About LAYNE KUMETZ. Layne Kumetz is a women's health care provider established in Los Angeles, California and her medical specialization is obstetrics & gynecology. The NPI number of Layne Kumetz is 1033249941 and was assigned on March 2007. The practitioner's primary taxonomy code is 207V00000X with license number A91538 (CA). The provider is registered as an individual and her NPI record was ....