How to Pick a Fertility Clinic Beyond SART Success Rates

Every fertility clinic comparison guide tells you to "check the SART rates." Then you click through to the actual SART data and find this disclaimer printed across the top of the report:

"A comparison of clinic success rates may not be meaningful because patient medical characteristics, treatment approaches, and entrance criteria for ART may vary from clinic to clinic."

SART, the body that publishes the data, is telling you not to use the data the way most guides tell you to use it. The CDC publishes the same warning on its ART Success Rates report. So how are you actually supposed to choose a clinic?

This is the question almost no one answers honestly. Here is what really matters.

Why SART rankings mislead patients

SART and CDC outcome data is reported per clinic and per age band, but clinics differ enormously in who they accept. Some clinics decline patients with diminished ovarian reserve, BMI over 35, or repeated failed cycles — which pushes their reported success rates up. Others specialize in those exact patients and post lower numbers because they take on harder cases.

A clinic that reports a 55% live birth rate per transfer for women under 35 may simply be cherry-picking; another clinic at 42% may be doing better work on patients no one else would treat. Without patient-level adjustment for diagnosis, AMH, prior cycles, and BMI, the headline percentage is closer to marketing than to science.

This is exactly why The Fertility Link does not rank clinics by SART numbers. We score on what is actually predictive of your experience.

The 10 factors that actually matter

1. Diagnosis specialty fit

The single most important question: does this clinic have meaningful experience with patients like you? A clinic that does 800 cycles a year but mostly basic ovulatory dysfunction is not necessarily the right choice for severe male factor, recurrent implantation failure, or stage IV endometriosis. Ask:

• "How many DOR/PCOS/endo/MFI/RIF patients did you treat last year?"
• "Do you have a protocol specifically for [your diagnosis]?"

2. Cycle volume

FertilityIQ and others have observed that clinics doing at least 200 cycles per year correlate with slightly better outcomes — likely because the lab embryologists, nurses, and physicians are doing the procedures often enough to maintain skill. Below ~100 cycles/year, you start seeing more lab variation. Volume is a proxy, not a guarantee, but it matters.

3. Multi-doctor coverage vs single-MD continuity

Some patients want one physician through their entire journey. Others want the practical reality that if their lead RE is on vacation when retrieval timing hits, someone else equally skilled is available. Ask the clinic which model they run and decide which matches your personality and risk tolerance.

4. In-house vs send-out lab

Embryology labs are where IVF cycles are actually won or lost. A clinic with an in-house lab controls quality directly. A clinic that sends embryos to a regional lab introduces transport risk and a second institution's quality system. Neither is automatically better — but you should know which model your clinic uses and what the lab's KPIs are (blastocyst conversion rate, freeze-thaw survival rate).

5. Weekend and holiday monitoring

This sounds minor and is enormous. Egg retrieval timing is dictated by your follicles, not the calendar. A clinic that closes Saturdays and Sundays and routinely triggers patients early to avoid weekend retrievals is making a logistical decision at the cost of egg quality. Ask: "Do you trigger and retrieve on weekends?"

6. Portal and communication SLA

Will a nurse return your call same-day? Is there a patient portal with results within 24 hours? Can you message your care team without playing phone tag? These things will not show up on SART data, but they will define your day-to-day experience for months.

7. LGBTQ+ inclusivity (if relevant)

For same-sex couples, single parents by choice, and trans patients: ask how many patients like you the clinic treated last year, whether intake forms use inclusive language, and whether they have experience with reciprocal IVF, known donor coordination, and gender-affirming care intersections.

8. On-site reproductive urologist for male factor

About 40-50% of infertility involves a male factor component. If your situation includes any MFI, a clinic with an on-site or closely partnered reproductive urologist (offering TESE, micro-TESE, varicocele repair) saves you months of coordination compared with being referred out.

9. Insurance/mandate participation

In mandate states (NY, IL, MA, CT, NJ and others) and in provinces with funded programs (Ontario's OFP, Quebec, PEI, NB, NL, BC's new program), not every clinic participates. Verify directly. A clinic with a great reputation that does not accept your funding is the wrong clinic.

10. Cost transparency on add-ons

A clinic that quotes a "base IVF cycle" of $12,000 and then adds $1,500 ICSI, $4,000 PGT-A, $800 assisted hatching, $1,200 EmbryoGlue, $900 ERA — without telling you up front — is hiding the real cost. Ask for an itemized estimate including all add-ons they typically recommend for your situation.

Use the Fertility Link Navigator to see clinics matched to your specific province and diagnosis — we never rank by SART data.

Questions to bring to your first consult

Print this list and bring it. The clinic that answers them clearly is the clinic that will treat you clearly.

1. How many cycles did you do last year? How many for patients with my diagnosis?
2. Is your lab in-house? What is your blastocyst conversion rate? Freeze-thaw survival rate?
3. Do you trigger and retrieve on weekends?
4. What is your average nurse response time?
5. Will I see the same physician every visit, or rotate through a group?
6. What add-ons do you typically recommend for someone with my profile, and what is the evidence for each?
7. What is your cancellation rate, and what counts as a cancelled cycle in your reporting?
8. What is your itemized all-in cost including all recommended add-ons?
9. Do you offer a money-back or shared-risk program? What are the eligibility criteria?
10. If my first cycle fails, what is your protocol for the second cycle review?

Why "best clinic in [city]" rankings are mostly marketing

The "Top 10 Fertility Clinics in [City]" lists you find via Google are almost always:

• Paid placement
• Generated from patient review scrapes (which skew toward bedside manner, not clinical outcomes)
• Recycled SART numbers with the disclaimer stripped off
• Or written by SEO agencies with no clinical input at all

Patient reviews matter for patient experience (communication, wait times, billing clarity) but tell you almost nothing about clinical excellence (lab quality, embryologist skill, protocol sophistication). Use reviews for the former. Use the 10 factors above for the latter.

A three-step process you can actually run

1. Shortlist 3-5 clinics in your geographic and funding-eligible range.
2. Call each one and ask the 10 questions above. Time their response speed while you are at it.
3. Book consults with the top 2-3. A clinic that won't book you a consult within 4-6 weeks is signaling something about its operational capacity.

Get matched to clinics that fit your situation

Register at The Fertility Link to see your scored clinic matches based on what actually matters for your situation — diagnosis fit, funding eligibility, weekend monitoring, add-on transparency, and more. We pull data clinics publish themselves, layer in patient-reported experience metrics, and never sort by SART success rates because SART itself says you should not. Browse by province or jump straight to your clinic matches.