I’ve been in digital marketing for over 20 years. I’ve seen every agency model, every pitch deck, and every contract trap that exists. And I can tell you with certainty that the agency you hire for your Google Ads will either be the best investment you make or the most expensive mistake you make. There is very little in between.
The problem isn’t that good agencies don’t exist. They do. The problem is that bad agencies are indistinguishable from good ones in the sales process. They use the same buzzwords. They show the same case studies (often fabricated or cherry-picked). They make the same promises. And by the time you realize you picked wrong, you’ve burned through $20,000-50,000 with nothing to show for it.
I’m going to tell you exactly what to look for, what to run from, and what questions to ask so you don’t become another cautionary tale.
Fee structures: what you’re really paying for
Percentage of ad spend (the most common model)
Most Google Ads agencies charge 10-20% of your monthly ad spend as their management fee. Spend $5,000 on ads, pay them $500-1,000 to manage it. Spend $20,000, pay them $2,000-4,000.
Here’s the problem nobody talks about: this model creates a direct financial incentive for the agency to increase your ad spend whether or not it’s productive. If they recommend bumping from $5,000 to $10,000, their fee doubles. That recommendation might be right. Or it might be self-serving. You have no way to tell.
I’ve audited accounts where the agency recommended a 50% budget increase while the existing campaigns had 30% wasted spend on irrelevant search terms. They didn’t need more budget. They needed better management. But better management at the same budget doesn’t increase the agency’s revenue.
Flat monthly fee
A flat fee removes the incentive to inflate spend. The agency charges $2,000/month (or whatever the rate is) regardless of how much you spend on ads. Their revenue doesn’t change when your ad spend changes.
This model aligns incentives better. The agency proves its value by making your campaigns more efficient, not by recommending you spend more. But flat fees tend to be higher at lower ad spend levels, which can be a barrier for smaller practices.
Performance-based fees
Some agencies take a percentage of revenue generated or charge per lead. Sounds ideal on paper. In practice, it’s problematic. Attribution is messy. Did that patient come from Google Ads or from the SEO that’s been building for six months? The agency will claim every lead that came within a mile of their campaigns.
Performance-based models also encourage agencies to prioritize lead volume over lead quality. Getting you 100 junk leads that don’t convert is more profitable for them than getting you 30 qualified leads that become patients.
What I’d recommend
Flat fee with performance bonuses. The base fee covers competent management. Bonuses kick in when agreed-upon metrics (cost per lead, lead-to-patient rate, ROAS) are exceeded. Both sides are aligned. The agency gets paid more for doing better work, not for spending more of your money.
Red flags that should kill the deal immediately
They won’t give you account access
Your Google Ads account belongs to you. Period. If an agency sets up your campaigns in their account, you lose everything when you leave. All the data, all the keyword history, all the quality scores built over months or years. Gone.
Any agency that insists on owning the account or refuses to give you admin access is setting up a trap. They want you dependent on them. Walk away.
They guarantee specific results
“We guarantee first page rankings!” “We guarantee 50 leads per month!” If an agency guarantees specific outcomes on Google Ads, they’re either lying or they’ll define “leads” so loosely that bot clicks and spam form submissions count.
Nobody can guarantee Google Ads results. Google’s algorithm changes constantly. Your competitors change their bids. Market conditions shift. A competent agency can tell you what benchmarks look like (healthcare CPC around $5, conversion rates around 11.6%, cost per lead around $57, per PPC Chief) and commit to hitting or beating them. But guarantees are a red flag.
They lock you into long contracts
Twelve-month contracts with early termination fees. I see it all the time. The agency knows that if you could leave after month three when results are bad, you would. So they lock you in for a year.
A good agency doesn’t need contract handcuffs. Monthly or quarterly agreements with 30-day notice should be standard. If the agency is confident in their work, they don’t need to trap you.
They can’t explain what they’re doing
Ask the agency to walk you through their campaign structure, bidding strategy, and keyword selection. If the answer involves “proprietary methodology” or “our secret sauce” or anything vague enough to belong on a motivational poster, they can’t explain what they’re doing because they’re not doing much.
Competent Google Ads management isn’t mysterious. Keyword research, campaign structure, ad copy testing, landing page optimization, bid management, negative keyword maintenance, and performance reporting. If they can’t articulate each step clearly, they’re not doing all of them.
They don’t talk about your phones
78.2% of Google Ads advertisers fail to profit, per RockingWeb. A massive contributor to that failure rate in healthcare is the disconnect between ad performance and phone handling. Your ads generate calls. Your front desk handles those calls. If the agency doesn’t care about what happens after the click, they’re optimizing half the equation.
