Among area public and private facilities offering developmental assessments:

Public

County and city school systems' Child Find programs offer developmental assessments free to any family concerned about their pre-school child's development. County and city Health or Human Resources departments offer Early Periodic Screening and Diagnostic Treatment (EPSDT) to families who meet income requirements for medical assistance. Several Health or Human Resources departments offer assessments for all residents, regardless of medical-eligibility, or ability to pay. The numbers to call for these programs:

District: Child Find, 724-4022; Comprehensive Pediatric Care, 673-6750 (sliding scale fees up to $55, but no one turned away because of inability to pay).

Montgomery County: Child Find, 279-FIND (3463); DESC Developmental Evaluation Services for Children, 593-5280 (birth to 5-year-olds with two known or suspected delays who are not in any other school program; no fees; comprehensive assessment).

Prince George's County: Child Find, 262-6122; Health Department, 794-6800.

Northern Virginia: Diagnostic and Evaluation Clinic, 558-2351 (state-run program for residents of Northern Virginia; evaluates children birth through 21 years of age; sliding scale fee up to $249 for full study).

Alexandria: Child Find, 998-2175; Well-Baby Clinic, 838-4414 (EPSDT-eligible families and others who meet county income-eligibility requirements).

Arlington: Child Find, 558-2683; Parent Information Education (PIE), 558-2811 (assessments of infants through 2 1/2-year-olds who are experiencing delays or are at risk; no fee for assessment which is part of overall treatment program, sliding scale fee up to $30 a month).

Fairfax: Child Find, 560-5344; Daytime Development Center, 691-2751 (birth through 30 months, residents of Fairfax, Falls Church and Fairfax City no fee); Child Evaluation Clinic, 691-2429 (3 years and older, fee).

Falls Church: Child Find, 241-7696.

Private (Fees depend on extent of testing)

Children's Hospital National Medical Center, 745-5000. By referral to appropriate department such as neurology, speech and hearing.

Georgetown University's Child Development Center, 625-7676; assessment, follow-up, therapy and nursery program.

Howard University Child Development Center, 636-6973. Diagnosis, treatment, evaluation, counseling and follow-up of children (birth through adolescence) with developmental problems.

Regional Center For Infants and Young Children, 587-8108 (Silver Spring). Assessment, diagnosis, evaluation, therapy, nursery school program. Also sponsors Parent's Place where well-baby assessments are available.