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Dr. William Ryan, MD

Dr. William Ryan, MD

San Mateo, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ryan, Otolaryngologist in San Mateo, CA?

    Dr. William Ryan, MD is an Otolaryngologist, who primarily practices in San Mateo, CA with 2 additional practice locations. He is board certified. Dr. Ryan completed his residency at Stanford University Medical Center. Dr. Ryan is fluent in English, and is currently seeing new patients. Dr. Ryan’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ryan’s office at (650) 725-6500.

    What are Areas of Expertise for Dr. Ryan?

    Dr. William Ryan, MD is a highly-rated, board-certified Otolaryngologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Ryan empowers patients to confidently navigate their health journey, specializing in Head & Neck Surgery, or comprehensive wellness support. Serving the San Mateo/CA community, Dr. Ryan is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. Ryan go to medical school and complete their residency?

    • Residency: Stanford University Medical Center

    Is Dr. Ryan board certified as an Otolaryngologist?

    Yes, Dr. William Ryan, MD is board certified by the American Board of Otolaryngology

    What languages does Dr. Ryan speak?

    Dr. Ryan and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Ryan treat?

    As an Otolaryngologist, Dr. Ryan diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Ryan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Oral Cancer
    • Tongue Cancer
    • Mouth Cancer
    • Malignant Neoplasm of Tongue
    • Oral Cavity Cancer
    • Mouth Malignancy
    • Oral Carcinoma
    • Tongue Carcinoma

    ICD-10 Codes:

    • C029: Malignant neoplasm of tongue, unspecified
    • C069: Malignant neoplasm of mouth, unspecified
    • C01: Malignant neoplasm of base of tongue

    Also known as:

    • Other Salivary Gland Problems
    • Salivary Gland Stones
    • Salivary Gland Infection
    • Salivary Gland Disorder
    • Saliva & Salivary Gland Disorder
    • Salivary Gland Issues
    • Saliva Gland Ailments
    • Unspecified Salivary Gland Disease
    • Salivary stones
    • Sialoliths
    • Blocked salivary duct
    • Sialadenitis
    • Inflamed Salivary Gland
    • Salivary Gland Inflammation

    ICD-10 Codes:

    • K118: Other diseases of salivary glands
    • K115: Sialolithiasis
    • K1120: Sialoadenitis, unspecified

    Also known as:

    • Throat Cancer
    • Oral Cancer
    • Laryngeal Cancer
    • Voice Box Cancer
    • Malignant Laryngeal Tumor
    • Oropharyngeal Cancer
    • Malignant Neoplasm of Oropharynx
    • Pharyngeal Cancer
    • Tonsil Cancer
    • Malignant Neoplasm of Tonsil

    ICD-10 Codes:

    • C329: Malignant neoplasm of larynx, unspecified
    • C109: Malignant neoplasm of oropharynx, unspecified
    • C099: Malignant neoplasm of tonsil, unspecified

    Also known as:

    • Thyroid Cancer
    • Thyroid Carcinoma
    • Malignant Thyroid Nodule
    • Thyroid Gland Cancer

    ICD-10 Codes:

    • C73: Malignant neoplasm of thyroid gland

    Also known as:

    • Difficulty Swallowing
    • Oropharyngeal Dysphagia
    • Swallowing Disorder
    • Dysphagia
    • Trouble swallowing
    • Painful swallowing
    • Difficulty Swallowing in Throat
    • Trouble Starting to Swallow
    • Throat Swallowing Problems

    ICD-10 Codes:

    • R1310: Dysphagia, unspecified
    • R1312: Dysphagia, oropharyngeal phase

    Also known as:

    • Single Nontoxic Thyroid Nodule
    • Thyroid Disease
    • Benign Thyroid Nodule
    • Solitary Thyroid Nodule

    ICD-10 Codes:

    • E041: Nontoxic single thyroid nodule

    Also known as:

    • Neck Lump or Swelling
    • Neck Mass
    • Bump on Neck
    • Neck Nodule

    ICD-10 Codes:

    • R221: Localized swelling, mass and lump, neck

    Also known as:

    • Salivary Gland Cancer
    • Parotid Gland Cancer
    • Salivary Gland Tumor
    • Salivary Gland Carcinoma

