's MIPS scores, performance year 2024
- 100of 100Final score
- 85.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Johanna H. Yun has 5 publications on record
Dmand AI links 5 papers to Dr. Yun, published from 2021 to 2022. 2021 was the busiest year, with 3. Dr. Yun's most frequent co-authors are Diogo C. Haussen, MD, Mehdi Bouslama and Taylor Bartlett Harrison, MD.
Papers5
Years published2021 to 2022
Dr. Yun's most frequent co-authors
- Diogo C. Haussen, MD2 shared papers
- Mehdi Bouslama1 shared paper
- Taylor Bartlett Harrison, MD1 shared paper
Recent publications by Dr. Yun
Angiography, Digital SubtractionCarotid ArteriesComputed Tomography Angiography
World Neurosurg
Angioplasty, BalloonCarotid StenosisCatheters
Cognitive DysfunctionHypertension, Pregnancy-InducedNeurology
See who Dr. Yun researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yun works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Johanna H. Yun received $2,448 in industry payments from 2020 to 2025
CMS Open Payments shows 106 general payments to Dr. Yun from 22 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. SK Life Science, Inc. paid the most, $593.
General payments to Dr. Yun by program year, 2020 to 2025
Companies that paid Dr. Yun the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Johanna H. Yun graduated from USF Health Morsani College of Medicine
Dr. Yun graduated from USF Health Morsani College of Medicine in 2019.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. Johanna H. Yun accepts plans from 9 insurance carriers
Dr. Yun is in network with 9 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- Humana
- Blue Cross Blue Shield of Massachusetts
- Cigna
- HCSC
- Regence Health Plans
- +1 more carriersWith a free account
Plan types Dr. Yun accepts, by number of carriers
- Medicare9
- PPO8
- HMO4
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Johanna H. Yun'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 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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Johanna H. Yun
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. Johanna H. Yun's NPI number?
Dr. Johanna H. Yun's NPI number is 1396204426. It was assigned on March 18, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Johanna H. Yun?
Dr. Johanna H. Yun is a neurologist in Carlsbad, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Johanna H. Yun practice?
Dr. Yun practices at 6010 Hidden Valley Rd, Carlsbad, CA 92011. Dr. Yun's primary practice is Premier Pharmacy Services in Carlsbad, California. Dmand AI also links Dr. Yun to 2 hospitals and 1 group practice or clinic.
What is Dr. Johanna H. Yun's office phone number?
The practice phone on file for Dr. Yun is (310) 869-2259.
What is Dr. Johanna H. Yun's medical license number?
Dr. Yun holds California license A196635, one of the licenses on file in 2 states.
Which states has Dr. Johanna H. Yun been licensed in?
Dmand AI has state licenses on file for Dr. Yun in California (2024 to 2026) and New York (2023 to 2025).
Which hospitals is Dr. Johanna H. Yun affiliated with?
Dr. Yun is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Yun to 2 more hospitals.
What medical group is Dr. Johanna H. Yun part of?
Dr. Yun is linked to The Neurology Center of Southern California.
Does Dr. Johanna H. Yun accept Medicare?
Yes. CMS data shows Dr. Yun billed Medicare for 52 services in 2024, and Dr. Yun accepts Medicare assignment.
Does Dr. Johanna H. Yun offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Yun as offering telehealth services.
Show 11 more questionsShow fewer questions
What is Dr. Johanna H. Yun's MIPS score?
Dr. Yun's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Johanna H. Yun see?
CMS counts 56 Medicare patients who saw Dr. Yun in 2024, with an average age of 72.
Is Dr. Johanna H. Yun board certified?
Yes. Dr. Yun is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. Johanna H. Yun bill to Medicare?
In 2024, Dr. Yun's most billed Medicare services were office visit, new patient (99205) and eye exam or test (92060).
Where did Dr. Johanna H. Yun go to medical school?
Dr. Yun graduated from USF Health Morsani College of Medicine in 2019.
What drugs does Dr. Johanna H. Yun prescribe most?
In 2024 Medicare Part D data, Dr. Yun's most prescribed drugs by claims were Gabapentin and Acetazolamide.
Has Dr. Johanna H. Yun received payments from drug or device companies?
CMS Open Payments shows $2,448 in general payments to Dr. Yun from 22 companies from 2020 to 2025. The largest total came from SK Life Science, Inc.
How long has Dr. Johanna H. Yun been practicing?
Dr. Yun graduated from medical school in 2019, 7 years ago.
Does Dr. Johanna H. Yun do research?
Dmand AI links 5 publications to Dr. Yun, published from 2021 to 2022.
Who does Dr. Johanna H. Yun publish with?
Dr. Yun's most frequent co-authors are Diogo C. Haussen, MD (2 shared papers), Mehdi Bouslama (1 shared paper) and Taylor Bartlett Harrison, MD (1 shared paper).
What insurance does Dr. Johanna H. Yun accept?
Dr. Yun is in network with 9 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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