David Hyung Won Oh

  • Los Angeles, CA
  • Hospitalist
NPI1790312601PAC ID6901280973
Medicare services, 2024
156
Medicare patients, 2024
52
Part D claims, 2024
29
MIPS score, 2024
88
Hospital affiliations
2
Practice address
757 Westwood Plaza, Los Angeles, CA 90095
Practice phone
Call (310) 825-6301
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Ronald Reagan UCLA Medical Center

Hospital · Los Angeles, California

See all 4 affiliations

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David Hyung Won Oh is a hospitalist in Los Angeles, California

David Oh practices at Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health.

David Oh's NPI, 1790312601, was assigned on March 23, 2020. David Oh graduated from Tufts University School Of Medicine in 2020. David Oh holds California license A178644.

NPI and contact details
Medicare PAC ID
6901280973
NPI enumeration date
March 23, 2020
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(310) 825-6301
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
32
Medical school graduation
2020

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

David Hyung Won Oh practices at Ronald Reagan UCLA Medical Center in Los Angeles, California

David Oh's primary practice is Ronald Reagan UCLA Medical Center, at 757 Westwood Plaza, Los Angeles, CA 90095 in Los Angeles County. The practice phone is (310) 825-6301.

Source: Dmand AI Affiliation Data

David Hyung Won Oh is affiliated with 2 sites of care and 2 medical groups

David Oh's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health. David Oh is also affiliated with UCLA Santa Monica Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links David Oh to 1 more medical group, named with a free account.

See all 4 affiliations for David Oh

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at David Hyung Won Oh's practice

Dmand AI tracks the electronic health record (EHR) system at each site where David Oh practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ronald Reagan UCLA Medical CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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David Hyung Won Oh is one of 3,186 hospitalists in California

Hospitalist is David Oh's primary specialty in the NPI Registry, under taxonomy code 208M00000X. David Oh is board certified in hospice and palliative medicine by the American Board of Internal Medicine. David Oh is licensed in California.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A178644 · 2022 to 2026 · taxonomy 208M00000X

Hospitalists near David Oh

Counts of hospitalists 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

David Hyung Won Oh billed Medicare for 156 services in 2024

CMS data shows 156 Medicare services from David Oh across 5 procedure codes in 2024, for 52 Medicare patients. Medicare paid $14,647 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024156
Medicare patients52
Paid by Medicare$14,647
Procedure codes5

David Oh compared with the California median for hospitalists, 2024

  • David Oh
  • California median
Medicare services
156vs 43064% below
Medicare patients
52vs 20174% below
Part D claims
104vs 6951% above

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

David Oh'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

David Hyung Won Oh treated 52 Medicare patients in 2024, average age 73

CMS counts 52 Medicare patients who saw David Oh in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high blood pressure, and 71% have anxiety. 54% are also on Medicaid. Their average risk score is 3.04, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts David Oh's median patient age at 58, with 47% women.

Medicare patients, 202452
Average age73
Average risk score3.04
Also on Medicaid54%

David Oh's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

David Oh's Medicare patients by sex, 2024

  • Women3262%
  • Men2038%

Chronic conditions among David Oh's Medicare patients, 2024

  1. High blood pressure75%
  2. Anxiety71%
  3. Arthritis62%
  4. High cholesterol58%
  5. Chronic kidney disease52%
  6. Mood disorders46%
  7. Alzheimer's and dementia44%
  8. Heart failure42%

Share of Medicare patients with each condition. A patient can have several.

David Oh's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 58

Patient panel by sex, all payers

  • Women47%
  • Men51%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

David Hyung Won Oh wrote 29 Medicare Part D claims in 2024

In 2024, David Oh wrote 29 Medicare Part D claims for 15 patients. 97% of them were for generic drugs. They cover 6 drugs, with $1,607 in total drug cost. In 2022, CMS named 86 claims across 4 drugs.

Part D claims, 202429
Drugs named by CMS6
Total drug cost$1,607
Part D patients15

David Oh's Part D claims by kind of drug, 2024

  • Generic28 claims97%
  • Brand-name and other1 claims3%

David Oh'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: 862023: 10421%

Drugs named by CMS: 6 in 2023, 4 in 2022.

See all prescribing by David Oh

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

David Hyung Won Oh scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for David Oh for performance year 2024, reported as part of a group. David Oh accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

David Oh's MIPS scores, performance year 2024

  • 88of 100Final score
  • 79.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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David Hyung Won Oh graduated from Tufts University School Of Medicine

David Oh graduated from Tufts University School Of Medicine in 2020.

  1. Medical schoolTufts University School Of Medicine
  2. Board certified in hospice and palliative medicineAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

David Hyung Won Oh accepts plans from 1 insurance carrier

David Oh is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • CMS Medicare

Source: Dmand AI Insurance Network Data

Sources for David Hyung Won Oh's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about David Hyung Won Oh

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is David Hyung Won Oh's NPI number?

David Hyung Won Oh's NPI number is 1790312601. It was assigned on March 23, 2020, and it is active in the NPI Registry.

What does David Hyung Won Oh specialize in?

David Hyung Won Oh is a hospitalist in Los Angeles, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does David Hyung Won Oh practice?

David Oh practices at 757 Westwood Plaza, Los Angeles, CA 90095. David Oh's primary practice is Ronald Reagan UCLA Medical Center in Los Angeles, California, part of University of California Health. Dmand AI also links David Oh to 1 medical group.

What is David Hyung Won Oh's office phone number?

The practice phone on file for David Oh is (310) 825-6301.

What is David Hyung Won Oh's medical license number?

David Oh holds California license A178644.

Which hospitals is David Hyung Won Oh affiliated with?

David Oh practices at Ronald Reagan UCLA Medical Center in Los Angeles, California. David Oh is also affiliated with UCLA Santa Monica Medical Center.

What medical group is David Hyung Won Oh part of?

David Oh is linked to The Permanente Medical Group, Inc. Dmand AI links David Oh to 1 more medical group.

Does David Hyung Won Oh accept Medicare?

Yes. CMS data shows David Oh billed Medicare for 156 services in 2024, and David Oh accepts Medicare assignment.

What is David Hyung Won Oh's MIPS score?

David Oh's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.

How many Medicare patients does David Hyung Won Oh see?

CMS counts 52 Medicare patients who saw David Oh in 2024, with an average age of 73.

Show 6 more questionsShow fewer questions

Is David Hyung Won Oh board certified?

Yes. David Oh is board certified in hospice and palliative medicine by the American Board of Internal Medicine.

What services does David Hyung Won Oh bill to Medicare?

In 2024, David Oh's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99232).

Where did David Hyung Won Oh go to medical school?

David Oh graduated from Tufts University School Of Medicine in 2020.

What drugs does David Hyung Won Oh prescribe most?

In 2023 Medicare Part D data, David Oh's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.

How long has David Hyung Won Oh been practicing?

David Oh graduated from medical school in 2020, 6 years ago.

What insurance does David Hyung Won Oh accept?

David Oh is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

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