    ICD-10 Codes:

    • C07: Malignant neoplasm of parotid gland

    Also known as:

    • Cancer Surgery Aftercare
    • After Surgery
    • Cancer
    • Post-cancer surgery care
    • Oncology aftercare
    • Cancer recovery follow-up

    ICD-10 Codes:

    • Z483: Aftercare following surgery for neoplasm

    Also known as:

    • Other Mouth Lesions
    • Mouth Disorder
    • Oral Sores
    • Mouth Ulcers
    • Abnormalities in Mouth

    ICD-10 Codes:

    • K1379: Other lesions of oral mucosa

    Also known as:

    • Benign Parotid Gland Tumor
    • Benign Tumor
    • Salivary Gland Disorder
    • Non-cancerous parotid growth
    • Parotid gland adenoma
    • Parotid lump

    ICD-10 Codes:

    • D110: Benign neoplasm of parotid gland

    Also known as:

    • Cancer Follow-up Exam
    • Cancer
    • Post-cancer treatment checkup
    • Malignancy surveillance
    • Oncology follow-up

    ICD-10 Codes:

    • Z08: Encounter for follow-up examination after completed treatment for malignant neoplasm

    Also known as:

    • Secondary Cancer in Head and Neck Lymph Nodes
    • Cancer
    • Metastatic Cancer to Neck Lymph Nodes
    • Head and Neck Lymph Node Cancer Spread
    • Lymph Node Metastasis in Neck

    ICD-10 Codes:

    • C770: Secondary and unspecified malignant neoplasm of lymph nodes of head, face and neck

    What procedures does Dr. Ryan perform?

    As an Otolaryngologist, Dr. Ryan performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Ryan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Flexible Diagnostic Laryngoscopy
    • Voice Box Exam
    • Flexible Laryngoscope
    • Throat Scope
    • Diagnostic Throat Exam

    CPT Codes:

    • 31575: Laryngoscopy, flexible; diagnostic

    Also known as:

    • Diagnostic Bronchoscopy with Cell Washing
    • Bronchoscopy and Bronchoalveolar Lavage (BAL)
    • Fluoroscopy
    • Lung Scope with Cell Sample
    • Bronchoalveolar Lavage (BAL)
    • Flexible Bronchoscopy with Fluoroscopy

    CPT Codes:

    • 31622: Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; diagnostic, with cell washing, when performed (separate procedure)

    Also known as:

    • Laryngoscopy with Biopsy
    • Biopsy
    • Endoscopy
    • Direct Laryngoscopy with Tissue Sample
    • Voice Box Scope with Biopsy
    • Throat Biopsy via Laryngoscopy

    CPT Codes:

    • 31535: Laryngoscopy, direct, operative, with biopsy;

    Also known as:

    • Swallowing Function Test
    • Dysphagia Tests
    • Dysphagia Evaluation
    • Oral Swallowing Assessment
    • Pharyngeal Swallowing Test
    • Swallowing Study

    CPT Codes:

    • 92610: Evaluation of oral and pharyngeal swallowing function

    Also known as:

    • Swallowing Therapy
    • Dysphagia Treatment
    • Feeding Therapy
    • Oral Function Therapy

    CPT Codes:

    • 92526: Treatment of swallowing dysfunction and/or oral function for feeding

    Also known as:

    • Deep Neck Lymph Node Biopsy
    • Biopsy
    • Cervical Lymph Node Excision
    • Open Neck Lymph Node Biopsy
    • Deep Cervical Node Removal

    CPT Codes:

    • 38510: Biopsy or excision of lymph node(s); open, deep cervical node(s)

    Also known as:

    • Modified Radical Neck Dissection
    • Cervical Lymph Node Removal
    • Neck Lymphadenectomy
    • Neck Dissection Surgery
    • Lymph Node Biopsy Neck

    CPT Codes:

    • 38724: Cervical lymphadenectomy (modified radical neck dissection)

    Also known as:

    • Voice Prosthetic Fitting
    • Speech Prosthesis Evaluation
    • Voice Device Assessment
    • Artificial Voice Fitting

    CPT Codes:

