SHORELINE, Wash. -- Families came to the defense Wednesday of a pediatrician accused of inappropriate sexual conduct with adolescent patients, as new details emerged about allegations against the doctor, KIRO 7 Eyewitness News reported.

The license of Dr. Bill Schnall, who was once president of the medical staff at Seattle's Children's Hospital and is a former Shoreline School Board president, was suspended Monday because of the allegations. He was also accused by the state Health Department of inappropriately prescribing an amphetamine and Viagra, interfering with the agency's investigation and threatening a patient, records showed.

Margaret Haines, the mother of two of Schnall's patients, came to Schnall's Richmond clinic to offer her support to the doctor's staff.

"It's not true," she said. "I can't imagine that being true."

Haines' two sons, now 15 and 21, have been patients of Schnall since they were born. She said she has nothing but respect for him.

"For somebody to accuse him of this is devastating to everyone that has known him, and it's a devastating thing for him because all he has ever done for the children and for the community is nothing but love," Haines said.

The state Health Department alleges that on multiple occasions, Schnall had a patient, referred to as Patient One, provide a seminal fluid specimen. According to documents obtained by KIRO 7 Eyewitness News, the doctor allegedly requested Patient One provide a sample while visiting Schnall's home last summer.

The doctor allegedly paid more than $40,000 in college tuition for the same man and was known as the "Frat Doc" at the patient's University of Washington fraternity.

Charging documents also stated that Schnall gave samples of Viagra to Patient One, to be distributed to a fraternity brother.

"From all that we can see, everything was done to bolster that sense of power over patients," said Blake Maresh of the Washington State Department of Health.

Schnall, 60, is a married father of two daughters who has practiced for nearly 30 years and was on the School Board in 1988-96.

No one answered at Schnall's gated Richmond Beach home Wednesday morning, but a man drove away from the home at about 9 a.m. without stopping to answer questions, KIRO 7 Eyewitness News reported.

The Seattle Post-Intelligencer reported Schnall denied the accusations and said Tuesday he would fight to regain his license.

The Post-Intelligencer reported that he blamed the case mainly on a patient he said he took in like a son, sometimes let stay at his home and helped pay for college expenses at a cost of nearly $42,000.

"No great deed goes unpunished," Schnall told the newspaper. "The problem was that he was wanting all the positive things that he could get from me but wasn't willing to take any discipline or consequences of his actions.

"When you deal with a large population of fragile, young people like that, there is always the risk of patients not being able to handle your advice and not being compliant with the suggestions you give them -- one of whom has made some unbelievable, unsubstantiated hearsay... allegations against me.

"And I am going to contest them to my last day."