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

Stephen Yoon, M.D.

Internal Medicine Physician

NPI: 1851327100

2.3

7 · US News

19

Years Exp.

Fullerton

CA

Internal Medicine

Specialty

About

Patient feedback indicates a mixed response to Dr. Yoon's practice, reflected in an average rating of 3.0 stars based on seven reviews. While some patients appreciate his thorough explanations and attentive listening, others have expressed concerns about feeling rushed during appointments. With a typical office visit cost ranging from $80 to $250, Dr. Yoon continues to serve the healthcare needs of the Fullerton community.

Practicing Since

Jun 2006

Gender

Male

Experience

19 years

CA Medical License

#A71645

Practice Type

Group Practice

NPI Number

1851327100
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. Stephen Yoon, 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

Fullerton Low

$82

Fullerton Typical

$202

Fullerton High

$204

In Fullerton, a typical internal medicine physician visit costs $202, ranging from $82 to $204. This is 138% above the California state median of $85. Based on 30 providers with published pricing data.

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 26 internal medicine physicians in Fullerton 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

2.3

7 reviews

US News

Dr. Stephen Yoon, MD, a specialist in hospice and palliative medicine with over 25 years of experience, has received a mixed response from patients, reflected in a low average rating of 2.3 stars based on three reviews. While some patients express satisfaction with his ability to listen, answer questions, and explain conditions thoroughly, the overall sentiment leans towards the negative. Notably, one patient mentioned feeling rushed during their appointment, which may contribute to the dissatisfaction reflected in the ratings. Common themes in praise include Dr. Yoon's attentive bedside manner and his willingness to engage with patients by addressing their concerns. However, criticisms often center around the perception of his demeanor, with some patients feeling that he lacks warmth or a caring attitude. The low likelihood of recommending him to others suggests that potential patients may want to consider these factors before making an appointment. Overall, while Dr. Yoon demonstrates expertise in his field, prospective patients may want to weigh the mixed reviews regarding his interpersonal skills and patient engagement.

Location

Address

101 E VALENCIA MESA DR

Fullerton, CA 92835

Phone

7149923000
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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.