DR. KATHERINE C YUNG M.D.
NPI 1508985243
Otolaryngology - Otolaryngology/Facial Plastic Surgery in San Francisco, CA

Active since March 27, 2007PECOS EnrolledAccepts Medicare Assignment
2340 CLAY ST FL 5, SAN FRANCISCO, CA 94115(415) 600-0151 Get Directions Write a Review

NPPES record last updated: January 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 21, 2026, Jan 13, 2026, Feb 19, 2020 (3 updates tracked since 2020).

About Dr. Katherine C Yung M.d. NPPES

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

DR. KATHERINE C YUNG M.D. (NPI 1508985243) is an individual otolaryngology/facial plastic surgery provider in San Francisco, California, licensed in California (A102733) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Washington University School Of Medicine (2003).

NPPES Registry Identity

NPI1508985243
Entity TypeIndividualFemale
Primary Taxonomy207YX0905X
Provider Legal NameDR. KATHERINE C YUNGCredential: M.D.
Location Address2340 CLAY ST FL 5San Francisco, CA 94115-1932
Mailing AddressPo Box 276950Sacramento, CA 95827-6950
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 2003
Enumeration DateMarch 27, 2007
Last NPPES UpdateJanuary 21, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 21, 2026
✔ NPI 1508985243 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOtolaryngology · Otolaryngology/Facial Plastic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207YX0905X
License✔ Licensed in CA · A102733
Definition
An otolaryngologist who specializes in the diagnosis and surgical treatment of head and neck conditions.
Also ListedOtolaryngologyTaxonomy 207Y00000X · License BY9232389 (MO), A102733 (CA)
2340 CLAY ST FL 5, San Francisco, CA 94115

Secondary Practice Locations 2

Location 1450 Sutter St Rm 933San Francisco, CA 94108-3997 · Phone (415) 362-5443 · Fax (415) 240-4022
Location 2450 Sutter St Ste 1139San Francisco, CA 94108-4206 · Phone (415) 839-8639 · Fax (415) 839-8669

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Katherine C Yung M.d. 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 ID4789763624
PECOS Enrollment IDI20080505000296
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Katherine Yung reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Otolaryngology
450 SUTTER ST RM 933
San Francisco, CA 94108
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: San Francisco Otolaryngology Medical Group Inc
  • 6 clinicians in this Medicare group
Multi-Specialty
12 CAMINO ENCINAS
Orinda, CA 94563
  • Reassigned Medicare billing, California enrollment
  • 4,479 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

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.

Injection, onabotulinumtoxina, 1 unit J0585
Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.
2,051 services12 patients
Injectable bulking agent for vocal cord medialization, 0.1 ml, includes shipping and necessary supplies L8607
This procedure involves injecting a bulking agent into your vocal cords to help them close better, which can improve your voice quality. The 0.1 ml dosage includes all necessary supplies and shipping. It's a common treatment for voice disorders.
571 services44 patients
Exam to assess movement of vocal cord flaps using an endoscope 31579
This procedure involves using a thin, flexible tube called an endoscope to view your vocal cords. The endoscope is gently inserted through your nose or mouth to observe the movement of your vocal cords. This helps identify any abnormalities or issues.
380 services175 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
373 services25 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.
261 services128 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.
139 services139 patients

Other Providers at the Same Location NPPES 8

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

Otolaryngology (Plastic Surgery within the Head & Neck)
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115
Otolaryngology (Plastic Surgery within the Head & Neck)
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115
Nurse Practitioner (Family)
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115
Physician Assistant
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115
Physician Assistant (Surgical)
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115
Ophthalmology
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115
Otolaryngology
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115
Speech-Language Pathologist
2340 CLAY ST FL 5
SAN FRANCISCO, CA 94115

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 Katherine Yung's NPI number?

The NPI number for Katherine Yung is 1508985243. It was assigned to this individual provider in the NPPES registry on March 27, 2007.

Where is Katherine Yung located?

Katherine Yung practices at 2340 Clay St Fl 5, San Francisco, CA 94115. The listed phone number is (415) 600-0151.

What is Katherine Yung's specialty?

The primary specialty registered for this NPI is Otolaryngology, specializing in Otolaryngology/Facial Plastic Surgery, with taxonomy code 207YX0905X.

Is Katherine Yung enrolled in Medicare?

Yes. Katherine Yung 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.

Which organizations bill Medicare for Katherine Yung's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Yung reassigns Medicare benefits to 2 organizations: Sh Medical Group (San Francisco, CA) and Sutter Bay Medical Foundation (Orinda, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katherine Yung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Katherine Yung was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.