CHRISTOPHER XIAO
NPI 1124480736
Otolaryngology in Santa Cruz, CA

Q: What is Christopher Xiao's NPI number?

The NPI number for Christopher Xiao is 1124480736. It was assigned to this individual provider in the NPPES registry on March 23, 2016.

Q: What is Christopher Xiao's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Q: When was this NPI record last updated?

The NPPES record for Christopher Xiao was last updated on February 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 23, 2016PECOS EnrolledAccepts Medicare Assignment

87.26/100

CMS Quality Rating

550 WATER ST STE A, SANTA CRUZ, CA 95060(831) 476-4414(831) 476-0264 Get Directions Write a Review

NPPES record last updated: February 10, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 10, 2025, Oct 31, 2018, Mar 23, 2016 (3 updates tracked since 2016).

On this page

About Christopher Xiao NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTOPHER XIAO (NPI 1124480736) is an individual otolaryngology provider in Santa Cruz, California, licensed in California (A153893) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS and is a graduate of Boston University School Of Medicine (2016).

NPPES Registry Identity

NPI1124480736

Entity TypeIndividualMale

Primary Taxonomy207Y00000X

Provider Legal NameCHRISTOPHER XIAO

Location Address550 WATER ST STE ASanta Cruz, CA 95060-4126

Mailing Address550 Water St Ste ASanta Cruz, CA 95060-4126 · (831) 476-4414 · Fax (831) 476-0264

Phone(831) 476-4414

Fax(831) 476-0264

Sole ProprietorNo

Medical School CMSBoston University School Of MedicineGraduated 2016

Enumeration DateMarch 23, 2016

Last NPPES UpdateFebruary 10, 20253 updates tracked since enumeration

NPPES CertifiedFebruary 10, 2025

✔ NPI 1124480736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians

Taxonomy Code207Y00000X

License✔ Licensed in CA · A153893

Definition

An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

550 WATER ST STE A, Santa Cruz, CA 95060

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher Xiao is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4789946971

PECOS Enrollment IDI20190506001419

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

1,344 services23 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

628 services14 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

611 services380 patients

Professional service for single injection of allergen 95115

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

494 services30 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

309 services309 patients

Test to assess middle ear function 92567

A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.

233 services229 patients

Removal of impacted ear wax 69210

Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.

204 services154 patients

Test for hearing various pitches using earphone 92552

This is a hearing test where earphones are worn to detect different pitch levels. Sounds of various frequencies are played, and you indicate when you hear them. This helps evaluate your hearing ability. It's safe, comfortable, and non-invasive.

137 services135 patients

Test for ability to detect and repeat spoken words with speech recognition 92556

This is a hearing test where you'll listen to spoken words through headphones and repeat them. It helps evaluate your ability to understand speech. It's a simple, non-invasive procedure that provides valuable information about your hearing health.

135 services133 patients

Comprehensive hearing and speech recognition test 92557

A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.

97 services97 patients

Placement of ear probe for computerized measurement of repeated sounds with interpretation and report 92588

This procedure involves placing a probe in your ear to measure how it responds to repeated sounds. The data is then interpreted by a computer to assess your hearing health. The findings are compiled into a report for further evaluation.

89 services89 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

74 services68 patients

Diagnostic exam of nasal passages using an endoscope 31231

A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.

68 services55 patients

Removal of inflamed or infected skin, up to 10% of body surface 11000

This procedure involves the surgical removal of inflamed or infected skin covering up to 10% of your body surface. It's done to prevent the spread of infection and promote healing. Local or general anesthesia is used to ensure comfort during the process.

65 services37 patients

Removal of impacted cerumen (one or both ears) by physician on same date of service as audiologic function testing G0268

This procedure involves a doctor removing impacted earwax (cerumen) from one or both ears. This is often done on the same day as hearing function tests. The process helps to clear the ear canal, improving hearing and ensuring accurate test results.

41 services41 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

34 services31 patients

Repositioning exercises of head for treatment of dizziness, each day 95992

Repositioning exercises of the head help manage dizziness by training your brain to cope with the signals that trigger this sensation. Daily, gentle movements of the head and body can reduce symptoms and improve balance.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95060 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$141.77 typical visit price

range $62.97 – $186.69

Typical copayment $35.44 (range $15.74 – $46.67)

Most-billed visit code 99204

Established Patient

$77.84 typical visit price

range $21.02 – $153.16

Typical copayment $19.46 (range $5.25 – $38.29)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.26/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

82.97

Promoting Interoperability

85.91

Improvement Activities

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RACHEL ERSOFF AUD

Audiologist