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DR. KAREN YUE-SHANG FANN D.O.
NPI 1265635023
Otolaryngology in Mountain View, CA

Active since June 08, 2007PECOS EnrolledAccepts Medicare Assignment
83.56/100
CMS Quality Rating
2495 HOSPITAL DR STE 450, MOUNTAIN VIEW, CA 94040(650) 988-4161(650) 988-4162 Get Directions Write a Review

NPPES record last updated: November 11, 2020. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Karen Yue-shang Fann D.o. NPPES

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

DR. KAREN YUE-SHANG FANN D.O. (NPI 1265635023) is an individual otolaryngology provider in Mountain View, California, licensed in California (20A9852) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2002).

NPPES Registry Identity

NPI1265635023
Entity TypeIndividualFemale
Primary Taxonomy207Y00000X
Provider Legal NameDR. KAREN YUE-SHANG FANNCredential: D.O.
Location Address2495 HOSPITAL DR STE 450Mountain View, CA 94040-4171
Mailing Address2495 Hospital Dr Ste 450Mountain View, CA 94040-4171 · (650) 988-4161 · Fax (650) 988-4162
Phone(650) 988-4161
Fax(650) 988-4162
Sole ProprietorNo
Medical School CMSOtherGraduated 2002
Enumeration DateJune 8, 2007
Last NPPES UpdateNovember 11, 2020
NPPES CertifiedNovember 11, 2020
✔ NPI 1265635023 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in CA · 20A9852
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.
2495 HOSPITAL DR STE 450, Mountain View, CA 94040
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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

Dr. Karen Yue-shang Fann D.o. 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 ID4587733571
PECOS Enrollment IDI20080516000284
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 11

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.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
205 services124 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.
184 services134 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.
152 services115 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
94 services94 patients
Exam of ear using a microscope 92504
An exam of the ear using a microscope allows a detailed view of the ear structures. This non-invasive procedure helps identify issues such as infections, blockages, or ear damage. It's a safe, quick, and painless way to evaluate ear health.
90 services64 patients
Exam of the nose and throat using an endoscope 92511
An endoscopic examination of the nose and throat is a procedure where a thin, flexible tube with a light and camera attached (endoscope) is used to view these areas in detail. It helps identify any abnormalities or issues that may be causing symptoms like difficulty swallowing, persistent cough, or nasal congestion.
30 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94040 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
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.

83.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality83.75
Promoting Interoperability100
Improvement Activities40
Cost61.45

Other Providers at the Same Location NPPES 4

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

DR. ANDREW RATHNASAMY XAVIER MD
Psychiatry & Neurology (Vascular Neurology)
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (408) 871-3400
DR. PATRICIA YEH M.D.
Internal Medicine
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 962-4370
MS. WENDY CRISTINA PERDOMO PENA M.D.
Internal Medicine (Rheumatology)
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (408) 871-3400
MRS. ATENA ASIAII MD
Obstetrics & Gynecology
2495 HOSPITAL DR STE 450
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 694-3870

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Fann's NPI number?

The NPI number for Karen Fann is 1265635023. It was assigned to this individual provider in the NPPES registry on June 8, 2007.

Where is Karen Fann located?

Karen Fann practices at 2495 Hospital Dr Ste 450, Mountain View, CA 94040. The listed phone number is (650) 988-4161.

What is Karen Fann's specialty?

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

Is Karen Fann enrolled in Medicare?

Yes. Karen Fann is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Karen Fann was last updated on November 11, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.