DR. KATHERINE C YUNG M.D.
NPI 1508985243
Otolaryngology - Otolaryngology/Facial Plastic Surgery in San Francisco, CA
NPI Status: Active since March 27, 2007
Contact Information
2340 CLAY ST FL 5
SAN FRANCISCO, CA
ZIP 94115
Phone: (415) 600-0151
- Individual
- Female
- Years of Experience 23
- Otolaryngology
- Otolaryngology/Facial Plastic Surgery
- Accepts Medicare Approved Payment
- PECOS Enrolled
About KATHERINE YUNG
This page provides the complete NPI Profile along with additional information for Katherine Yung, a provider established in San Francisco, California with a medical specialization in Otolaryngology, focusing in otolaryngology/facial plastic surgery and more than 23 years of experience. She graduated from Washington University School Of Medicine in 2003. The healthcare provider is registered in the NPI registry with number 1508985243 assigned on March 2007. The practitioner's primary taxonomy code is 207YX0905X with license number A102733 (CA). The provider is registered as an individual and her NPI record was last updated January 2026.
- NPI
- 1508985243
- Provider Name
- DR. KATHERINE C YUNG M.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 2340 CLAY ST FL 5 SAN FRANCISCO, CA 94115
- Location Phone
- (415) 600-0151
- Mailing Address
- PO BOX 276950 SACRAMENTO, CA 95827
- Medical School Name
- WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
- Graduation Year
- 2003
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-27-2007
- Last Update Date
- 01-21-2026
- Code Navigator
Location Map
Secondary Locations
- 450 Sutter St Rm 933
San Francisco, CA 94108
(415) 362-5443 - 450 Sutter St Ste 1139
San Francisco, CA 94108
(415) 839-8639
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Otolaryngology Otolaryngology/Facial Plastic Surgery
- Taxonomy Code
- 207YX0905X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A102733
- License State
- CA
- Taxonomy Description
- An otolaryngologist who specializes in the diagnosis and surgical treatment of head and neck conditions.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207Y00000X | Allopathic & Osteopathic Physicians | Otolaryngology | BY9232389 (MO) |
| 2 | 207Y00000X | Allopathic & Osteopathic Physicians | Otolaryngology | A102733 (CA) |
Medicare Participation & PECOS Enrollment Status
Katherine Yung is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Katherine Yung is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
PECOS PAC ID: 4789763624
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20080505000296
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Established patient office or other outpatient visit, 40-54 minutes
Evaluation and recording of swallowing using an endoscope
Evaluation, recording, and interpretation of swallowing using an endoscope
Exam to assess movement of vocal cord flaps using an endoscope
Injectable bulking agent for vocal cord medialization, 0.1 ml, includes shipping and necessary supplies
Injection of drug into side of voice box using an endoscope
Injection of substance to augment voice box using an endoscope
Injection, onabotulinumtoxina, 1 unit
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
New patient office or other outpatient visit, 45-59 minutes
Upper gastrointestinal (GI) endoscopy for acid reflux
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.
This service was performed 65 times for 37 patientsThis 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.
This service was performed 284 times for 120 patientsThis service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
This service was performed 12 times for 11 patientsThis procedure, known as endoscopic evaluation of swallowing, involves using a thin, flexible tube with a camera (endoscope) to view your throat and evaluate your swallowing. It helps identify any issues that may be causing difficulty in swallowing.
This service was performed 17 times for 17 patientsThis procedure, known as endoscopic evaluation of swallowing, involves passing a thin, flexible tube with a light and camera through your nose to your throat. It helps doctors observe your swallowing process in real time, identify any issues, and plan appropriate treatments.
This service was performed 18 times for 16 patientsThis 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.
This service was performed 328 times for 141 patientsThis 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.
This service was performed 440 times for 31 patientsThis procedure involves the use of a thin tube called an endoscope to deliver medication directly into the side of your voice box. This method allows for precise placement of the drug, helping to address specific issues with your voice or throat.
This service was performed 19 times for 12 patientsThis procedure involves using a thin, flexible tool called an endoscope to inject a substance into your voice box, or larynx. The substance helps to enhance the function of the voice box, improving your ability to speak. It's a safe, common procedure to help with voice issues.
This service was performed 44 times for 32 patientsOnabotulinumtoxina, 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.
This service was performed 1,750 times for 13 patientsTriamcinolone 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.
This service was performed 198 times for 17 patientsThis 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.
This service was performed 98 times for 98 patientsAn upper GI endoscopy is a procedure to examine your esophagus and stomach using a thin, flexible tube called an endoscope. It helps diagnose conditions like acid reflux by identifying any inflammation or damage. It's generally safe, performed under sedation, and takes about 15-30 minutes.
This service was performed for 1-10 patientsReviews for DR. KATHERINE C YUNG M.D.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1508985243, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 67 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 6 providers are registered at the same or a nearby location.
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1508985243, enumerated as an "individual" on March 27, 2007.
The provider is located at 2340 CLAY ST FL 5 SAN FRANCISCO, CA 94115 and the phone number is (415) 600-0151.
Otolaryngology with taxonomy code 207YX0905X and a focus in Otolaryngology/Facial Plastic Surgery.