Dr. Ruth Hannah Yoon, MD
- Industry payments
- $795
- Affiliated sites
- 3
- Insurance carriers
- 2
- State licenses
- 5
- Year NPI issued
- 2006
- Practice address
- 10300 South Compton Ave, Los Angeles, CA 90002
- Practice phone
- Call (213) 564-4331
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Watts Healthcare (S Compton Ave)
FQHC - Main Site · Los Angeles, 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. Ruth Hannah Yoon is a pediatrician in Los Angeles, California
Dr. Yoon practices at Watts Healthcare (S Compton Ave) in Los Angeles, California.
Dr. Yoon's NPI, 1215033055, was assigned on September 16, 2006. Dr. Yoon graduated from Ewha Women's University College of Medicine in 1966. Dr. Yoon's California license number on file is A30869.
- NPI
- 1215033055NPI Registry (opens in a new tab)
- NPI enumeration date
- September 16, 2006
- NPI status
- Active
- Practice phone
- (213) 564-4331
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1966
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ruth Hannah Yoon practices at Watts Healthcare (S Compton Ave) in Los Angeles, California
Dr. Yoon's primary practice is Watts Healthcare (S Compton Ave), at 10300 South Compton Ave, Los Angeles, CA 90002. The practice phone is (213) 564-4331.
- Watts Healthcare (S Compton Ave)10300 South Compton Ave, Los Angeles, CA 90002Phone(213) 564-4331
Source: Dmand AI Affiliation Data
Dr. Ruth Hannah Yoon is affiliated with 3 sites of care
Dr. Yoon's primary practice is Watts Healthcare (S Compton Ave) in Los Angeles, California. Dmand AI also links Dr. Yoon to 1 breast imaging center and 1 community health center, each named with a free account. Dr. Yoon's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ruth Hannah 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 |
|---|---|
| Watts Healthcare (S Compton Ave) | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruth Hannah Yoon is one of 8,236 pediatricians in California
Pediatrics is Dr. Yoon's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Yoon is board certified in pediatrics by the American Board of Pediatrics. Dmand AI has Dr. Yoon's licenses on file in 5 states: California, Maine, Washington, District of Columbia and Maryland.
Specialties and state licenses
- Pediatrics, CaliforniaPrimary
- Maine license
- Washington license
- District of Columbia license
- Maryland license
Pediatricians near Dr. Yoon
Counts of pediatricians 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. Ruth Hannah Yoon's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Dr. Yoon's median patient age at 11, with 49% women.
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 11
Patient panel by sex, all payers
- Women49%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. Ruth Hannah Yoon received $795 in industry payments from 2016 to 2025
CMS Open Payments shows 33 general payments to Dr. Yoon from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Cranial Technologies, Inc paid the most, $178.
General payments to Dr. Yoon by program year, 2016 to 2025
Companies that paid Dr. Yoon the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ruth Hannah Yoon graduated from Ewha Women's University College of Medicine
Dr. Yoon graduated from Ewha Women's University College of Medicine in 1966.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Ruth Hannah Yoon accepts plans from 2 insurance carriers
Dr. Yoon is in network with 2 carriers, including LA Care and Molina. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- LA Care
- Molina
Plan types Dr. Yoon accepts, by number of carriers
- HMO2
- Medicaid1
- Medicare1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ruth Hannah 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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Ruth Hannah 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. Ruth Hannah Yoon's NPI number?
Dr. Ruth Hannah Yoon's NPI number is 1215033055. It was assigned on September 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruth Hannah Yoon?
Dr. Ruth Hannah Yoon is a pediatrician in Los Angeles, California. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Ruth Hannah Yoon practice?
Dr. Yoon practices at 10300 South Compton Ave, Los Angeles, CA 90002. Dr. Yoon's primary practice is Watts Healthcare (S Compton Ave) in Los Angeles, California. Dmand AI also links Dr. Yoon to 1 breast imaging center and 1 community health center.
What is Dr. Ruth Hannah Yoon's office phone number?
The practice phone on file for Dr. Yoon is (213) 564-4331.
What is Dr. Ruth Hannah Yoon's medical license number?
Dr. Yoon's California license number on file is A30869, one of the licenses on file in 5 states.
Which states has Dr. Ruth Hannah Yoon been licensed in?
Dmand AI has state licenses on file for Dr. Yoon in California (1977 to 2025), Maine (since 2017), Washington (1986 to 2021), District of Columbia (1976 to 2018) and Maryland (1976 to 1993).
Is Dr. Ruth Hannah Yoon board certified?
Yes. Dr. Yoon is board certified in pediatrics by the American Board of Pediatrics.
Where did Dr. Ruth Hannah Yoon go to medical school?
Dr. Yoon graduated from Ewha Women's University College of Medicine in 1966.
Has Dr. Ruth Hannah Yoon received payments from drug or device companies?
CMS Open Payments shows $795 in general payments to Dr. Yoon from 12 companies from 2016 to 2025. The largest total came from Cranial Technologies, Inc.
How long has Dr. Ruth Hannah Yoon been practicing?
Dr. Yoon graduated from medical school in 1966, 60 years ago.
What insurance does Dr. Ruth Hannah Yoon accept?
Dr. Yoon is in network with 2 carriers, including LA Care and Molina. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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