Not sure if you have received any feedback, but in case you didn't, here is a link to the website of the society for mfm with a physician locator.
https://www.smfm.org

I think there's a board policy against making referrals to specific physicians in forum posts, but if anyone would be willing to send me a private message, I have a cousin with a history of preeclampsia who may need a perinatal specialist in the New Jersey area. Specifically near Hightstown, NJ, and I think her delivery is planned for Princeton-Plainsboro.
Thank you in advance, and I hope it's OK to ask!! :)