Kay Wen Chang, MD
Pediatric Otolaryngology Physician · Palo Alto, CA
Kay Wen Chang, MD is a pediatric otolaryngology physician with a practice address in Palo Alto, California, and NPI 1649318577, issued on Feb 2, 2007. Check the license (California G85741, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kay Wen Chang
- Credential
- MD
- Primary taxonomy
- Pediatric Otolaryngology Physician 207YP0228X
- License number
- G85741 CA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 497-8000
- Enumerated
- Feb 2, 2007
- Record last updated
- Apr 28, 2024
- Medicare enrollment
- Enrolled (PECOS I20070420000304); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 1992
- Entity
- Type 1 · individual
8 nearest pediatric otolaryngology physician records → All 77 in California → Look up another NPI →
Also registered at 725 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shayda Abadi, NPNurse Practitioner1316745540
- Natasha AbadillaStudent in an Organized Health Care Education/Training Program1194306928
- Alexandra Abbott, MDPediatrics Physician1760018675
- Steven Abboud, MDAnesthesiology Physician1619364908
- Ali Abdelhafiz Abdelsamea, MDPediatrics Physician1699390104
- Alireza Abdollah Shamshirsaz, M.D.Obstetrics & Gynecology Physician1881804235
Verify Kay Wen Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G85741Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $162.47
3 payments; by number, the most common kind was food and beverage; the largest payer was Cochlear Americas. The 388 providers of this specialty with any payment received $866.77 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
- Lpch Medical Group Div OF LucilePalo Alto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kay Wen Chang among 77 pediatric otolaryngology physician records in California
Kay Wen Chang, MD is one of 77 pediatric otolaryngology physician records with a practice address in California. 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 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 60% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated1992 · median 2005 among the 36 with a school on file
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207YP0228X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Otolaryngology Physician providers in California
There are 77 pediatric otolaryngology physician records in California.
All 77 in California → Every provider in Palo Alto → Pediatric Otolaryngology Physician nationwide →
The 8 pediatric otolaryngology physician records with the nearest ZIP codes
- Iram Ahmad, MDPalo Alto, CA 943041316174014
- Nada Ali, MDPalo Alto, CA 943041346605573
- Karthik Balakrishnan, MD, MPHPalo Alto, CA 943041528070844
- Andrew Birkeland, M.D.Palo Alto, CA 943041700149317
- Alan Cheng, MDPalo Alto, CA 943041760473128
- Dong Kyoo Kang, MDPalo Alto, CA 943041124073309
- Grace Kim, MDPalo Alto, CA 943041578963021
- Jocelyn Kohn, MDPalo Alto, CA 943041972997369
Common questions
What is Kay Wen Chang, MD's NPI number?
Kay Wen Chang, MD's National Provider Identifier (NPI) is 1649318577, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Kay Wen Chang, MD located?
The NPPES record lists a practice address at 725 Welch RD, Palo Alto, CA, 94304. Phone: (650) 497-8000. Providers update this record themselves, so call before visiting.
How can I verify Kay Wen Chang, MD's license?
NPPES lists California license number G85741, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.