Medical Billing Companies & Consultants in Walnut Creek, CA

Allied Practice Management Solutions is a small medical billing and practice management firm based in Walnut Creek, California. The company is family-owned and veteran-owned. It works mainly with healthcare providers in the East Bay and the wider Bay Area, and it presents itself as a local alternative to large national billing vendors.

Clients deal directly with a small core staff rather than a rotating call center. Because the firm is nearby, it also offers in-person meetings when a practice wants them.

Background and Team

The business was started by spouses Aaron Klang and Dr. Carlin Kelly after Klang served on active duty in the U.S. Air Force. The owners say his military background shapes the company's focus on discipline and integrity. Dr. Kelly is a trained veterinarian.

She knows firsthand what it takes to balance clinical work with running a practice, and she leads the company with a focus on clear, efficient billing tailored to each client. The owners are backed by billing staff with more than three decades of combined industry experience, which gives the firm working knowledge of current payer rules and compliance requirements.

Claims and Revenue Cycle Services

The firm's main offering is complete claims handling. Before anything is filed, staff check patient and provider data, confirm insurance eligibility and review coding. Electronic claims are sent every day, and the company reports an average turnaround of 24 to 48 hours. Each claim is then tracked for delays, rejections or payer requests for more information.

When a claim is denied, the team finds the cause, fixes any errors, resubmits it and files appeals where needed. Practices get regular reports on claim status, payments and revenue trends. The firm also prepares patient statements and answers patients' billing questions.

Beyond claims, Allied offers several related services:

• Insurance contract renegotiation: reviewing current payer agreements and fee schedules, comparing rates against industry benchmarks, negotiating directly with payers, documenting new terms so they meet regulations, and tracking payer performance afterward
• Provider credentialing: preparing applications, following up with payers and handling revalidations so new providers can start billing sooner
• Compliance and coding updates: following changes to medical codes, payer guidelines and billing rules so practices stay ready for audits
• Administrative support: insurance verification, prior authorizations, help with scheduling, and practice management software, covering both front-office and back-office work

How They Work With Clients

Allied puts weight on communication and clarity. Clients receive plain financial reports and status updates before problems grow. The company says it adapts its approach to each practice instead of selling one standard package. Prospective clients are asked to describe their billing problems when they get in touch.

They can book a free consultation with no obligation and can usually expect a reply within one business day. The firm lists honesty, accuracy and respect as its core values. Its stated goal is to improve practice finances so providers have more time for patients.

For buyers comparing medical billing companies, Allied stands out for its local ownership, its veteran-owned status, direct access to the owners and experienced billers, and services that go beyond claims to include contract renegotiation and credentialing. It is best suited to independent practices in the East Bay and greater Bay Area that want a hands-on billing partner close to home.

AllStars Medical Billing is a revenue cycle management firm with an office in Walnut Creek, California, in the East Bay. It works with healthcare providers nationwide. The company says it supports practices in every U.S. state and has handled work in more than fifty clinical specialties. Its clients range from small independent practices to large hospitals and physician groups. It also lists laboratories, nursing homes, dental offices, DME suppliers and other billing companies among the organizations it serves.

Core billing and coding services

The firm's main offering is outsourced medical billing that covers the claim cycle from submission through to collecting patient balances. Billing engagements include insurance benefit checks, handling authorizations, follow-up on aging accounts receivable, monthly performance reports, review of underpaid claims and analysis of up-coding and down-coding patterns. AllStars also codes emergency room, institutional, professional and out-of-network claims.

The company says its coders hold CPC certification, each has at least five years of experience, and they work with ICD-10-CM, CPT, HCPCS Level II and LMRP guidance. Senior coders and a quality assurance group check assigned codes, and clients can ask for coding audits on a schedule or on demand at no extra charge.

• Medical billing and claims management
• Medical coding and coding audits
• Provider credentialing and payer enrollment
• Eligibility and benefit verification
• Prior authorization
• Patient billing and balance tracking
• Denial management and old A/R recovery
• Out-of-network and dental billing

Credentialing and front-end support

Credentialing is a major part of the business. AllStars prepares insurance applications for providers in any specialty, including labs and DME companies, and follows each file until the payer closes it. Enrollment tasks bundled with credentialing include NPI registration, EDI, ERA and EFT setup, CAQH attestation, PECOS enrollment and directory updates.

On the front end, the team confirms patient coverage and eligibility and gets payer approval for procedures and treatments in advance, with the goal of preventing denials before claims are sent.

How it works with clients

The company runs several client-facing tools: a credentialing tracking system, a secure file transfer portal, a patient portal, an inactive payer tracker, a patient balance tracker and a denial tracking system.

It publishes its own performance figures, including a 98 percent clean claim acceptance rate, monthly denials of about 8 percent, 96 percent electronic claim submission and a 99 percent credentialing success rate. It also says its team averages about ten years of experience and that it lost no clients during 2024 or 2025. Buyers should treat these as self-reported numbers.

Beyond revenue cycle work, AllStars sells IT services to practices, including website development, search engine optimization, social media marketing, IT support and contract developers for web, Android and iOS projects. The company says it is building its own AI-assisted EHR and billing platform to automate repetitive tasks for physicians and billing staff.

It describes specialty-specific approaches for cardiology, psychiatry, ABA therapy, urgent care and laboratories. That could suit Bay Area practices that want one vendor to handle billing, coding, credentialing and practice marketing.

