Dr. Thomas Myong Yun, MD
- Part D claims, 2024
- 343
- Industry payments
- $110
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 2
- Practice address
- 424 Decatur SE St, Atlanta, GA 30312
- Practice phone
- Call (404) 880-3550
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Saint Joseph's Mercy Care Services Inc
Atlanta, Georgia
Find Dr. Yun'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 Myong Yun is a psychiatrist in Atlanta, Georgia
Dr. Yun practices at Saint Joseph's Mercy Care Services Inc in Atlanta, Georgia.
Dr. Yun's NPI, 1245231133, was assigned on August 2, 2005. Dr. Yun holds Georgia license 71040.
- NPI
- 1245231133NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173596921
- NPI enumeration date
- August 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (404) 880-3550
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas Myong Yun practices at Saint Joseph's Mercy Care Services Inc in Atlanta, Georgia
Dr. Yun's primary practice is Saint Joseph's Mercy Care Services Inc, at 424 Decatur SE St, Atlanta, GA 30312 in Fulton County. The practice phone is (404) 880-3550.
- Saint Joseph's Mercy Care Services Inc424 Decatur SE St, Atlanta, GA 30312 · Fulton CountyPhone(404) 880-3550
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Thomas Myong Yun is affiliated with 2 sites of care and 1 medical group
Dr. Yun's primary practice is Saint Joseph's Mercy Care Services Inc in Atlanta, Georgia. The medical group on file is Mercy Care. Dmand AI also links Dr. Yun to 1 more community health center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas Myong Yun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yun practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Saint Joseph's Mercy Care Services Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas Myong Yun is one of 929 psychiatrists in Georgia
Psychiatry is Dr. Yun's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Yun's licenses on file in 2 states: Georgia and California.
Specialties and state licenses
- Psychiatry, GeorgiaPrimary
- Addiction medicine (psychiatry and neurology), California
Psychiatrists near Dr. Yun
Counts of psychiatrists 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 Myong Yun's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Yun's median patient age at 47, with 51% women.
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 47
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Thomas Myong Yun wrote 343 Medicare Part D claims in 2024
In 2024, Dr. Yun wrote 343 Medicare Part D claims for 44 patients. 93% of them were for generic drugs. CMS names the drug for 246 of them, across 15 drugs with 11 or more claims each, at $46,417 in total drug cost. In 2023, CMS named 245 claims across 11 drugs.
Dr. Yun's Part D claims by kind of drug, 2024
- Generic320 claims93%
- Brand-name23 claims7%
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.
Drug classes CMS tracks in Dr. Yun's Part D claims, 2024
- Antipsychotics, patients 65 and over8%27 of 343 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: 2452024: 246No change
Drugs named by CMS: 15 in 2024, 11 in 2023.
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. Thomas Myong Yun takes part in Medicare
Dr. Yun 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. Thomas Myong Yun received $110 in industry payments from 2022 to 2023
CMS Open Payments shows 5 general payments to Dr. Yun from 4 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $43.
General payments to Dr. Yun by program year, 2022 to 2023
Companies that paid Dr. Yun the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thomas Myong 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 DataDmand AI Org Hierarchy Data |
| 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) |
| 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) |
| 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 Myong 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. Thomas Myong Yun's NPI number?
Dr. Thomas Myong Yun's NPI number is 1245231133. It was assigned on August 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Myong Yun?
Dr. Thomas Myong Yun is a psychiatrist in Atlanta, Georgia. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Thomas Myong Yun practice?
Dr. Yun practices at 424 Decatur SE St, Atlanta, GA 30312. Dr. Yun's primary practice is Saint Joseph's Mercy Care Services Inc in Atlanta, Georgia. Dmand AI also links Dr. Yun to 1 community health center.
What is Dr. Thomas Myong Yun's office phone number?
The practice phone on file for Dr. Yun is (404) 880-3550.
What is Dr. Thomas Myong Yun's medical license number?
Dr. Yun holds Georgia license 71040, one of the licenses on file in 2 states.
Which states has Dr. Thomas Myong Yun been licensed in?
Dmand AI has state licenses on file for Dr. Yun in Georgia and California.
What medical group is Dr. Thomas Myong Yun part of?
Dr. Yun is linked to Mercy Care.
Does Dr. Thomas Myong Yun accept Medicare?
Yes. CMS lists Dr. Yun as accepting Medicare assignment.
What drugs does Dr. Thomas Myong Yun prescribe most?
In 2024 Medicare Part D data, Dr. Yun's most prescribed drugs by claims were Olanzapine, Trazodone HCl and Sertraline HCl.
Has Dr. Thomas Myong Yun received payments from drug or device companies?
CMS Open Payments shows $110 in general payments to Dr. Yun from 4 companies from 2022 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Thomas Myong Yun been practicing?
Dr. Yun graduated from medical school in 2003, 23 years ago.
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