J Community Hosp Intern Med Perspect
Dr. Michael Sungwon Yoo, MD
NPI1669640934PAC ID4688852676
- Medicare services, 2020
- 23
- Part D claims, 2024
- 1,187
- Publications
- 3
- Hospital affiliations
- 2
- Industry payments
- $26
- Practice address
- 401 Bicentennial Way, Santa Rosa, CA 95403
- Practice phone
- Call (707) 571-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yoo's professional email, personal email and mobile number
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Dr. Michael Sungwon Yoo is an internist in Santa Rosa, California
Dr. Yoo practices at Santa Rosa Medical Center in Santa Rosa, California, part of Kaiser Permanente.
Dr. Yoo's NPI, 1669640934, was assigned on February 20, 2008. Dr. Yoo graduated from Emory School of Medicine in 2007. Dr. Yoo's Connecticut license number on file is 049651.
NPI and contact details
- NPI
- 1669640934NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688852676
- NPI enumeration date
- February 20, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 571-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Sungwon Yoo practices at Santa Rosa Medical Center in Santa Rosa, California
Dr. Yoo's primary practice is Santa Rosa Medical Center, at 401 Bicentennial Way, Santa Rosa, CA 95403 in Sonoma County. The practice phone is (707) 571-4000.
- Santa Rosa Medical Center401 Bicentennial Way, Santa Rosa, CA 95403 · Sonoma CountyPhone(707) 571-4000
Source: Dmand AI Affiliation Data
Dr. Michael Sungwon Yoo is affiliated with 3 sites of care and 1 medical group
Dr. Yoo's primary practice is Santa Rosa Medical Center in Santa Rosa, California, part of Kaiser Permanente. Dr. Yoo is also affiliated with Yale New Haven Hospital. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Yoo to 1 more skilled nursing facility, named with a free account.
Yale New Haven HospitalThe Permanente Medical Group, Inc.1 skilled nursing facilityName with a free account
See all 4 affiliations for Dr. YooSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Sungwon Yoo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yoo practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Rosa Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Michael Sungwon Yoo is one of 16,751 internists in California
Internal medicine is Dr. Yoo's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Yoo is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Yoo's licenses on file in 2 states: Connecticut and California.
Specialties and state licenses
- Internal medicine, ConnecticutPrimary
- California license
Clinical focus
Dmand AI lists mini-stroke (TIA) and stroke among the conditions Dr. Yoo treats.
Internists near Dr. Yoo
Counts of internists 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. Michael Sungwon Yoo billed Medicare for 23 services in 2020
CMS data shows 23 Medicare services from Dr. Yoo across 1 procedure code in 2020. Medicare paid $1,406 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202023
Paid by Medicare$1,406
Procedure codes1
Dr. Yoo's Medicare services by type, 2017 to 2020
- 2017
- 2020
- Office and hospital visits
- 2017: 322020: 2328%
Dr. Yoo compared with the California median for internists, 2020
- Dr. Yoo
- California median
- Medicare services
- 23vs 36194% below
- Part D claims
- 673vs 42160% above
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Yoo's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Yoo?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yoo and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Sungwon Yoo's patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Yoo's median patient age at 81, with 60% women.
Dr. Yoo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Michael Sungwon Yoo wrote 1,187 Medicare Part D claims in 2024
In 2024, Dr. Yoo wrote 1,187 Medicare Part D claims for 164 patients. 87% of them were for generic drugs. CMS names the drug for 673 of them, across 33 drugs with 11 or more claims each, at $30,865 in total drug cost. In 2023, CMS named 139 claims across 8 drugs.
Part D claims, 20241,187
Drugs named by CMS33
Total drug cost$30,865
Part D patients164
Dr. Yoo's Part D claims by kind of drug, 2024
- Generic1,029 claims87%
- Brand-name and other158 claims13%
Dr. Yoo'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. Yoo's Part D claims, 2024
- Opioids5%56 of 1,187 claims
- Antibiotics3%41 of 1,187 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: 1392024: 673384%
Drugs named by CMS: 33 in 2024, 8 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. Michael Sungwon Yoo takes part in Medicare
Dr. Yoo 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. Michael Sungwon Yoo has 3 publications on record
Dmand AI links 3 papers to Dr. Yoo, published from 2020 to 2022. Dr. Yoo's most frequent co-authors are Helen L. Hammer, MD, Cheryl E. Green, MD and Colin Thomas Iberti, MD.
