Ching-Ya Tseng

About

What stands out in Ching-Ya Tseng’s career is not a single post but a run of them: Laboratory Director at Taipei Fertility Center, then at Chang’s Fertility Center, and now at NUWA Lab. Reproductive laboratories change technical leads fairly often, so a path that keeps climbing within the same leadership tier across three separate Taipei clinics reads as continuity of responsibility rather than a series of unrelated jobs. Each of those titles sits at the level where laboratory specifications and process checks are owned.

The training underneath is at the other end of the microscope. Postgraduate study was in pathology and parasitology at National Defense Medical Center, a discipline built on reading cells and tissues by their structure. Embryo work asks for the same visual judgment — the appearance of the oocyte, the zona pellucida, the polar body, fragmentation, the inner cell mass — so the academic method and the daily task share a root. The first clinical role, senior embryologist at the Mackay Memorial Hospital reproductive center, places that bench foundation inside a teaching hospital before the director titles.

Taken together, this is a career that moved through different kinds of laboratory rather than up within one. A medical-center reproductive unit, a specialised fertility clinic and a chain fertility group do not run on identical equipment, staffing or documentation, and having led labs in each shape is where knowledge of process differences and checkpoints tends to come from.

Clinical Expertise

• Laboratory technical management: at director level, accountability for operating standards, procedure documentation, staff division of labour and the process reviews that hold cycle-to-cycle consistency.
• IVF and embryo culture: picking up from retrieval at the end of stimulation through sperm and egg preparation, fertilisation, day-by-day culture and assessment until an embryo reaches transfer or freezing stage.
• Gamete and embryo cryopreservation: running vitrification and the survival assessment after thaw, one of the laboratory steps that most directly affects whether a stored cycle is still usable later.
• Laboratory support for PGT-A: preimplantation chromosome screening needs trophectoderm cells taken at the blastocyst stage and packaged and shipped so the sample stays valid — biopsy quality and handling fall to the lab lead.
• Pathology and laboratory-science background: the pathology method of structural reading transfers to judging oocyte maturity and embryo morphology, both of which rest on visual assessment.

Why Choose Ching-Ya Tseng

The director role repeated across three clinics. What links Taipei Fertility Center, Chang’s Fertility Center and NUWA Lab is the job title, held one after another rather than alternating back to the bench. For a patient whose real question is who is answerable for a laboratory, a continuous director-level trail is a firmer answer than a general statement of years served.

The operating years were at a teaching hospital. Mackay Memorial Hospital’s reproductive center was the first post, and it already carried the senior embryologist title. A teaching-hospital reproductive unit typically sees high cycle volume against defined internal standards, and the training intensity and range of cases at that stage form the base under the later management posts.

Laboratories of different shapes, not just one. A medical-center reproductive unit, a standalone fertility clinic and a chain group differ in equipment, staffing depth and how far procedures are written down. Serving as director in more than one model gives practical experience of how the same technique adapts to different constraints, which matters when a course of treatment or a frozen inventory has to move between sites.

A pathology degree behind the visual work. Embryo grading leans heavily on morphology — the oocyte and its polar body, the zona, fragmentation, inner cell mass and trophectoderm are all read by eye. A research training in pathology is the same structural-reading method applied to a different specimen.

Professional Affiliations

Ching-Ya Tseng trained in pathology and parasitology at National Defense Medical Center, at master’s level. The posts run from Senior Embryologist at the Mackay Memorial Hospital reproductive center, through Laboratory Director at Taipei Fertility Center and then at Chang’s Fertility Center, to Laboratory Director at NUWA Lab. That spans the bench and the leadership of three Taipei reproductive laboratories, and the current title is a laboratory technical director rather than a clinical physician.

Suitable For

Patients weighing the continuity of laboratory leadership: the treating physician sets the protocol, but the eggs and embryos are actually handled by the laboratory, so a director whose leadership roles run across three clinics is one basis for assessing who owns that side of care.

Cycles needing embryo freezing and thawing: accumulating embryos over several retrievals, or storing leftover embryos after a transfer, depends on consistent freezing and reliable survival at thaw — the process the current laboratory director is responsible for running.

Cases that require PGT-A screening: older patients and those with recurrent loss or repeated implantation failure often screen at the blastocyst stage, where the sampling and shipping that decide a usable result are held at the laboratory end.

Repeated implantation failure needing a laboratory-side review: once the lining and the embryo’s appearance have been examined and no cause stands out, culture conditions, the freeze-thaw step and biopsy handling become the next things to inspect.

Advanced maternal age where egg quality needs laboratory support: egg number and maturity vary widely in these cases, and same-day decisions about handling and culture strategy usually rest with senior staff and the laboratory director rather than a fixed protocol.