JA
Accepting patients
Who is Dr. Ahn, MOHS-Micrographic Surgeon in Walnut Creek, CA?
Dr. Ji Won Ahn, MD is a MOHS-Micrographic Surgeon, who primarily practices in Walnut Creek, CA. Dr. Ahn is fluent in English and Korean, and is currently seeing new patients. Dr. Ahn’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ahn’s office at (412) 864-3668.
What languages does Dr. Ahn speak?
Dr. Ahn and their clinical team can communicate with patients in the following languages:
English
Korean
What conditions does a MOHS-Micrographic Surgeon like Dr. Ahn typically treat?
As a MOHS-Micrographic Surgeon, Dr. Ahn 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. Ahn. 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Squamous Cell Skin Cancer of the Face
- Skin Cancer
- Skin Cancer Treatment (PDQ®)
- Squamous Cell Carcinoma of Face
- Facial SCC
- Cutaneous Squamous Cell Carcinoma of Face
- Face Skin Malignancy
ICD-10 Codes:
- C44329: Squamous cell carcinoma of skin of other parts of face
Also known as:
- Basal Cell Skin Cancer of the Nose
- Skin Cancer
- Skin Cancer Treatment (PDQ)
- Basal Cell Carcinoma (BCC)
- Rodent Ulcer
- BCC
- Basal Cell Carcinoma
ICD-10 Codes:
- C44311: Basal cell carcinoma of skin of nose
Also known as:
- High Cholesterol
- Cholesterol
- Triglycerides
- Hyperlipidemia
- High lipids
- Dyslipidemia
ICD-10 Codes:
- E785: Hyperlipidemia, unspecified
What procedures does a MOHS-Micrographic Surgeon like Dr. Ahn typically perform?
As a MOHS-Micrographic Surgeon, Dr. Ahn 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. Ahn. 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Mohs Micrographic Surgery
- Mohs Surgery
- Micrographic Skin Cancer Surgery
- Mohs Excision
- Precision Skin Cancer Removal
CPT Codes:
- 17311: Mohs micrographic technique, including removal of all gross tumor, surgical excision of tissue specimens, mapping, color coding of specimens, microscopic examination of specimens by the surgeon, and histopathologic preparation including routine stain(s) (eg, hematoxylin and eosin, toluidine blue), head, neck, hands, feet, genitalia, or any location with surgery directly involving muscle, cartilage, bone, tendon, major nerves, or vessels; first stage, up to 5 tissue blocks
Also known as:
- Mohs Surgery
- Mohs Micrographic Surgery
- Skin Cancer Removal
- Precise Skin Cancer Surgery
CPT Codes:
- 17312: Mohs micrographic technique, including removal of all gross tumor, surgical excision of tissue specimens, mapping, color coding of specimens, microscopic examination of specimens by the surgeon, and histopathologic preparation including routine stain(s) (eg, hematoxylin and eosin, toluidine blue), head, neck, hands, feet, genitalia, or any location with surgery directly involving muscle, cartilage, bone, tendon, major nerves, or vessels; each additional stage after the first stage, up to 5 tissue blocks (List separately in addition to code for primary procedure)
Also known as:
- Facial Wound Repair
- Wounds and Injuries
- Stitches for facial cut
- Intermediate wound closure
- Repair of facial laceration
CPT Codes:
- 12051: Repair, intermediate, wounds of face, ears, eyelids, nose, lips and/or mucous membranes; 2.5 cm or less
Also known as:
- Skin Biopsy
- Shave Biopsy
- Tangential Biopsy
- Skin Lesion Biopsy
CPT Codes:
- 11102: Tangential biopsy of skin (eg, shave, scoop, saucerize, curette); single lesion
Does Dr. Ahn accept my insurance?
Dr. Ahn accepts most major insurance plans. Important: Please call our office at (412) 864-3668 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Ahn accept in Walnut Creek, CA?
Dr. Ahn in Walnut Creek, 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
Kaiser Permanente
Medicare
View All Insurances
Where is Dr. Ahn's office located?
What is Dr. Ahn's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Ahn's National Provider Identifier (NPI) number is 1023460243.
What common questions do patients ask about Dr. Ahn?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ahn
What is Dr. Ji Won Ahn's specialty?
Dr. Ahn is a MOHS-Micrographic Surgeon near Walnut Creek, CA.
What does a MOHS-Micrographic Surgeon do?
Mohs Micrographic Surgery is conducted by specialized surgeons with expertise in dermatology and pathology. Their skills allow them to remove only diseased tissue while preserving healthy skin, minimizing cosmetic impact. Surgeons affiliated with the American College of Mohs Surgery (ACMS) have completed at least one year of fellowship training at an ACMS-accredited institution in the U.S.
Is this Dr. Ji Won Ahn affiliated with a ranked Castle Connolly Top Hospital?
No, Ahn is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Kaiser Permanente - Walnut Creek Medical Center. Castle Connolly Top Hospitals 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
When to see a MOHS-Micrographic Surgeon?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a MOHS-Micrographic Surgeon. Explore 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 Ji Won Ahn accepting new patients in Walnut Creek, CA?
Yes, Dr. Ji Won Ahn is accepting new patients at this time.
Does Dr. Ji Won Ahn offer online booking?
Please contact Dr. Ahn's office at (412) 864-3668 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ji Won Ahn?
Please contact Dr. Ahn's office at (412) 864-3668 for information regarding telehealth appointment availability or for scheduling assistance.
Other MOHS-Micrographic Surgeon Near Walnut Creek, CA

MOHS-Micrographic Surgeon
Dr. Kathleen Ting, MD is a MOHS-Micrographic Surgeon, who primarily practices in Sacramento, CA with 2 additional practice locations. She has been practicing for over 25 years and is board certified.
Sacramento, CA

MOHS-Micrographic Surgeon
Dr. Gregory Bricca, MD is a MOHS-Micrographic Surgeon, who primarily practices in Roseville, CA with 1 additional practice location. He has been practicing for over 21 years and is board certified.
Roseville, CA

MOHS-Micrographic Surgeon
Dr. Michael Trauner, MD is a MOHS-Micrographic Surgeon, who primarily practices in Sacramento, CA with 2 additional practice locations. He is board certified.
Sacramento, CA