
WHO WE SERVE · MEDICAL & PROFESSIONAL PRACTICES
Accounting and tax for Rancho Cucamonga medical and professional practices
An estimated 13% of the physician offices in the ZIP codes 91701, 91730, 91737 and 91739 that serve Rancho Cucamonga, California, have 10 or more employees. Brent Tucker, CPA, keeps the books for the city's medical and professional practices.
Sound familiar?
More owners, more entities, more returns.
As a practice adds partners or separate entities, the filings multiply. The practice’s returns are coordinated with each owner’s return.
You need a clearer view of how the practice is performing.
Monthly statements show what comes in, what it costs to run the practice, and what remains — explained in plain terms.
A major decision is on the horizon.
A new provider, new equipment, a second location. Talk it through with Brent before you commit, with the tax consequences in view.
Your situation isn’t on this list? Tell us about it — every engagement starts with a conversation.
How we help.
Monthly accounting
Current books and financial statements.
Business and owner returns
Prepared together.
Services and starting prices.
- 01
Accounting + Tax + Planning
From $900/moMonthly accounting and reporting, business and owner tax returns, proactive tax planning and year-round CPA access.
Founding Client Rate: $825/month for your first 12 months when you engage by March 31, 2027. Terms
- 02
Monthly Accounting
From $400/moTransaction categorization, account reconciliations, financial statements and regular accounting support.
- 03
Tax Preparation
From $300Individual returns (federal and one state) from $300; business returns from $750.
Starting prices. Your scope and price are agreed in writing before work begins.

Work directly with Brent.
Licensed CPA · 10+ years in public accounting · Member, AICPA and MICPA
Brent has served medical and professional-services clients throughout his career, at a boutique firm and at a large national accounting and advisory firm.
Brent Tucker is a CPA licensed in Michigan and serves clients in other states under applicable CPA mobility provisions.
More about BrentRancho Cucamonga at a glance
198
physician offices with paid employees in the ZIP codes 91701, 91730, 91737 and 91739 that serve Rancho Cucamonga
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023
13%
share of physician offices with 10+ employees (estimate)
Source: estimate derived by Tucker from Census ZIP Code Business Patterns 2023; not a published figure
24.7
physician offices per 10,000 tax returns filed in its ZIP codes
Source: derived by Tucker from Census ZIP Code Business Patterns 2023 and IRS Statistics of Income ZIP code data, tax year 2022
Tax offices for Rancho Cucamonga medical practices
City of Rancho Cucamonga Business Licensing Division
City business tax and licenses.
10500 Civic Center Dr., Rancho Cucamonga, CA 91730
Phone (909) 919-2948
San Bernardino County Auditor-Controller/Treasurer/Tax Collector (ATC)
County property tax collection.
Phone (909) 387-8322
California Franchise Tax Board (income tax)
State tax and revenue agency.
Phone 800-852-5711
IRS Taxpayer Assistance Center - San Bernardino
Federal tax help in person.
290 N. D St., San Bernardino, CA 92401
Phone (909) 388-8108
Census ZIP Code Business Patterns 2023 counts 198 physician offices with paid employees in those ZIP codes, which works out to 24.7 physician offices per 10,000 tax returns filed, a ratio Tucker derived.
The City of Rancho Cucamonga Business Licensing Division is the city office for local taxes, and the San Bernardino County Auditor-Controller/Treasurer/Tax Collector (ATC) collects property tax in San Bernardino County.
The California Franchise Tax Board (income tax) is the state office, and the IRS Taxpayer Assistance Center - San Bernardino is the federal one. Brent prepares business and owner returns together for medical and professional practices in Rancho Cucamonga.
Source: each office's official website, checked October 16, 2026.
GET STARTED
Let's talk about your numbers.
Tell us a little about your business or situation, and Brent will reply personally. No office visit needed — meetings are by phone or video, wherever you’re based.
Call 888-762-4370 · Email brent@brenttuckercpa.com · Prefer to pick a time? Book a consultation online