Christopher Xiao
Otolaryngology Physician · Santa Cruz, CA
Christopher Xiao is an otolaryngology physician with a practice address in Santa Cruz, California, and NPI 1124480736, issued on Mar 23, 2016. Check the license (California A153893, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher Xiao
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- A153893 CA
Self-reported in NPPES; status is on the state search - Practice location
- 550 Water St Ste A, Santa Cruz, CA 95060
- Phone
- (831) 476-4414
- Enumerated
- Mar 23, 2016
- Record last updated
- Feb 10, 2025
- Fax
- (831) 476-0264
- Medicare enrollment
- Enrolled (PECOS I20190506001419); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 550 Water St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Ersoff, AUDAudiologist1104272657
- Charie Evans, PA-CPhysician Assistant1265775340
- Hannah Farquharson, M.D.Family Medicine Physician1659437838
- Michael Hajek, MDOtolaryngology Physician1114456639
- Ruth Kaspar, AUDAudiologist1871631853
- Naomi Legate, NPNurse Practitioner1679827174
Verify Christopher Xiao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A153893Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average otolaryngology physician in 2024
682 Medicare Part D claims for 244 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate232 claims
- Azelastine Hcl137 claims
- Ipratropium Bromide76 claims
- Omeprazole41 claims
- Clotrimazole36 claims
- Neomycin-Polymyxin-Hc28 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.
The MIPS final score for 2023 (Medicare payment program): 87.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $355.80
17 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Bass Medical GroupFreedom, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Xiao among 1,212 otolaryngology physician records in California
Christopher Xiao is one of 1,212 otolaryngology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 84% of them.
- NPI issued2016 · 84% of these records are older, 14% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2016 · median 2004 among the 818 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Santa Cruz → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Michael Hajek, MDSanta Cruz, CA 950601114456639
- Douglas Hetzler, M.D.Santa Cruz, CA 950621801876701
- Paul Krause, M.D.Santa Cruz, CA 950621356424329
- Todd Dray, MDSanta Clara, CA 950511083791917
- Michael Friduss, MDSanta Clara, CA 950511265519193
- J. Richard Gaskill, MDSanta Clara, CA 950511053498998
- Richard Gunsalus, MDSanta Clara, CA 950511700963659
- Harry Hwang, M.D.Santa Clara, CA 950511487872859
Common questions
What is Christopher Xiao's NPI number?
Christopher Xiao's National Provider Identifier (NPI) is 1124480736, issued on Mar 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Xiao located?
The NPPES record lists a practice address at 550 Water St Ste A, Santa Cruz, CA, 95060. Phone: (831) 476-4414. Providers update this record themselves, so call before visiting.
How can I verify Christopher Xiao's license?
NPPES lists California license number A153893, 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.
How much does Christopher Xiao prescribe under Medicare Part D?
In 2024, Christopher Xiao had 682 Medicare Part D claims for 244 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Christopher Xiao's MIPS final score?
The 2023 MIPS final score is 87.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.