    • 92597: Evaluation for use and/or fitting of voice prosthetic device to supplement oral speech

    Also known as:

    • Diagnostic Esophagus Scope with Biopsy
    • Flexible Esophagoscopy
    • Esophagus Biopsy
    • Upper Endoscopy
    • Transoral Esophagoscopy

    CPT Codes:

    • 43200: Esophagoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Parotid Gland Tumor Removal with Facial Nerve Preservation
    • Parotidectomy
    • Salivary gland tumor removal
    • Facial nerve sparing parotidectomy
    • Lateral parotidectomy

    CPT Codes:

    • 42415: Excision of parotid tumor or parotid gland; lateral lobe, with dissection and preservation of facial nerve

    Also known as:

    • Salivary Duct Repair
    • Sialodochoplasty
    • Salivary Gland Duct Repair
    • Complicated Salivary Duct Surgery

    CPT Codes:

    • 42505: Plastic repair of salivary duct, sialodochoplasty; secondary or complicated

    Also known as:

    • Complicated Salivary Gland Stone Removal
    • Sialolithotomy
    • Submandibular Stone Removal
    • Salivary Duct Stone Surgery

    CPT Codes:

    • 42335: Sialolithotomy; submandibular (submaxillary), complicated, intraoral

    Also known as:

    • Skin Flap Surgery
    • Tissue Transfer
    • Local Flap Reconstruction
    • Adjacent Tissue Rearrangement

    CPT Codes:

    • 14040: Adjacent tissue transfer or rearrangement, forehead, cheeks, chin, mouth, neck, axillae, genitalia, hands and/or feet; defect 10 sq cm or less

    Also known as:

    • Head and Neck Muscle Flap Surgery
    • Myocutaneous Flap
    • Fasciocutaneous Flap
    • Head and Neck Reconstruction
    • Vascular Pedicle Flap

    CPT Codes:

    • 15733: Muscle, myocutaneous, or fasciocutaneous flap; head and neck with named vascular pedicle (ie, buccinators, genioglossus, temporalis, masseter, sternocleidomastoid, levator scapulae)

    Does Dr. Ryan accept my insurance?

    Dr. Ryan accepts most major insurance plans. Important: Please call our office at (650) 725-6500 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Ryan accept in San Mateo, CA?

    Dr. Ryan in San Mateo, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • BCBS Unspecified

    • Blue Shield of California

    • Centene

    • Crown Cork and Seal Company

    • Health Plan of San Joaquin

    • Medicare

    • State of Tennessee

    • Sutter Health

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Ryan's office located?

    Dr. William Ryan's Primary Practice

    123 S San Mateo Dr

    San Mateo, CA 94401

    (650) 725-6500

    Get Directions

    Dr. William Ryan's Practice 2

    505 Parnassus Ave # M1490

    San Francisco, CA 94143

    Get Directions

    Dr. William Ryan's Practice 3

    1825 4th St Fl 4

    San Francisco, CA 94143

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    What is Dr. Ryan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Ryan's National Provider Identifier (NPI) number is 1184811549.

    What common questions do patients ask about Dr. Ryan?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ryan

    What is Dr. William Ryan's specialty?

    Dr. Ryan is a Otolaryngologist near San Mateo, CA. An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for conditions affecting the ears, nose, throat, respiratory, and upper alimentary systems, as well as related head and neck structures. This specialist diagnoses and treats diseases, allergies, neoplasms, deformities, disorders, and injuries involving these areas. Expertise includes head and neck oncology, facial plastic and reconstructive surgery, and the treatment of hearing and voice disorders. Contact Dr. Ryan to book an appointment today.

    Is this Dr. William Ryan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Ryan is affiliated with California Pacific Medical Center - Van Ness Campus which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    Where can I learn more about Otolaryngologist?

    Explore Otolaryngologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is William Ryan accepting new patients in San Mateo, CA?

    Yes, Dr. William Ryan is accepting new patients at this time.

    Does Dr. William Ryan offer online booking?

    Please contact Dr. Ryan's office at (650) 725-6500 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with William Ryan?

    Please contact Dr. Ryan's office at (650) 725-6500 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. William Ryan have?

    Dr. William Ryan is certified by the American Board of Otolaryngology.

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