James Guolin Wu
- Medicare services, 2024
- 18,094
- Medicare patients, 2024
- 1,029
- Part D claims, 2024
- 1,001
- MIPS score, 2024
- 75
- Industry payments
- $1,738
- Practice address
- 933 S Sunset Ave, West Covina, CA 91790
- Practice phone
- Call (626) 960-5464
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richard H Chu MD Inc
West Covina, California
Find James Wu's professional email, personal email and mobile number
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James Guolin Wu is a dermatologist in West Covina, California
James Wu practices at Richard H Chu MD Inc in West Covina, California.
James Wu's NPI, 1851711345, was assigned on April 23, 2014. James Wu graduated from R Franklin University of Med & Sci/Chicago Medical School in 2014. James Wu holds California license A154528.
- NPI
- 1851711345NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860742582
- NPI enumeration date
- April 23, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (626) 960-5464
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
James Guolin Wu practices at Richard H Chu MD Inc in West Covina, California
James Wu's primary practice is Richard H Chu MD Inc, at 933 S Sunset Ave, West Covina, CA 91790 in Los Angeles County. The practice phone is (626) 960-5464.
- Richard H Chu MD Inc933 S Sunset Ave, West Covina, CA 91790 · Los Angeles CountyPhone(626) 960-5464
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
James Guolin Wu is affiliated with 4 sites of care and 3 medical groups
James Wu's primary practice is Richard H Chu MD Inc in West Covina, California. The medical group on file is W Dermatology. Dmand AI also links James Wu to 3 more group practices and clinics and 2 medical groups, 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 James Guolin Wu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Wu practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richard H Chu MD Inc | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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James Guolin Wu is one of 1,910 dermatologists in California
Dermatology is James Wu's primary specialty in the NPI Registry, under taxonomy code 207N00000X. James Wu is licensed in California.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
Dermatologists near James Wu
Counts of dermatologists 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
James Guolin Wu billed Medicare for 18,094 services in 2024
CMS data shows 18,094 Medicare services from James Wu across 50 procedure codes in 2024, for 1,029 Medicare patients. Medicare paid $1,960,815 for them. Every service was in an office.
James Wu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3,5812024: 5,31949%
- Surgery
- 2023: 3,4702024: 5,18649%
- Imaging
- 2023: 3,7892024: 4,97931%
- Lab and pathology
- 2023: 1,2532024: 1,78242%
- Other services
- 2023: 4252024: 29231%
- Drugs given in the office
- 2023: 2422024: 27413%
- Tests and treatments
- 2023: 1732024: 26251%
James Wu compared with the California median for dermatologists, 2024
- James Wu
- California median
- Medicare services
- 18,094vs 1,75010.3 times
- Medicare patients
- 1,029vs 3772.7 times
- Part D claims
- 840vs 3672.3 times
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
James Wu'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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Medicare shows one payer. Book a meeting to get commercial claims data for James Wu and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
James Guolin Wu treated 1,029 Medicare patients in 2024, average age 76
CMS counts 1,029 Medicare patients who saw James Wu in 2024. The largest group is 75 to 84, with 433 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.11, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts James Wu's median patient age at 70, with 50% women.
James Wu's Medicare patients by age, 2024
James Wu's Medicare patients by sex, 2024
- Women51150%
- Men51850%
Chronic conditions among James Wu's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis45%
- Ischemic heart disease26%
- Diabetes23%
- Atrial fibrillation19%
- Chronic kidney disease19%
- Anxiety18%
Share of Medicare patients with each condition. A patient can have several.
James Wu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
James Guolin Wu wrote 1,001 Medicare Part D claims in 2024
In 2024, James Wu wrote 1,001 Medicare Part D claims for 386 patients. 89% of them were for generic drugs. CMS names the drug for 840 of them, across 27 drugs with 11 or more claims each, at $400,846 in total drug cost. In 2023, CMS named 489 claims across 15 drugs.
James Wu's Part D claims by kind of drug, 2024
- Generic895 claims89%
- Brand-name106 claims11%
James Wu'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 James Wu's Part D claims, 2024
- Antibiotics9%93 of 1,001 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: 4892024: 84072%
Drugs named by CMS: 27 in 2024, 15 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
James Guolin Wu scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for James Wu for performance year 2024, reported individually. James Wu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists James Wu as offering telehealth. CMS counts 2,653 procedures of removal of skin lesions by James Wu, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- MIPS final score, 2024
- 75 of 100
Where James Wu ranks in Medicare procedure volume
- Removal of skin lesions
- 99th percentile2,653 procedures
- Skin biopsy
- 99th percentile1,497 procedures
- Melanoma (skin cancer) excision
- 99th percentile333 procedures
- Removal of skin cancer
- 27th percentile140 procedures
- Removal or shaving of skin growth
- 70th percentile18 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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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James Guolin Wu received $1,738 in industry payments from 2018 to 2025
CMS Open Payments shows 59 general payments to James Wu from 19 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 74% of the total. Galderma Laboratories, L.P. paid the most, $498.
General payments to James Wu by program year, 2018 to 2025
General payments to James Wu by kind, 2018 to 2025
- Food and beverage$1,28874%
- Speaker and faculty fees$45026%
Companies that paid James Wu the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
James Guolin Wu graduated from R Franklin University of Med & Sci/Chicago Medical School
James Wu graduated from R Franklin University of Med & Sci/Chicago Medical School in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for James Guolin Wu'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) |
| 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 James Guolin Wu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James Guolin Wu's NPI number?
James Guolin Wu's NPI number is 1851711345. It was assigned on April 23, 2014, and it is active in the NPI Registry.
What does James Guolin Wu specialize in?
James Guolin Wu is a dermatologist in West Covina, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does James Guolin Wu practice?
James Wu practices at 933 S Sunset Ave, West Covina, CA 91790. James Wu's primary practice is Richard H Chu MD Inc in West Covina, California. Dmand AI also links James Wu to 3 group practices and clinics and 2 medical groups.
What is James Guolin Wu's office phone number?
The practice phone on file for James Wu is (626) 960-5464.
What is James Guolin Wu's medical license number?
James Wu holds California license A154528.
What medical group is James Guolin Wu part of?
James Wu is linked to W Dermatology. Dmand AI links James Wu to 2 more medical groups.
Does James Guolin Wu accept Medicare?
Yes. CMS data shows James Wu billed Medicare for 18,094 services in 2024, and James Wu accepts Medicare assignment.
Does James Guolin Wu offer telehealth?
Yes. The CMS Doctors and Clinicians file lists James Wu as offering telehealth services.
What is James Guolin Wu's MIPS score?
James Wu's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does James Guolin Wu see?
CMS counts 1,029 Medicare patients who saw James Wu in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does James Guolin Wu bill to Medicare?
In 2024, James Wu's most billed Medicare services were office visit, established patient (99213), radiation oncology (77401) and lab and pathology test (88305).
Where did James Guolin Wu go to medical school?
James Wu graduated from R Franklin University of Med & Sci/Chicago Medical School in 2014.
What drugs does James Guolin Wu prescribe most?
In 2024 Medicare Part D data, James Wu's most prescribed drugs by claims were Triamcinolone Acetonide, Clobetasol Propionate and Ketoconazole.
Has James Guolin Wu received payments from drug or device companies?
CMS Open Payments shows $1,738 in general payments to James Wu from 19 companies from 2018 to 2025. The largest total came from Galderma Laboratories, L.P.
How long has James Guolin Wu been practicing?
James Wu graduated from medical school in 2014, 12 years ago.
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