Felix Davis Castro, MD

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Review by Anonymous on April 03, 2026 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Terrific... ”

Terrific

Verified Patient

“Terrific...”

Terrific

Anonymous 04/03/2026

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Review by Anonymous on February 15, 2026 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Felix was amazing!... ”

Dr. Felix was amazing!

Verified Patient

“Dr. Felix was amazing!...”

Dr. Felix was amazing!

Anonymous 02/15/2026

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Review by Anonymous on January 21, 2026 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Good experience... ”

Good experience

Verified Patient

“Good experience...”

Good experience

Anonymous 01/21/2026

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Review by Anonymous on October 30, 2025 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Everything was excellent... ”

Everything was excellent

Verified Patient

“Everything was excellent...”

Everything was excellent

Anonymous 10/30/2025

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Review by Anonymous on October 09, 2025 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Castro was attentive and cle... ”

Dr. Castro was attentive and clear that all is well.

Verified Patient

“Dr. Castro was attentive and cle...”

Dr. Castro was attentive and clear that all is well.

Anonymous 10/09/2025

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Review by Anonymous on March 05, 2026 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Castro was very thorough, an... ”

Dr. Castro was very thorough, and I will return to see him again.

Verified Patient

“Dr. Castro was very thorough, an...”

Dr. Castro was very thorough, and I will return to see him again.

Anonymous 03/05/2026

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Review by Anonymous on January 27, 2026 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Have been going to Dr Castro for... ”

Have been going to Dr Castro for many years. He continues to be very helpful and caring.

Verified Patient

“Have been going to Dr Castro for...”

Have been going to Dr Castro for many years. He continues to be very helpful and caring.

Anonymous 01/27/2026

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Review by Anonymous on November 07, 2025 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr Castro is great.... ”

Dr Castro is great.

Verified Patient

“Dr Castro is great....”

Dr Castro is great.

Anonymous 11/07/2025

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Review by Anonymous on October 21, 2025 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Castro was excellent!... ”

Dr. Castro was excellent!

Verified Patient

“Dr. Castro was excellent!...”

Dr. Castro was excellent!

Anonymous 10/21/2025

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Review by Anonymous on September 07, 2025 -

Inova Cardiology - Fairfax - 8081 Innovation Park Dr. Ste 700

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Castro is fantastic... ”

Dr. Castro is fantastic

Verified Patient

“Dr. Castro is fantastic...”

Dr. Castro is fantastic

Anonymous 09/07/2025

Office Hours

Internal Medicine Physician - Cardiovascular Disease

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Office & Staff Evaluation Not rated

Provider Evaluation

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Affiliated Practices

Inova Cardiology - Fairfax

Practice Colleagues

Behnam Tehrani, MD - Internal Medicine Physician

Robert Shapiro, MD - Internal Medicine Physician

Paul DiLorenzo, MD - Internal Medicine Physician

Rafael Arias, MD - Internal Medicine Physician

Kevin Rogan, MD - Internal Medicine Physician

Jason Bonomo, MD - Internal Medicine Physician

John O'Brien, MD - Internal Medicine Physician

Nicholas Balaji, MD - Internal Medicine Physician

Tina Slottow, MD - Internal Medicine Physician

Sachin Gandhi, MD - Internal Medicine Physician

Procedures & Services

Procedures & Treatments Offered

Commonly Prescribed Medications

Accepted Insurance

Accepted Insurance