Papers3
Years published2020 to 2022
Dr. Yoo's papers by year, 2020 to 2022
Dr. Yoo's most frequent co-authors
- Helen L. Hammer, MD2 shared papers
- Cheryl E. Green, MD1 shared paper
- Colin Thomas Iberti, MD1 shared paper
Recent publications by Dr. Yoo
JAMA Netw Open
CaliforniaFluid TherapyHeart Failure
Antibodies, Monoclonal, HumanizedAnticoagulantsAntifibrinolytic Agents
See who Dr. Yoo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yoo works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Michael Sungwon Yoo received $26 in industry payments from 2016 to 2017
CMS Open Payments shows 2 general payments to Dr. Yoo from 1 drug or device company from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $26.
General payments to Dr. Yoo by program year, 2016 to 2017
Companies that paid Dr. Yoo the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Sungwon Yoo graduated from Emory School of Medicine
Dr. Yoo graduated from Emory School of Medicine in 2007.
- Medical school
- Board certified in internal medicine
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Michael Sungwon Yoo accepts plans from 2 insurance carriers
Dr. Yoo is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Yoo accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Michael Sungwon Yoo'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Michael Sungwon Yoo
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. Michael Sungwon Yoo's NPI number?
Dr. Michael Sungwon Yoo's NPI number is 1669640934. It was assigned on February 20, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Sungwon Yoo?
Dr. Michael Sungwon Yoo is an internist in Santa Rosa, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Sungwon Yoo practice?
Dr. Yoo practices at 401 Bicentennial Way, Santa Rosa, CA 95403. Dr. Yoo's primary practice is Santa Rosa Medical Center in Santa Rosa, California, part of Kaiser Permanente. Dmand AI also links Dr. Yoo to 1 skilled nursing facility.
What is Dr. Michael Sungwon Yoo's office phone number?
The practice phone on file for Dr. Yoo is (707) 571-4000.
What is Dr. Michael Sungwon Yoo's medical license number?
Dr. Yoo's Connecticut license number on file is 049651, one of the licenses on file in 2 states.
Which states has Dr. Michael Sungwon Yoo been licensed in?
Dmand AI has state licenses on file for Dr. Yoo in Connecticut (2011 to 2015) and California (2011 to 2027).
Which hospitals is Dr. Michael Sungwon Yoo affiliated with?
Dr. Yoo practices at Santa Rosa Medical Center in Santa Rosa, California. Dr. Yoo is also affiliated with Yale New Haven Hospital.
What medical group is Dr. Michael Sungwon Yoo part of?
Dr. Yoo is linked to The Permanente Medical Group, Inc.
Does Dr. Michael Sungwon Yoo accept Medicare?
Yes. CMS data shows Dr. Yoo billed Medicare for 23 services in 2020, and Dr. Yoo accepts Medicare assignment.
Is Dr. Michael Sungwon Yoo board certified?
Yes. Dr. Yoo is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Michael Sungwon Yoo bill to Medicare?
In 2020, Dr. Yoo's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Michael Sungwon Yoo go to medical school?
Dr. Yoo graduated from Emory School of Medicine in 2007.
What drugs does Dr. Michael Sungwon Yoo prescribe most?
In 2024 Medicare Part D data, Dr. Yoo's most prescribed drugs by claims were Atorvastatin Calcium, Gabapentin and Furosemide.
Has Dr. Michael Sungwon Yoo received payments from drug or device companies?
CMS Open Payments shows $26 in general payments to Dr. Yoo from 1 company from 2016 to 2017. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Michael Sungwon Yoo been practicing?
Dr. Yoo graduated from medical school in 2007, 19 years ago.
Does Dr. Michael Sungwon Yoo do research?
Dmand AI links 3 publications to Dr. Yoo, published from 2020 to 2022.
Who does Dr. Michael Sungwon Yoo publish with?
Dr. Yoo's most frequent co-authors are Helen L. Hammer, MD (2 shared papers), Cheryl E. Green, MD (1 shared paper) and Colin Thomas Iberti, MD (1 shared paper).
What insurance does Dr. Michael Sungwon Yoo accept?
Dr. Yoo is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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