Dr. Thomas K. Ryu, DO
- Medicare services, 2023
- 242
- Part D claims, 2024
- 20
- Industry payments
- $65
- Affiliated sites
- 3
- Medical groups
- 2
- Practice address
- 23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653
- Practice phone
- Call (949) 458-2026
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Saddleback Pain and Surgical Center
Surgery Center - Medicare-Certified · Laguna Hills, California
Find Dr. Ryu'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. Thomas K. Ryu is an emergency medical services (emergency medicine) physician in Laguna Hills, California
Dr. Ryu practices at Saddleback Pain and Surgical Center in Laguna Hills, California.
Dr. Ryu's NPI, 1164477410, was assigned on May 24, 2006. Dr. Ryu graduated from College of Osteo Med of the Pacific at Pomona in 1983. Dr. Ryu holds California license 20A5251.
- NPI
- 1164477410NPI Registry (opens in a new tab)
- NPI enumeration date
- May 24, 2006
- NPI status
- Active
- Practice phone
- (949) 458-2026
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas K. Ryu practices at Saddleback Pain and Surgical Center in Laguna Hills, California
Dr. Ryu's primary practice is Saddleback Pain and Surgical Center, at 23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653. The practice phone is (949) 458-2026.
- Saddleback Pain and Surgical Center23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653Phone(949) 458-2026
Source: Dmand AI Affiliation Data
Dr. Thomas K. Ryu is affiliated with 3 sites of care and 2 medical groups
Dr. Ryu's primary practice is Saddleback Pain and Surgical Center in Laguna Hills, California. The medical group on file is Sand Canyon Urgent Care. Dmand AI also links Dr. Ryu to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas K. Ryu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryu practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saddleback Pain and Surgical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas K. Ryu is one of 197 emergency medical services (emergency medicine) physicians in California
Emergency medical services is Dr. Ryu's primary specialty in the NPI Registry, under taxonomy code 207PE0004X. Dr. Ryu is licensed in California.
Specialties and state licenses
- Emergency medical services (emergency medicine), CaliforniaPrimary
Emergency medical services (emergency medicine) physicians near Dr. Ryu
Counts of emergency medical services (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. Thomas K. Ryu billed Medicare for 242 services in 2023
CMS data shows 242 Medicare services from Dr. Ryu across 4 procedure codes in 2023, all of them office visits. Medicare paid $20,629 for them. Every service was in an office.
Dr. Ryu's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1272023: 24291%
Dr. Ryu compared with the California median for emergency medical services (emergency medicine) physicians, 2023
- Dr. Ryu
- California median
- Medicare services
- 242vs 240Close to median
- Part D claims
- 162vs 8493% above
Medians across 192 emergency medical services (emergency medicine) physicians in California with Dmand AI profiles that report each measure.
Dr. Ryu's most billed Medicare procedure codes, 2023
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. Ryu and other emergency medical services (emergency medicine) physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas K. Ryu's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Ryu's median patient age at 74, with 65% women.
Dr. Ryu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Thomas K. Ryu wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Ryu wrote 20 Medicare Part D claims for 12 patients. 95% of them were for generic drugs. They cover 6 drugs, with $1,757 in total drug cost. In 2022, CMS named 90 claims across 3 drugs.
Dr. Ryu's Part D claims by kind of drug, 2024
- Generic19 claims95%
- Brand-name and other1 claims5%
Dr. Ryu's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 902023: 16280%
Drugs named by CMS: 6 in 2023, 3 in 2022.
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
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Dr. Thomas K. Ryu received $65 in industry payments from 2016 to 2018
CMS Open Payments shows 3 general payments to Dr. Ryu from 2 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Sanofi Pasteur Inc. paid the most, $39.
General payments to Dr. Ryu by program year, 2016 to 2018
Companies that paid Dr. Ryu the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas K. Ryu graduated from College of Osteo Med of the Pacific at Pomona
Dr. Ryu graduated from College of Osteo Med of the Pacific at Pomona in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Thomas K. Ryu'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 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 Data |
| 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) |
| 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. Thomas K. Ryu
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. Thomas K. Ryu's NPI number?
Dr. Thomas K. Ryu's NPI number is 1164477410. It was assigned on May 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas K. Ryu?
Dr. Thomas K. Ryu is an emergency medical services (emergency medicine) physician in Laguna Hills, California. The primary specialty in the NPI Registry is Emergency Medical Services (Emergency Medicine) Physician (taxonomy code 207PE0004X).
Where does Dr. Thomas K. Ryu practice?
Dr. Ryu practices at 23521 Paseo De Valencia, Suite 204, Laguna Hills, CA 92653. Dr. Ryu's primary practice is Saddleback Pain and Surgical Center in Laguna Hills, California. Dmand AI also links Dr. Ryu to 2 group practices and clinics and 1 medical group.
What is Dr. Thomas K. Ryu's office phone number?
The practice phone on file for Dr. Ryu is (949) 458-2026.
What is Dr. Thomas K. Ryu's medical license number?
Dr. Ryu holds California license 20A5251.
What medical group is Dr. Thomas K. Ryu part of?
Dr. Ryu is linked to Sand Canyon Urgent Care. Dmand AI links Dr. Ryu to 1 more medical group.
Does Dr. Thomas K. Ryu accept Medicare?
Yes. CMS data shows Dr. Ryu billed Medicare for 242 services in 2023.
What services does Dr. Thomas K. Ryu bill to Medicare?
In 2023, Dr. Ryu's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and office visit, established patient (99214).
Where did Dr. Thomas K. Ryu go to medical school?
Dr. Ryu graduated from College of Osteo Med of the Pacific at Pomona in 1983.
What drugs does Dr. Thomas K. Ryu prescribe most?
In 2023 Medicare Part D data, Dr. Ryu's most prescribed drugs by claims were Azithromycin, Cephalexin and Amoxicillin-Clavulanate Potass.
Has Dr. Thomas K. Ryu received payments from drug or device companies?
CMS Open Payments shows $65 in general payments to Dr. Ryu from 2 companies from 2016 to 2018. The largest total came from Sanofi Pasteur Inc.
How long has Dr. Thomas K. Ryu been practicing?
Dr. Ryu graduated from medical school in 1983, 43 years ago.
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