Headquartered in Walnut Creek, Bay Medical Management, LLC manages the business side of a large radiology group owned by its physicians. The clinical partner it serves is Bay Imaging Consultants Medical Group, Inc., which calls itself the biggest privately owned radiology practice in California. Practices comparing billing companies should note that this organization is tied tightly to one group and specializes in imaging. It does not sell multispecialty outsourcing to a broad client roster.

Claims and Revenue Management

The company processes both professional and technical charges. In practice, this covers the radiologist's interpretation fee as well as the facility-side charge for performing the scan itself. Billing and accounts receivable make up one of the seven main divisions within the organization, and that division reports to a Director of Revenue Cycle Management. A radiologist who came on board with the affiliated group credited payer contracting, provider credentialing and revenue cycle supervision with helping the practice run efficiently.

• Submission of professional and technical charges
• Accounts receivable management and collections follow-up
• Complete supervision of the revenue cycle
• Contract negotiations with insurers and providers
• Credentialing for physicians and other clinical staff
• Accounting and financial reporting
• Healthcare-focused IT services
• Clinical operations and routine practice management
• Human resources and workforce administration
• Marketing, brand development and physician relations

Working Relationship With the Practice

Instead of operating at arm's length, the organization serves as an integrated operations team for the group. Its staff works side by side with the radiologists and with partner hospitals, owning finance, compliance, the design of clinical processes and the underlying technology.

For a radiology group, this model connects billing with insurer contracts, provider enrollment and the reporting tools physicians use daily. Exams and reports from the group move into hospital PACS and EHR systems, and the company's IT personnel support those connections.

Clinical Focus and Volume

The organization's work centers on diagnostic and interventional radiology. The group it supports reads more than 1.7 million exams each year, spanning many imaging types:

• MRI, CT and PET scans
• Ultrasound and nuclear imaging
• Mammography and additional breast studies
• Fluoroscopy and bone density testing
• Procedures performed under image guidance

Over 115 of the group's physicians hold diplomate status through the ABR, the national credentialing body for the specialty. These radiologists serve hospitals and freestanding imaging centers across Northern California, and the group also operates outpatient imaging sites in the East Bay that carry ACR accreditation. According to the company, its footprint includes a dozen hospitals plus over 40 outpatient sites and clinics in the area.

History and Staff

The organization has served Bay Area physician groups and imaging facilities since 1998 and states that it has a workforce of over 200 full-time employees. Its senior management consists of:

• A CEO
• A Senior Director overseeing finance
• A Senior Director overseeing operations
• Directors in charge of revenue cycle, IT and HR
• Directors of clinical operations for the east and west regions

The partner radiology group placed fifteenth among practices across the country on the Exemplary 80 list. Organizations looking for a billing resource with deep radiology knowledge may want to take a closer look. Still, potential clients should recognize that the company presents itself mainly as the in-house operations division of its affiliated medical group, not as a standalone vendor courting outside practices.

Olympus Medical Billing, run by Olympus Billing Corp, is an outsourced billing and revenue cycle management firm that has worked with healthcare providers across the United States since 2012. Its clients range from solo practitioners to groups with more than twenty clinicians. The firm reports serving over 200 providers, and it accepts physicians (MD and DO), physician assistants and nurse practitioners as clients.

Specialties Served

The company handles billing for many clinical fields, and it has a strong focus on mental and behavioral health, where it has a dedicated psychiatric billing brand. Specialties it names include:

• Primary care and family medicine
• Urgent care
• Behavioral and mental health
• Physical medicine
• Physical therapy

Billing Services

Olympus covers the full billing workflow. Its staff enter patient demographics and charges every day and send claims out daily. They say 98 percent of claims are accepted on first submission, and rejected claims are fixed and sent again. Insurer payments are checked, and electronic remittances and paper explanations of benefits are posted to the practice's accounts. Unpaid claims are chased within about a month, and appeals are filed when needed. The full list of services includes:

• Charge entry and demographic data management
• Claim submission, follow-up and appeals
• ERA and EOB payment posting
• Patient statements and answering patient billing questions
• Insurance benefit verification
• Recovery of old and aging receivables
• Provider credentialing support
• Weekly and monthly custom reports

How Engagements Work

Each client gets its own billing manager, who handles the move to Olympus and then manages billing day to day. Clients can reach that manager by phone or email during business hours. The team does not make clients switch systems.

It works inside the practice management software the practice already has, or it helps choose a platform that fits the practice's budget and needs. After a contract is signed, onboarding usually takes two to five business days. Before signing, prospective clients receive more information, a list of references they can call and a sample agreement.

The contract terms are flexible. Agreements run month to month, there is no setup charge, the first thirty days are a free trial, and clients can cancel at any time without a penalty. Fees are a percentage of collections, so the firm is paid from what it collects for the practice. Olympus presents this as a cheaper option than hiring, training and paying benefits for in-house billing staff.

Locations and Background

The company lists its head office in Miami, Florida, and branch phone lines in New York, Chicago, Fort Lauderdale, Houston and Atlanta. A Better Business Bureau listing also puts an office in Walnut Creek, California, in the East Bay near San Francisco.

The firm says it knows each state's billing rules and keeps up with changing insurer policies to stay compliant. Practices comparing billing vendors may find its main appeal is the low-commitment contract, the single point of contact, and its experience across both medical and behavioral health specialties.