Total Cycles
242
Reported 2022
Medical Disclaimer: This data is for informational purposes only. Success rates are influenced by patient age, diagnosis, and treatment type. Do not use this data alone to choose a fertility clinic. Consult a board-certified reproductive endocrinologist.
CDC NASS 2022 242 ART cycles Texas
Houston Infertility Clinic, Sonja Kristiansen, MD
Houston Infertility Clinic, Sonja Kristiansen, MD reported a 12.3% overall live-birth rate across 242 ART cycles in Houston, Texas (CDC NASS 2022).
Clinic verdict · CDC NASS 2022
Houston Infertility Clinic, Sonja Kristiansen, MD's IVF live-birth rate for patients under 35 is 12.4%, 36 points below the national average of 48%. Compare it across age groups and against the state below, and remember age is the strongest driver of IVF success.
12.3% Overall live birth
12.4% Under 35
242 Cycles, 2022
48% National, under 35
Where Houston Infertility Clinic, Sonja Kristiansen, MD sits among U.S. clinics
Overall CDC live-birth-rate band, 406 reporting clinics
This clinic
Overall Success Rate
12.3%
Live births per cycle
-23.1pp vs TX avg
Rate Under 35
12.4%
Peak fertility cohort
Single Embryo Transfer
9.5%
ASRM-aligned safety metric
SET adherence vs national reference
Single-embryo-transfer rate is an ASRM-aligned safety metric, higher SET reduces multi-pregnancy and OHSS risk.
Houston Infertility Clinic, Sonja Kristiansen, MD SET rate 9.5%
78% national reference
Share of transfers using one embryo only
Success Rates by Age Group
Using own eggs (fresh + frozen cycles). The CDC reports patients over 40 in two separate brackets, 41–42 and 43+, shown here individually rather than combined.
Under 35 12.4%
35–37 11.1%
38–40 22.7%
41–42 Not reported
43+ Not reported
Success rate = live births per ART cycle started. Source: CDC NASS 2022.
Cycle Breakdown
- Total Cycles
- 242
- Fresh Cycles
- 124
- Frozen Cycles
- 118
- Years Reporting
- 3
- Single Embryo Transfer %
- 9.5%
Services Available
- × Donor Egg Available
- ✓ Gestational Carrier
What the CDC NASS Data Shows for Houston Infertility Clinic, Sonja Kristiansen, MD
Houston Infertility Clinic, Sonja Kristiansen, MD reported cycle outcomes to the CDC National ART Surveillance System for the 2022 reporting year, with 3 years of cumulative reporting history. The clinic performed 242 total ART cycles, split between 124 fresh and 118 frozen embryo transfer cycles. The overall success rate, live births per cycle started, was 12.3%. That is 23.1 percentage points below the Texas state average of 35.4%, which may reflect a more complex patient case mix rather than quality of care.
Age remains the dominant variable in IVF outcomes. At Houston Infertility Clinic, Sonja Kristiansen, MD, patients under 35 saw a 12.4% success rate, compared with 11.1% for ages 35–37 and 22.7% for ages 38–40. Ages 41–42 reported N/A, and ages 43+ reported N/A. Single embryo transfer (SET) was used in 9.5% of cycles, a metric ASRM associates with lower multi-pregnancy rates.
Service availability also affects which clinics fit which patients. Houston Infertility Clinic, Sonja Kristiansen, MD does not report donor egg services in the latest NASS filing and does offer gestational carrier (surrogate) cycles. These services matter for patients with diminished ovarian reserve, same-sex couples, or medical conditions that preclude carrying a pregnancy. Every figure above is a public federal disclosure, not editorial commentary, PlainFertility is not affiliated with Houston Infertility Clinic, Sonja Kristiansen, MD or the CDC, and these statistics are not a substitute for an evaluation by a board-certified reproductive endocrinologist who can assess your individual diagnosis, history, and treatment options.
Read these figures as a starting point, not a verdict. The CDC reports live births per intended egg retrieval, so the percentages already account for cycles that never reached embryo transfer, a more conservative measure than the per-transfer pregnancy rates clinics sometimes advertise. Group results describe what happened for past patients; they cannot predict an individual outcome, which depends on diagnosis, ovarian reserve, sperm quality, embryo genetics, and the protocol a physician recommends. A single reporting year can swing for lower-volume clinics, so cumulative multi-year results and a candid consultation carry more weight than any one published number.
Historical Success Rates
| Year | Total Cycles | Overall | Under 35 | 35–37 | 38–40 | 41–42 |
|---|---|---|---|---|---|---|
| 2022 | 242 | 12.3% | 12.4% | 11.1% | 22.7% | N/A |
| 2021 | 321 | 15.9% | 19.0% | 24.1% | 11.5% | N/A |
| 2020 | 223 | N/A | N/A | N/A | N/A | N/A |
Frequently Asked Questions
Houston Infertility Clinic, Sonja Kristiansen, MD's IVF success rate
Houston Infertility Clinic, Sonja Kristiansen, MD reports an overall IVF success rate of 12.3% across 242 reported cycles. Rates by age group vary, patients under 35 generally see higher success rates.
How should I interpret these success rates?
IVF success rates depend on patient age, diagnosis, embryo type, and treatment protocol. A clinic with a lower success rate may treat more complex cases. Always consult a board-certified reproductive endocrinologist who can evaluate your individual situation.
Where does this data come from?
All data is sourced from the CDC's National ART Surveillance System (NASS), which requires all ART clinics in the US to report their cycle outcomes annually under the Fertility Clinic Success Rate and Certification Act of 1992.
What is the difference between fresh and frozen IVF cycles?
Fresh cycles use embryos that have not been frozen, eggs are retrieved, fertilized, and transferred within the same treatment cycle. Frozen cycles use previously cryopreserved embryos. Houston Infertility Clinic, Sonja Kristiansen, MD reported 124 fresh cycles and 118 frozen cycles. Many clinics now favor frozen embryo transfers (FET) due to improved vitrification technology and comparable or higher success rates.
What does single embryo transfer (SET) percentage mean?
Single embryo transfer percentage indicates how often a clinic transfers just one embryo per cycle rather than multiple embryos. A higher SET rate generally reflects adherence to current ASRM guidelines aimed at reducing multiple pregnancies. Houston Infertility Clinic, Sonja Kristiansen, MD reports a SET rate of 9.5%. Higher SET rates typically mean fewer twins and triplets, which reduces pregnancy complications.
Does this clinic offer donor egg or gestational carrier services?
Houston Infertility Clinic, Sonja Kristiansen, MD does not currently list donor egg services and does offer gestational carrier (surrogate) services per the latest CDC NASS report. Contact the clinic directly to confirm current service availability and discuss whether these options are appropriate for your treatment plan.
PlainFertility Guides
Data source: CDC National ART Surveillance System (NASS). PlainFertility is not affiliated with the CDC or this clinic.
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from the CDC National ART Surveillance System (NASS). See our methodology for details. Retrieved and formatted by PlainFertility Editorial
Every figure on PlainFertility is rendered directly from CDC National ART Surveillance System source data, no number is typed in by an editor. This page draws directly on CDC National ART Surveillance System source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.