Dr. Charlotte Leslie Tsai, MD
- Part D claims, 2024
- 1,401
- Industry payments
- $169
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 3
- Practice address
- 500 NE Multnomah St, Portland, OR 97232
- Practice phone
- Call (503) 813-2440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Foundation Health Plan of the Northwest
Portland, Oregon
Find Dr. Tsai'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. Charlotte Leslie Tsai is a dermatologist in Portland, Oregon
Dr. Tsai practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon.
Dr. Tsai's NPI, 1427271170, was assigned on April 11, 2007. Dr. Tsai graduated from New York Medical College in 2001. Dr. Tsai holds Oregon license 152175.
- NPI
- 1427271170NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466472162
- NPI enumeration date
- April 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 813-2440
- 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)
Dr. Charlotte Leslie Tsai practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon
Dr. Tsai's primary practice is Kaiser Foundation Health Plan of the Northwest, at 500 NE Multnomah St, Portland, OR 97232 in Multnomah County. The practice phone is (503) 813-2440.
- Kaiser Foundation Health Plan of the Northwest500 NE Multnomah St, Portland, OR 97232 · Multnomah CountyPhone(503) 813-2440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Charlotte Leslie Tsai is affiliated with 2 sites of care and 1 medical group
Dr. Tsai's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. The medical group on file is Kaiser Permanente Northwest. Dmand AI also links Dr. Tsai to 1 more group practice or clinic, 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 Dr. Charlotte Leslie Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsai practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Foundation Health Plan of the Northwest | 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. Charlotte Leslie Tsai is one of 211 dermatologists in Oregon
Dermatology is Dr. Tsai's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dmand AI has Dr. Tsai's licenses on file in 3 states: Oregon, California and Washington.
Specialties and state licenses
- Dermatology, OregonPrimary
- California license
- Washington license
Dermatologists near Dr. Tsai
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
Dr. Charlotte Leslie Tsai's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Dr. Tsai's median patient age at 54, with 61% women.
Dr. Tsai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
Dr. Charlotte Leslie Tsai wrote 1,401 Medicare Part D claims in 2024
In 2024, Dr. Tsai wrote 1,401 Medicare Part D claims for 460 patients. 82% of them were for generic drugs. CMS names the drug for 1,250 of them, across 34 drugs with 11 or more claims each, at $1,179,057 in total drug cost. In 2023, CMS named 1,162 claims across 27 drugs.
Dr. Tsai's Part D claims by kind of drug, 2024
- Generic1,151 claims82%
- Brand-name250 claims18%
Dr. Tsai'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. Tsai's Part D claims, 2024
- Antibiotics6%89 of 1,401 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: 1,1622024: 1,2508%
Drugs named by CMS: 34 in 2024, 27 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. Charlotte Leslie Tsai takes part in Medicare
Dr. Tsai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Charlotte Leslie Tsai received $169 in industry payments from 2018 to 2023
CMS Open Payments shows 4 general payments to Dr. Tsai from 4 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 91% of the total. Bausch Health Americas, Inc. paid the most, $61.
General payments to Dr. Tsai by program year, 2018 to 2023
General payments to Dr. Tsai by kind, 2018 to 2023
- Food and beverage$15491%
- Education$159%
Companies that paid Dr. Tsai the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Charlotte Leslie Tsai graduated from New York Medical College
Dr. Tsai graduated from New York Medical College in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Charlotte Leslie Tsai'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 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)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 Dr. Charlotte Leslie Tsai
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. Charlotte Leslie Tsai's NPI number?
Dr. Charlotte Leslie Tsai's NPI number is 1427271170. It was assigned on April 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Charlotte Leslie Tsai?
Dr. Charlotte Leslie Tsai is a dermatologist in Portland, Oregon. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Charlotte Leslie Tsai practice?
Dr. Tsai practices at 500 NE Multnomah St, Portland, OR 97232. Dr. Tsai's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. Dmand AI also links Dr. Tsai to 1 group practice or clinic.
What is Dr. Charlotte Leslie Tsai's office phone number?
The practice phone on file for Dr. Tsai is (503) 813-2440.
What is Dr. Charlotte Leslie Tsai's medical license number?
Dr. Tsai holds Oregon license 152175, one of the licenses on file in 3 states.
Which states has Dr. Charlotte Leslie Tsai been licensed in?
Dmand AI has state licenses on file for Dr. Tsai in Oregon, California and Washington.
What medical group is Dr. Charlotte Leslie Tsai part of?
Dr. Tsai is linked to Kaiser Permanente Northwest.
Does Dr. Charlotte Leslie Tsai accept Medicare?
Yes. CMS lists Dr. Tsai as accepting Medicare assignment.
Where did Dr. Charlotte Leslie Tsai go to medical school?
Dr. Tsai graduated from New York Medical College in 2001.
What drugs does Dr. Charlotte Leslie Tsai prescribe most?
In 2024 Medicare Part D data, Dr. Tsai's most prescribed drugs by claims were Clobetasol Propionate, Fluorouracil and Triamcinolone Acetonide.
Has Dr. Charlotte Leslie Tsai received payments from drug or device companies?
CMS Open Payments shows $169 in general payments to Dr. Tsai from 4 companies from 2018 to 2023. The largest total came from Bausch Health Americas, Inc.
How long has Dr. Charlotte Leslie Tsai been practicing?
Dr. Tsai graduated from medical school in 2001, 25 years ago.
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