Diane S. Chiu, MD
Dermatology Physician · Bellevue, WA
Diane S. Chiu, MD is a dermatology physician with a practice address in Bellevue, Washington, and NPI 1699736843, issued on Mar 29, 2006. Check the license (Washington MD0043597, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Diane S. Chiu
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- MD0043597 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 112TH Ave NE Ste C187, Bellevue, WA 98004
- Phone
- (425) 457-7900
- Enumerated
- Mar 29, 2006
- Record last updated
- Nov 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (425) 457-7499
- Medicaid ID
- 8411654 WA
- Medicare enrollment
- Enrolled (PECOS I20041020000974); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 384 in Washington → Look up another NPI →
Also registered at 1200 112TH Ave NE Ste C187
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Sugai, M.D.Dermatology Physician1609138718
Verify Diane S. Chiu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD0043597Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average dermatology physician in 2024
199 Medicare Part D claims for 61 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Doxycycline Hyclate47 claims
- Cephalexin21 claims
- Valacyclovir16 claims
- Hydrocodone-Acetaminophen13 claims
- Lorazepam13 claims
- Fluconazole12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,263.58
50 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Bellevue Laser And Cosmetic Center PSBellevue, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane S. Chiu among 384 dermatology physician records in Washington
Diane S. Chiu, MD is one of 384 dermatology physician records with a practice address in Washington. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1997 · median 2009 among the 275 with a school on file
- Record last updated2012 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Washington
There are 384 dermatology physician records in Washington.
All 384 in Washington → Every provider in Bellevue → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Russell Caldwell, MDBellevue, WA 980041831166404
- Keith Carlson, MDBellevue, WA 980041093749640
- Andy ChienBellevue, WA 980041104902956
- Kieu Dang, PACBellevue, WA 980041437167327
- Edward Esparza, MDBellevue, WA 980041427258797
- Stuart Garrie, M.D.Bellevue, WA 980041407854706
- Lawrence Gogenola, MDBellevue, WA 980041407953003
- Deetta Gray, M.D., FAAD, FRCPCBellevue, WA 980041790825966
Common questions
What is Diane S. Chiu, MD's NPI number?
Diane S. Chiu, MD's National Provider Identifier (NPI) is 1699736843, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane S. Chiu, MD located?
The NPPES record lists a practice address at 1200 112TH Ave NE Ste C187, Bellevue, WA, 98004. Phone: (425) 457-7900. Providers update this record themselves, so call before visiting.
How can I verify Diane S. Chiu, MD's license?
NPPES lists Washington license number MD0043597, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Diane S. Chiu, MD prescribe under Medicare Part D?
In 2024, Diane S. Chiu, MD had 199 Medicare Part D claims for 61 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.