David Park, CPC

Specialty Billing Expert · 14+ years

David Park is a CPC-certified medical billing specialist with 14+ years of experience in specialty billing and case study research. He specializes in cardiology, physical therapy, chiropractic, and urgent care billing workflows, with deep expertise in denial appeals and payer-specific rules. David holds active AAPC certification and authors MMBS specialty billing guides and case study documentation.

Credentials: CPC

Articles by David Park, CPC

Medical billing guides, code references, and compliance articles authored by David Park, CPC.

Denial Management

How to Appeal a Denied Medical Claim Step by Step: Payer Appeal Process, Timelines, and CARC Code Responses

Step-by-step guide to appealing denied claims: CARC codes, Medicare appeal levels, payer-specific timelines, and documentation that wins.

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Practice Management

Top Medical Billing Companies in California for Physician Practices in 2026: Services, Pricing, and Medi-Cal Expertise

Compare California medical billing companies on Medi-Cal expertise, AB 72 compliance, clean claim rates, and AR days before signing a contract in 2026.

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Revenue Cycle

Chiropractic Medical Billing Common Mistakes: Denial Patterns, CPT Code Errors, and Medicare Coverage Rules

Chiropractic billing errors drain revenue quietly. This guide covers AT modifier documentation, CMT CPT codes, Medicare coverage rules, and denial management strategies.

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Revenue Cycle

How to Reduce Days in Accounts Receivable for Physician Practices: Proven Revenue Cycle Strategies

High AR days drain practice cash flow. MMBS-certified billers share five proven strategies to cut accounts receivable days from 50+ to under 32.

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Practice Management

Top 10 Medical Billing Companies for Physician Practices in 2026: Full Comparison

Choosing the right medical billing company affects your denial rate, AR days, and net collections. Here is how the top 10 RCM companies compare in 2026.

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Practice Management

Tebra vs athenahealth: Medical Billing Software Comparison for Small and Mid-Size Physician Practices in 2026

Tebra and athenahealth serve very different practice sizes. This comparison breaks down pricing, claim scrubbing, EHR fit, and denial handling so you can choose correctly.

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