Lawmakers in California will begin debate next month on a bill that would require doctors to screen new moms for mental health problems – once while they’re pregnant and again after they give birth.

But many obstetricians and pediatricians bristle at the idea, saying they are afraid to screen new moms for depression and anxiety.

“What are you going to do with those people who screen positive?” asked Laura L. Sirott, MD, an ob.gyn. who practices in Pasadena. “Some providers have nowhere to send them.”

Nationally, depression affects up to one in seven women during or after pregnancy, according to the American Psychological Association.

And, of women who screen positive for the condition, 78% don’t get mental health treatment, according to a 2015 research review published in the journal Obstetrics & Gynecology.

Dr. Sirott said her patients give a range of reasons why they don’t take her up on a referral to a psychologist: “ ‘Oh, they don’t take my insurance.’ Or ‘my insurance pays for three visits.’ ‘I can’t take time off work to go to those visits.’ ‘It’s a 3-month wait to get in to that person.’ ”

She said it’s also hard to find a psychiatrist who is willing to treat them and who is trained in the complexities of prescribing medications to pregnant or breastfeeding women, especially in rural areas.

“So it’s very frustrating,” Dr. Sirott said, “to ask patients about a problem and then not have any way to solve that problem.”

Moms are frustrated, too. After the baby comes, no one asks about the baby’s mother anymore.

Wendy Root Askew struggled for years to get pregnant, and when she finally did, her anxiety got worse. She couldn’t stop worrying that something would go wrong.

“And then, after I had my son, I would have these dreams where someone would come to the door and they would say, ‘Well, you know, we’re just going to wait 2 weeks to see if you get to keep your baby or not,’ ” Ms. Root Askew said. “And it really impacted my ability to bond with him.”

She likes California’s bill, AB 2193, because it goes beyond mandated screening. It would require health insurance companies to set up case management programs to help moms find a therapist, and connect obstetricians or pediatricians to a psychiatric specialist.

“Just like we have case-management programs for patients who have diabetes or sleep issues or back pain, a case-management program requires the insurance company to take some ownership of making sure their patients are getting the treatment they need to be healthy,” said Ms. Root Askew, who is now advocating for the bill on behalf of the group 2020 Mom.

Health insurance companies haven’t taken a position on the legislation. It’s unclear how much it would cost them to comply, because some already have infrastructure in place for case-management programs, and some do not. But there is consensus among insurers and health advocates that such programs save money in the long run.

“The sooner that you can get good treatment for a mom, the less expensive that condition will be to manage over the course of the woman’s life and over the course of that child’s life,” Ms. Root Askew said.

Some doctors still have their objections. Under the bill, they could be disciplined for not screening. Some have said they worry about how much time it would take.

The health care system, and the incentives, aren’t set up for this sort of screening, Dr. Sirott said.

“Currently, I get $6 for screening a patient,” she said. “By the time I put it on a piece of paper and print it, it’s not worth it.”

It’s not clear whether the direct and indirect costs of screening would be worth it to the patients, either. Four other states – Illinois, Massachusetts, New Jersey, and West Virginia – have tried mandated screening, and it did not result in more women getting treatment, according to a 2015 study published in Psychiatric Services.

Even with California’s extra requirement that insurance companies facilitate care, women could still face high copays or limits on the number of therapy sessions. Or, a new mother might be so overwhelmed with care for her newborn that it would be difficult to add anything to her busy schedule.

What does seem to work, according to the study of mandated screening in other states, is when nurses or mental health providers visit new moms at home.

“Despite abundant goodwill, there is no evidence that state policies are addressing this great need,” the study’s authors report.

Supporters of California’s proposed bill, however, say doctors need to start somewhere. Screening is the first step in recognizing the full scope of the problem, said Nirmaljit Dhami, MD, a Mountain View, Calif., psychiatrist. Women should be screened on an ongoing basis throughout pregnancy and for a year after birth, Dr. Dhami said, not just once or twice as the bill requires.

“I often tell doctors that if you don’t know that somebody is suicidal, it doesn’t mean that their suicidality will go away,” she said. “If you don’t ask, the risk is the same.”

This story is part of a partnership that includes KQED, NPR, and Kaiser Health News. KHN’s coverage of women’s health care issues is supported in part by The David and Lucile Packard Foundation. KHN is a nonprofit news service covering health issues. It is an editorially independent program of the Kaiser Family Foundation that is not affiliated with Kaiser Permanente.

Docs worry there’s ‘nowhere to send’ new and expectant moms with depression