Data sources and methodology

Every figure on IVF Clinic Rates comes from the CDC National ART Surveillance System (NASS). This page explains which CDC files are used, how their conventions are shown, and the rules that decide which pages are published and indexed.

Current dataset

• 504 clinic records from the CDC 2022 clinic list: 449 published with 2022 success rates, 55 shown with address and phone only (clinics that did not report 2022 cycles, or that the CDC lists as closed).
• 50 states and territories (DC counted as one) with at least one published clinic; 11 city pages (cities with 5 or more clinics).
• 449 clinic pages are open to search engines; 449 published records carry a CDC-listed phone number.

Sources

The CDC NASS 2022 Final release (data released December 18, 2024) is published as three datasets on data.cdc.gov: Services and Profiles (clinic name, address, phone, medical director, the five CDC-tracked services, cycle totals, SART membership, lab accreditation), Clinic Data Summary (the number of intended retrievals, retrievals and transfers by age band, reasons for ART, shares of frozen, ICSI and PGT transfers) and Success Rates (every live-birth measure by age band and by donor egg or embryo source, with the CDC's footnotes). Clinics are required by the Fertility Clinic Success Rate and Certification Act to report their cycles to the CDC. The count after each host is how many published clinic pages cite it.

• data.cdc.gov: cited by 449 clinic pages (CDC open-data portal: the three National ART Surveillance System (NASS) 2022 Final datasets described above).
• geocoding.geo.census.gov: cited by 2 clinic pages (US Census Bureau geocoder, used only for coordinates when the CDC point falls outside the clinic's state).

How the CDC figures are shown

• Fractions. The CDC footnote reads "Fractions are used for rates with denominators less than 20". Such cells are printed as "9 of 15", never converted to a percentage, and the clinic is marked as a small sample in state and city tables.
• Suppressed cells. The CDC asterisk means "Reported sample size of 1 through 4 have been suppressed"; values that could be used to derive a suppressed cell are suppressed too. These cells are shown as a dash. Nothing is interpolated.
• No cycles. Where the CDC footnote reads "No cycles meeting this criterion were reported", the CDC file shows 0.0. The page shows "No cycles reported", never 0%, and does not set the US figure beside it. The same applies when the cell's own denominator (intended retrievals, retrievals or transfers) is zero.
• No live births. "Average intended egg retrievals per live birth" cannot be calculated when a band had no live births; the CDC file shows 0, and the page shows "No live births reported".
• Cumulative rates. Following the CDC, own-egg rates per intended and per actual retrieval include embryo transfers within 1 year after the retrieval; rates per transfer count each transfer on its own.
• Statuses. "Open" and "Reorganized" clinics with success-rate rows are published. "Non-reporter" clinics (no 2022 report filed) and clinics the CDC marks "Closed" are shown with address and phone only and kept out of search results.
• National benchmark. The "US" figure beside each cell is the CDC's own national aggregate row from the same release, not an average computed here.
• No ranking. State and city tables list clinics alphabetically (readers can re-order by cycle volume). The CDC cautions that comparisons between clinics should be made with caution, and small samples and patient mix make a ranking on one cell misleading.

What gets indexed

A clinic page is submitted to search engines when the CDC published 2022 success-rate rows for the clinic and its status is Open or Reorganized. Clinics without a 2022 report, and closed clinics, stay on the site with a noindex tag. A state page is indexed when it has at least one published clinic, because the directory is the complete national list; a city gets its own page when it has 5 or more clinics.

What is left out on purpose

• Ratings, reviews, "best clinic" lists and rankings of any kind.
• Rates the CDC suppressed, or any figure that would have to be estimated, averaged or converted from a fraction.
• Prices and insurance details, unless quoted from a named public source.
• Medical advice: the pages describe what the CDC published, not what is right for any patient.

Known limitations

The newest final CDC data covers cycles started in 2022, because births from those cycles can occur the following year; it was released on December 18, 2024. Clinic names, addresses, phone numbers and medical directors are as reported for 2022 and may have changed. The CDC counts cycles, not patients, so a patient with several cycles in the year appears more than once. Rates describe a clinic's past patients and depend on who those patients were; they are not a measure of clinic quality and cannot predict an individual outcome.

Editorial process

The data on this site is compiled from the CDC's published National ART Surveillance System files by the editor, Berkcan K. A script turns each CDC row into the tables on the clinic pages and is re-run for each CDC release; figures are copied as published, never re-calculated, estimated or adjusted. The guides are written by the editor and cite the CDC and other public sources line by line.

No physician, embryologist or statistician has reviewed the site. There is no medical review of the pages, and nothing here is medical advice.

Read the rates with a clinician. A reproductive endocrinologist can explain what a clinic's figures mean for your age, diagnosis and history, and which measures matter for your treatment plan.

Corrections

Wrong address, phone or name? Use the correction form or the "Suggest a correction" link at the bottom of any clinic page. Success-rate figures are the CDC's and cannot be changed on request; if a clinic believes its CDC report is wrong, the route is the CDC's own data verification process, and we will update the page when the CDC publishes a revision.