Professional Medical Billing & Revenue Cycle Consulting

Three decades
of quiet
precision in
medical billing.

EKMP Billing Consulting partners with established medical practices to streamline revenue cycles, recover lost reimbursement, and operate with the discipline that only experience earns.

Since1989Trusted

A practice built on quiet competence and lasting relationships.

35+
Years in Practice
98%
Clean Claim Rate
24/7
Revenue Cycle Care
M
Founder · CEO
Mary Monong
Est. 1989
A Word from the Founder
"
Medical billing isn't a transaction. It's the quiet backbone of a practice — and it deserves the same care a physician brings to a patient.

Mary Monong founded EKMP Billing Consulting on a single principle: that revenue integrity begins with relationships, not software. Over more than thirty-five years, she has built the firm into a trusted partner for distinguished medical practices across New York — quietly, deliberately, and without ever compromising on craft.

Her hands-on philosophy, combined with the firm's deep expertise in cardiology, multi-specialty groups, and complex payer mixes, is the reason clients stay for decades — not contracts.

35+
Years Leading EKMP
100%
Founder-Led
NY
Headquartered
What We Do

A full revenue cycle, handled with care from first claim to final reconciliation.

We offer the complete spectrum of medical billing and revenue cycle consulting — designed for practices that expect more than a service provider.

— 01 / Billing

Medical Billing & Coding

Accurate claim submission, coding audits, and clean-claim optimization across specialties — with particular depth in cardiology and multi-specialty practices.

— 02 / Revenue

Revenue Cycle Consulting

End-to-end review of intake, eligibility, charge capture, and collections — identifying leakage and rebuilding workflows for sustained financial performance.

— 03 / Receivables

Accounts Receivable Recovery

Aged-claim resolution, denial management, and structured appeal strategy to recover the reimbursement other firms write off.

— 04 / Compliance

Credentialing & Compliance

Provider credentialing, payer enrollment, and HIPAA-aligned compliance support — keeping practices audit-ready year after year.

— 05 / Reporting

Financial Reporting & Analytics

Monthly performance reporting, KPI dashboards, and actionable insight tailored to physician owners and practice administrators.

— 06 / Advisory

Practice Management Advisory

Strategic guidance on payer contracts, fee schedules, operational structure, and growth — drawing on three decades of practical experience.

Trusted Partnerships

The firms that have stayed.

We are honored to support some of New York's most respected medical practices — relationships built over years, sustained by results.

— 01
Medical Office of Manhattan
Multi-Specialty · NYC
— 02
Manhattan Cardiology
Cardiovascular Care · NYC
— 03
…and a discreet portfolio of long-tenured practices
Confidential
Leadership

A small team. A long memory.

EKMP is led by a tight-knit group whose combined tenure speaks louder than any sales pitch.

M

Mary Monong

CEO & Founder

Founder of EKMP Billing Consulting. Over 35 years dedicated to the practice of medical billing, revenue cycle integrity, and the relationships that hold a practice together.

D

Darrell Martinez

VP & Accountant

Vice President and lead Accountant. Oversees the firm's financial operations and provides advisory-grade reporting to physician partners and practice owners.

B

Brendalyn Manzon

Operations Manager

Operations Manager. Directs day-to-day workflows, coordinates billing teams, and ensures every client engagement runs with precision and accountability.

Begin a Conversation

Let's talk about your practice.

Whether you're a single-specialty practice or a multi-physician group, we begin every relationship with a quiet, no-obligation consultation.

"We answer the phone. We return the email. We do the work."

Office
New York, NY
General Inquiries
billing@onesourcebilling.com
Telephone
(551) 232-2746
Hours
Monday – Friday
9:00 AM – 6:00 PM ET