Dr. Ryan Rahee Yoon, MD
- Medicare services, 2024
- 300
- Medicare patients, 2024
- 127
- Part D claims, 2024
- 134
- Hospital affiliations
- 1
- Industry payments
- $19
- Practice address
- 678 3rd Ave, Chula Vista, CA 91910
- Practice phone
- Call (619) 662-4100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Ysidro Health Chula Vista
FQHC - Satellite Clinic · Chula Vista, California
Find Dr. Yoon'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. Ryan Rahee Yoon is a family medicine physician in Chula Vista, California
Dr. Yoon practices at San Ysidro Health Chula Vista in Chula Vista, California.
Dr. Yoon's NPI, 1942435144, was assigned on May 18, 2009. Dr. Yoon graduated from University of California, San Diego School of Medicine in 2009. Dr. Yoon holds California license A114600.
- NPI
- 1942435144NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911153903
- NPI enumeration date
- May 18, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 662-4100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan Rahee Yoon practices at San Ysidro Health Chula Vista in Chula Vista, California
Dr. Yoon's primary practice is San Ysidro Health Chula Vista, at 678 3rd Ave, Chula Vista, CA 91910 in San Diego County. The practice phone is (619) 662-4100.
- San Ysidro Health Chula Vista678 3rd Ave, Chula Vista, CA 91910 · San Diego CountyPhone(619) 662-4100
Source: Dmand AI Affiliation Data
Dr. Ryan Rahee Yoon is affiliated with 3 sites of care and 3 medical groups
Dr. Yoon's primary practice is San Ysidro Health Chula Vista in Chula Vista, California. Dr. Yoon is also affiliated with Scripps Mercy Hospital San Diego. The medical group on file is San Ysidro Health. Dmand AI also links Dr. Yoon to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ryan Rahee Yoon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yoon practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Ysidro Health Chula Vista | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ryan Rahee Yoon is one of 15,680 family medicine physicians in California
Family medicine is Dr. Yoon's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Yoon is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Yoon
Counts of family 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. Ryan Rahee Yoon billed Medicare for 300 services in 2024
CMS data shows 300 Medicare services from Dr. Yoon across 5 procedure codes in 2024, for 127 Medicare patients. Medicare paid $27,960 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Yoon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2612024: 30015%
Dr. Yoon compared with the California median for family medicine physicians, 2024
- Dr. Yoon
- California median
- Medicare services
- 300vs 24622% above
- Medicare patients
- 127vs 1188% above
- Part D claims
- 49vs 83394% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Yoon'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ryan Rahee Yoon treated 127 Medicare patients in 2024, average age 73
CMS counts 127 Medicare patients who saw Dr. Yoon in 2024. The largest group is 65 to 74, with 47 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 68% are also on Medicaid. Their average risk score is 2.99, 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. Yoon's median patient age at 63, with 54% women.
Dr. Yoon's Medicare patients by age, 2024
Dr. Yoon's Medicare patients by sex, 2024
- Women5946%
- Men6854%
Chronic conditions among Dr. Yoon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes57%
- Ischemic heart disease52%
- Heart failure50%
- Mood disorders50%
- Chronic kidney disease49%
- Anxiety46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yoon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ryan Rahee Yoon wrote 134 Medicare Part D claims in 2024
In 2024, Dr. Yoon wrote 134 Medicare Part D claims for 54 patients. 76% of them were for generic drugs. CMS names the drug for 49 of them, across 4 drugs with 11 or more claims each, at $354 in total drug cost. In 2018, CMS named 45 claims across 3 drugs.
Dr. Yoon's Part D claims by kind of drug, 2024
- Generic102 claims76%
- Brand-name and other32 claims24%
Dr. Yoon's most prescribed drugs by claims, 2020
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. Yoon's Part D claims, 2024
- Opioids10%13 of 134 claims
- Antibiotics13%18 of 134 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, 2018 to 2020
- 2018
- 2020
- Claims for drugs CMS names
- 2018: 452020: 499%
Drugs named by CMS: 4 in 2020, 3 in 2018.
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. Ryan Rahee Yoon takes part in Medicare
Dr. Yoon 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. Ryan Rahee Yoon received $19 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Yoon from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. CooperSurgical, Inc. paid the most, $19.
Companies that paid Dr. Yoon the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ryan Rahee Yoon graduated from University of California, San Diego School of Medicine
Dr. Yoon graduated from University of California, San Diego School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan Rahee Yoon'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 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. Ryan Rahee Yoon
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. Ryan Rahee Yoon's NPI number?
Dr. Ryan Rahee Yoon's NPI number is 1942435144. It was assigned on May 18, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan Rahee Yoon?
Dr. Ryan Rahee Yoon is a family medicine physician in Chula Vista, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Ryan Rahee Yoon practice?
Dr. Yoon practices at 678 3rd Ave, Chula Vista, CA 91910. Dr. Yoon's primary practice is San Ysidro Health Chula Vista in Chula Vista, California. Dmand AI also links Dr. Yoon to 2 medical groups and 1 group practice or clinic.
What is Dr. Ryan Rahee Yoon's office phone number?
The practice phone on file for Dr. Yoon is (619) 662-4100.
What is Dr. Ryan Rahee Yoon's medical license number?
Dr. Yoon holds California license A114600.
Which hospitals is Dr. Ryan Rahee Yoon affiliated with?
Dr. Yoon is affiliated with Scripps Mercy Hospital San Diego.
What medical group is Dr. Ryan Rahee Yoon part of?
Dr. Yoon is linked to San Ysidro Health. Dmand AI links Dr. Yoon to 2 more medical groups.
Does Dr. Ryan Rahee Yoon accept Medicare?
Yes. CMS data shows Dr. Yoon billed Medicare for 300 services in 2024, and Dr. Yoon accepts Medicare assignment.
How many Medicare patients does Dr. Ryan Rahee Yoon see?
CMS counts 127 Medicare patients who saw Dr. Yoon in 2024, with an average age of 73.
What services does Dr. Ryan Rahee Yoon bill to Medicare?
In 2024, Dr. Yoon's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
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Where did Dr. Ryan Rahee Yoon go to medical school?
Dr. Yoon graduated from University of California, San Diego School of Medicine in 2009.
What drugs does Dr. Ryan Rahee Yoon prescribe most?
In 2020 Medicare Part D data, Dr. Yoon's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Losartan Potassium.
Has Dr. Ryan Rahee Yoon received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Yoon from 1 company from 2022 to 2022. The largest total came from CooperSurgical, Inc.
How long has Dr. Ryan Rahee Yoon been practicing?
Dr. Yoon graduated from medical school in 2009, 17 years ago.
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