Denis Yoshii, D.O.
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- NPI Number
- 1124091814
- Provider Type
- Individual Practitioner
- Credential
- D.O.
- Primary Specialty
- Allopathic & Osteopathic Physicians - Allergy & Immunology Physician
- License Number
- 20A6936
- Practice Address
- 1700 Adams AVE STE 100
- City, State ZIP
- Costa Mesa, CA 92626
- Phone
- (714) 549-0301
- Last Updated
- June 8, 2026
- Source
- Publicly available data
Denis Yoshii, D.O. is a allergy & immunology physician provider located in Costa Mesa, CA. They offer allergy & immunology physician services to patients in the Costa Mesa area.
As a allergy & immunology physician provider in Costa Mesa, this clinician evaluates and treats patients for a range of common conditions seen in Costa Mesa and throughout CA.
The practice is located at 1700 Adams AVE STE 100, Costa Mesa, CA 92626. Patients can call 7145490301 to schedule an appointment or use the directions link above to find the office from anywhere in the area.
Patients typically visit this provider for common reasons to schedule a visit include annual checkups, new or worsening symptoms, medication refills, lab work, preventive screenings, chronic condition management, and second opinions.
If you plan to see this provider, it is a good idea to confirm that the practice accepts your insurance and is in-network before scheduling. Coverage details vary by plan, and our quote tool can help you compare options in CA.
This profile was last verified on June 8, 2026. Provider information is sourced from publicly available data and may not reflect recent changes. Please confirm details directly with the practice before scheduling.
Call for hours and appointments. Hours may vary by provider and location.
A patient’s guide to allergy & immunology physician care in Costa Mesa, CA.
What a Allergy & Immunology Physician provider does
Healthcare providers diagnose, treat, and help prevent illness and injury. They work with patients to manage ongoing conditions, interpret test results, prescribe medications when appropriate, and coordinate care with other specialists. Most providers accept both insured and self-pay patients, and many offer telehealth visits for routine concerns.
Common conditions treated
Common conditions evaluated include high blood pressure, diabetes, respiratory infections, allergies, skin conditions, digestive complaints, headaches, and musculoskeletal pain. Providers also handle preventive screenings and routine lab work.
Common reasons to schedule a visit
Common reasons to schedule a visit include annual checkups, new or worsening symptoms, medication refills, lab work, preventive screenings, chronic condition management, and second opinions.
What to expect during a visit
During a typical visit, the provider will review your medical history, ask about current concerns, perform a relevant examination, and recommend next steps such as lifestyle changes, prescriptions, additional testing, or specialist referrals. Bring a list of current medications, recent test results, and questions you would like answered.
Insurance coverage considerations
Most major insurance plans cover preventive care and medically necessary visits, but copays, deductibles, and network restrictions vary. Contact your insurance carrier or use our quote tool to confirm a provider is in-network before scheduling.
How to choose the right allergy & immunology physician provider in Costa Mesa
When choosing a healthcare provider, look for board certification, convenient location and hours, accepted insurance plans, and a communication style that fits your preferences. Patient reviews and hospital affiliations can also help you make a confident decision.
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Insurance acceptance not listed
The public NPI registry does not include insurance acceptance data. Contact the office directly to ask if they accept your insurance plan. You can also use our quote tool to find health plans in CA.
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Common questions about Denis Yoshii, D.O. in Costa Mesa, CA.
How do I make an appointment with Denis Yoshii, D.O.?
Call Denis Yoshii, D.O. directly at their Costa Mesa office to schedule a visit. You can also use the contact form on this page to send a message and the practice will respond.
Does Denis Yoshii, D.O. accept insurance?
Provider insurance information is not included in the public NPI registry data that powers this directory. Contact the office directly to ask whether they accept your specific insurance plan. You can also use our quote tool to find health plans in CA.
What are the office hours for Denis Yoshii, D.O. in Costa Mesa?
Office hours for Denis Yoshii, D.O. in Costa Mesa are not currently published. Call the practice directly to confirm hours before your visit.
Is parking available at Denis Yoshii, D.O.'s Costa Mesa location?
Most provider offices in Costa Mesa offer on-site or nearby street parking. Call Denis Yoshii, D.O. in Costa Mesa ahead of time to confirm parking options and accessibility accommodations.
Does Denis Yoshii, D.O. accept walk-in appointments?
Walk-in availability for allergy & immunology physician providers varies by location and day. Call ahead to confirm same-day availability before visiting.
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Claim ProfileData is sourced from publicly available records. Public records do not confirm active license status, quality of care, insurance acceptance, or network participation. Please verify details directly with the provider before scheduling. Last updated June 8, 2026.