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Profile last updated: April 2026How we source this data
TK
Provider Profile

Tony Kastoon, M.D.

Internal Medicine Physician

NPI: 1184636235

4.6

31 · Healthgrades

19

Years Exp.

San Bernardino

CA

Internal Medicine

Specialty

About

Dr. Tony Kastoon, MD, is an experienced internal medicine physician located in San Bernardino, CA. He specializes in the management of both common and complex illnesses, providing comprehensive care to adolescents, adults, and the elderly. Dr. Kastoon is well-trained in the diagnosis and treatment of a variety of conditions, including those affecting the heart, blood, kidneys, and endocrine system, particularly diabetes and thyroid disorders.

With a patient rating of 4.6 out of 5 based on 31 reviews, Dr. Kastoon is noted for his thorough explanations and attentiveness to patient concerns. Many patients have praised his friendly demeanor and expertise, contributing to high satisfaction with their healthcare experiences. Dr. Kastoon has been in practice for several years, and typical office visit costs for his services range from $80 to $250.

Practicing Since

Aug 2006

Gender

Male

Experience

19 years

MI Medical License

#4301076855

Practice Type

Group Practice

NPI Number

1184636235
Avg. Self-Pay Rate

$80

Low

$85

Median

$250

High

A typical office visit with a internal medicine physician in CA costs between $80 and $250, with a median of $85. These figures are based on negotiated office visit rates (CPT 99213–99215) disclosed under the Transparency in Coverage Act.

Actual office visit costs for Dr. Tony Kastoon, MD may vary depending on visit complexity, your insurance plan, and coverage details. Contact the provider's office for exact pricing.

Cost data sourced from insurer Transparency in Coverage Act filings. Costs shown are negotiated rates and may not reflect your actual out-of-pocket cost. Learn about our data

Local Market

Across California, a internal medicine physician visit ranges from $80 to $250 with a median of $85. This is 7% below the national median of $91. Based on 2,792 providers with published pricing data.

There are 16 internal medicine physicians in San Bernardino and 5,319 across California on our platform.

Individual negotiated rates for this provider are not yet available.

See full internal medicine physician cost breakdown in California
Patient Reviews

4.6

31 reviews

Healthgrades

Overall, patient sentiment towards Dr. Tony Kastoon, MD, is predominantly positive, with an average rating of 4.6 out of 5 based on 31 ratings. Many patients express high satisfaction with their experiences, highlighting Dr. Kastoon's expertise in endocrinology, particularly in managing diabetes and thyroid disorders. Common themes of praise include his thorough explanations of medical conditions, attentiveness to patient concerns, and a friendly demeanor. Patients appreciate that he takes the time to listen and collaborate on their care, often describing him as knowledgeable, caring, and efficient. However, there are some criticisms noted in the reviews. A few patients reported issues with customer service, particularly regarding communication and responsiveness from the office staff. Some felt that they had to advocate for themselves excessively and expressed frustration with the administrative aspects of their care. Despite these concerns, the majority of reviews emphasize Dr. Kastoon's medical competence and supportive approach, making him a recommended choice for those seeking an endocrinologist in the San Bernardino area. Notable specifics mentioned repeatedly include his willingness to follow up with patients and his ability to create a comfortable environment for discussing health issues.

Location

Address

399 E HIGHLAND AVE STE 227

San Bernardino, CA 92404

Phone

9098821210
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Momentary Lab sources provider data from the CMS NPI Registry and cost data from federal Transparency in Coverage files. Reviews aggregated from Healthgrades, Vitals, WebMD, and other public sources. Learn how we verify and update healthcare information.

This page is for informational purposes only and does not constitute medical advice. Cost estimates are based on publicly available negotiated rate data and may not reflect your actual out-of-pocket cost. Always consult with your healthcare provider and insurance company for accurate cost information and medical decisions.