Karen Woo
- Medicare services, 2024
- 1,110
- Medicare patients, 2024
- 556
- Part D claims, 2024
- 40
- Publications
- 7
- MIPS score, 2024
- 97
- Practice address
- 200 Medical Plz, Los Angeles, CA 90024
- Practice phone
- Call (310) 794-9206
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Peter Morton UCLA Medical Building
Los Angeles, California
Find Karen Woo'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.
Karen Woo is a vascular surgeon in Los Angeles, California
Karen Woo practices at Peter Morton UCLA Medical Building in Los Angeles, California.
Karen Woo's NPI, 1285889923, was assigned on November 21, 2008. Karen Woo graduated from Joe R. & Teresa Lozano Long School of Medicine in 2001. Karen Woo holds California license A81758.
- NPI
- 1285889923NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830245521
- NPI enumeration date
- November 21, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (310) 794-9206
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen Woo practices at Peter Morton UCLA Medical Building in Los Angeles, California
Karen Woo's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.
- Peter Morton UCLA Medical Building200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Karen Woo is affiliated with 5 sites of care and 2 medical groups
Karen Woo's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Karen Woo is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is Harbor-UCLA Medical Center. Dmand AI also links Karen Woo to 1 more hospital, 1 group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Karen Woo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Woo practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Peter Morton UCLA Medical Building | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen Woo is one of 532 vascular surgeons in California
Vascular surgery is Karen Woo's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Karen Woo is board certified in vascular surgery by the American Board of Surgery. Karen Woo is licensed in California.
Specialties and state licenses
- Vascular surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists arterial blot clot /embolism, blood vessel access for dialysis, chronic skin ulcer, leg revascularization, peripheral vascular disease, varicose veins and varicose vein treatment among the conditions Karen Woo treats.
Vascular surgeons near Karen Woo
Counts of vascular surgeons 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
Karen Woo billed Medicare for 1,110 services in 2024
CMS data shows 1,110 Medicare services from Karen Woo across 16 procedure codes in 2024, for 556 Medicare patients. Medicare paid $109,635 for them.
Karen Woo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5022024: 5102%
- Surgery
- 2023: 2432024: 30325%
- Office and hospital visits
- 2023: 3362024: 29712%
Where Karen Woo's Medicare services took place, 2024
- In an office61355%
- In a facility49745%
Karen Woo compared with the California median for vascular surgeons, 2024
- Karen Woo
- California median
- Medicare services
- 1,110vs 60982% above
- Medicare patients
- 556vs 2722.0 times
- Part D claims
- 12vs 5578% below
Medians across 499 vascular surgeons in California with Dmand AI profiles that report each measure.
Karen Woo'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.
Need commercial claims for Karen Woo?
Medicare shows one payer. Book a meeting to get commercial claims data for Karen Woo and other vascular surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Karen Woo treated 556 Medicare patients in 2024, average age 75
CMS counts 556 Medicare patients who saw Karen Woo in 2024. The largest group is 75 to 84, with 223 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 3.13, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Karen Woo's median patient age at 66, with 41% women.
Karen Woo's Medicare patients by age, 2024
Karen Woo's Medicare patients by sex, 2024
- Women26948%
- Men28752%
Chronic conditions among Karen Woo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Ischemic heart disease49%
- Diabetes47%
- Chronic kidney disease42%
- Heart failure33%
- Mood disorders29%
Share of Medicare patients with each condition. A patient can have several.
Karen Woo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Karen Woo wrote 40 Medicare Part D claims in 2024
In 2024, Karen Woo wrote 40 Medicare Part D claims for 24 patients. 63% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $5,673 in total drug cost.
Karen Woo's Part D claims by kind of drug, 2024
- Generic25 claims63%
- Brand-name15 claims38%
Karen Woo'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.
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
Karen Woo scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Karen Woo for performance year 2024, reported as part of a group. Karen Woo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Karen Woo as offering telehealth. CMS counts 238 procedures of removal of tissue by Karen Woo, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Karen Woo's MIPS scores, performance year 2024
- 97of 100Final score
- 83.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Karen Woo ranks in Medicare procedure volume
- Removal of tissue
- 93rd percentile238 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)
Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Karen Woo has 7 publications on record
Dmand AI links 7 papers to Karen Woo in 2015. Karen Woo's most frequent co-authors are Carlos Fares Bechara, MD, Jean Bismuth, MD and Marlene Grenon, MD.