An agency worth hiring will ask about your call handling. They’ll want to know if you have call tracking. They’ll ask if they can listen to recorded calls. They’ll tell you when your front desk is losing leads. An agency that only cares about clicks and impressions is an agency that doesn’t care about your revenue.
Questions to ask before signing anything
”Can I see the actual Google Ads accounts of 3 current clients?”
Not case studies. Not PDFs. The live accounts. Any agency can fabricate a case study. Very few can show you a live account with real data. If they cite privacy concerns (legitimate for healthcare clients), ask to see a non-healthcare client account. The management quality will be apparent regardless of industry.
”Who will actually manage my account day to day?”
Agencies sell with senior partners and deliver with junior associates. The person in the pitch meeting is often not the person managing your campaigns. Ask who touches your account daily. Ask how much experience that person has specifically with healthcare PPC. Ask how many accounts that person manages simultaneously.
If your daily manager handles 40 accounts, yours gets about 30 minutes of attention per week. That’s not management. That’s checking in.
”What’s your process for the first 30 days?”
A good agency has a structured onboarding process: account audit, keyword research, campaign build, landing page review, conversion tracking setup, and baseline measurement. If they “jump right in and start optimizing,” they’re winging it.
”How do you handle negative keywords?”
This is a test question. Any competent Google Ads manager knows that negative keywords are the single most impactful lever for reducing wasted spend. If the answer is anything less than “we review search terms weekly and maintain an active negative keyword list,” keep looking.
”What reporting will I receive and how often?”
Monthly reporting is the minimum. Weekly for the first 90 days. The reports should show cost per lead by campaign (not just cost per click), phone call data, form submissions, and ideally lead-to-consultation conversion rates. If they only report on clicks and impressions, they’re measuring activity instead of results.
”What do you need from me to succeed?”
A good agency knows they can’t do this alone. They’ll tell you they need call tracking access, CRM data or at least lead disposition information, landing page approval turnaround, and a commitment to answer their questions about campaign direction.
An agency that says “just leave it to us, we’ll handle everything” is an agency that will optimize in a vacuum and wonder why the results don’t match the reports.
After you hire: what to watch for
Month 1: setup and baseline
The first month should be mostly setup. Account restructuring if needed, new campaign builds, landing page development, conversion tracking verification. Don’t expect results in month one. Expect infrastructure.
Months 2-3: data collection and optimization
Leads should start coming in. The focus is on collecting enough data to make optimization decisions. Are the right keywords driving traffic? Are the landing pages converting? Are the phone calls qualified?
You should be getting weekly updates during this phase. Not polished reports. Quick check-ins on what’s working and what’s being adjusted.
Months 3-6: performance ramping
By month three, you should know your cost per lead by campaign. By month four, you should see that number trending down. By month six, you should have a clear picture of your cost per acquired patient and your return on ad spend.
If you’re at month six and still don’t know your cost per patient, either the agency isn’t tracking it or the campaigns aren’t producing. Either way, it’s time for a hard conversation.
The ongoing relationship
After the ramp-up phase, a good agency relationship looks like this: monthly strategy calls, weekly reporting, quarterly budget reviews, and regular landing page testing. If your agency sends a monthly report and nothing else, they’re in maintenance mode. That might be fine if the campaigns are printing money. If they’re not, you need more engagement.
What I’ve seen work
The practices that get the best results from their agencies share a few characteristics:
They stay involved. They look at the reports. They ask questions. They give feedback on lead quality. They tell the agency when the phones are busy and when they have openings. The practices that hand off everything and never look back are the ones that get mediocre results.
They give honest feedback. “The leads from last month’s Botox campaign were great but the rhinoplasty leads were mostly tire-kickers.” That kind of feedback helps the agency adjust targeting. Without it, they’re guessing.
They fix their own house. When I tell a practice their front desk is losing leads, the good ones train their staff. The bad ones say “that’s not a marketing problem” and keep bleeding patients. It is a marketing problem. The marketing generated the call. The call didn’t convert. Both sides need to work.
We built systems like this for our own clients. Toronto Cosmetic Clinic went from 4 employees to 44, under $100K to seven figures. That happened because the campaigns were managed properly, the tracking was in place, and both sides worked the problem. Not because we had “proprietary methodology.” Because we did the work and tracked the results.
The bottom line
The right Google Ads agency for your practice isn’t the cheapest one, the biggest one, or the one with the flashiest pitch deck. It’s the one that understands healthcare, tracks results to the patient level, communicates regularly, and has a fee structure that aligns their incentives with yours.
Ask the hard questions. Demand account access. Reject long contracts. And remember: if you can’t tell whether your agency is making you money, they probably aren’t.