Karen Woo's most frequent co-authors
- Carlos Fares Bechara, MD1 shared paper
- Jean Bismuth, MD1 shared paper
- Marlene Grenon, MD1 shared paper
Recent publications by Karen Woo
See who Karen Woo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Karen Woo works with, so you can find a warm path to the right vascular surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Karen Woo received $4,870 in industry payments from 2016 to 2025
CMS Open Payments shows 42 general payments to Karen Woo from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 54% of the total. Laminate Medical Technologies inc. paid the most, $2,250.
General payments to Karen Woo by program year, 2016 to 2025
General payments to Karen Woo by kind, 2016 to 2025
- Food and beverage$2,62054%
- Consulting fees$2,25046%
Companies that paid Karen Woo the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Karen Woo graduated from Joe R. & Teresa Lozano Long School of Medicine
Karen Woo graduated from Joe R. & Teresa Lozano Long School of Medicine in 2001.
- Medical school
- Board certified in vascular surgery
Source: Dmand AI Professional Profile Data
Karen Woo accepts plans from 14 insurance carriers
Karen Woo is in network with 14 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +6 more carriersWith a free account
Plan types Karen Woo accepts, by number of carriers
- PPO9
- HMO7
- Medicare6
- EPO3
- POS2
Source: Dmand AI Insurance Network Data
Sources for Karen Woo'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 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 Karen Woo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Woo's NPI number?
Karen Woo's NPI number is 1285889923. It was assigned on November 21, 2008, and it is active in the NPI Registry.
What does Karen Woo specialize in?
Karen Woo is a vascular surgeon in Los Angeles, California. The primary specialty in the NPI Registry is Vascular Surgery Physician (taxonomy code 2086S0129X).
Where does Karen Woo practice?
Karen Woo practices at 200 Medical Plz, Los Angeles, CA 90024. Karen Woo's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Karen Woo to 1 hospital, 1 group practice or clinic, 1 home health agency and 1 medical group.
What is Karen Woo's office phone number?
The practice phone on file for Karen Woo is (310) 794-9206.
What is Karen Woo's medical license number?
Karen Woo holds California license A81758.
Which hospitals is Karen Woo affiliated with?
Karen Woo is affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Karen Woo to 1 more hospital.
What medical group is Karen Woo part of?
Karen Woo is linked to Harbor-UCLA Medical Center. Dmand AI links Karen Woo to 1 more medical group.
Does Karen Woo accept Medicare?
Yes. CMS data shows Karen Woo billed Medicare for 1,110 services in 2024, and Karen Woo accepts Medicare assignment.
Does Karen Woo offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Karen Woo as offering telehealth services.
What is Karen Woo's MIPS score?
Karen Woo's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Karen Woo see?
CMS counts 556 Medicare patients who saw Karen Woo in 2024, with an average age of 75.
Is Karen Woo board certified?
Yes. Karen Woo is board certified in vascular surgery by the American Board of Surgery.
What services does Karen Woo bill to Medicare?
In 2024, Karen Woo's most billed Medicare services were office visit, established patient (99214), surgery: skin and soft tissue (11045) and surgery: skin and soft tissue (11042).
Where did Karen Woo go to medical school?
Karen Woo graduated from Joe R. & Teresa Lozano Long School of Medicine in 2001.
What drugs does Karen Woo prescribe most?
In 2024 Medicare Part D data, Karen Woo's most prescribed drugs by claims were Santyl.
Has Karen Woo received payments from drug or device companies?
CMS Open Payments shows $4,870 in general payments to Karen Woo from 12 companies from 2016 to 2025. The largest total came from Laminate Medical Technologies inc.
How long has Karen Woo been practicing?
Karen Woo graduated from medical school in 2001, 25 years ago.
Does Karen Woo do research?
Dmand AI links 7 publications to Karen Woo.
Who does Karen Woo publish with?
Karen Woo's most frequent co-authors are Carlos Fares Bechara, MD (1 shared paper), Jean Bismuth, MD (1 shared paper) and Marlene Grenon, MD (1 shared paper).
What insurance does Karen Woo accept?
Karen Woo is in network with 14 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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