Calculate number of (distinct/unique) times a person has entered a building per day

Question

Trying to count distinct number of times a person entered a facility on each day.

What I've achieved: Distinct entries by the person for the four columns.

df = pd.read_excel("Sample.xlsx)
df1 = df.groupby(['Date', 'Facility'], as_index=False)['By_Name'].nunique()
df2 = df.groupby(['Date', 'Facility'], as_index=False)['Preceptor'].nunique()
df3 = df.groupby(['Date', 'Facility'], as_index=False)['Preceptee'].nunique()
df4 = df.groupby(['Date', 'Facility'], as_index=False)['Circulator'].nunique()

Where I'm struggling: Checking if that person already entered the facility

Sample Input (Sample.xlsx) of a given day [actual data is for every day of the month]:

Date	Facility	Begin Time	By Name	Preceptor	Preceptee	Circulator
2021-09-10	Betsy House	14:50	DS
2021-09-10	Betsy House	15:30	DS
2021-09-10	Betsy House	18:20	DS
2021-09-10	Brian South	13:10	DS
2021-09-10	Camden Place	18:10	NP
2021-09-10	Cape Fear	10:01	DI			KL
2021-09-10	Cape Fear	10:31	DI			KL
2021-09-10	Cape Fear	10:36	DI			KL
2021-09-10	Cape Fear	11:58	DI			KL
2021-09-10	Cape Fear	12:11	DI			KL
2021-09-10	Cape Fear	12:56	DI			KL
2021-09-10	Cape Fear	13:35	DI			KL
2021-09-10	Cape Fear	17:30	DI			KL
2021-09-10	Cape Fear	09:50	KL			DI
2021-09-10	Cape Fear	10:47	KL			DI
2021-09-10	Cape Fear	11:14	KL			DI
2021-09-10	Cape Fear	16:18	KL			DI
2021-09-10	Cape Fear	16:34	KL			DI
2021-09-10	Cape Fear	18:09	KL			DI
2021-09-10	Cape Fear	18:20	KL			DI
2021-09-10	Cape Fear	09:30	LOA			WH
2021-09-10	Cape Fear	09:48	SR			JR
2021-09-10	Cape Fear	11:03	SR			JR
2021-09-10	Cape Fear	12:10	SR			JR
2021-09-10	Cape Fear	13:10	SR			JR
2021-09-10	Cape Fear	13:34	SR			JR
2021-09-10	Cape Fear	13:55	SR			JR
2021-09-10	Cape Fear	16:19	SR			JR
2021-09-10	Cape Fear	16:19	SR			JR
2021-09-10	Cape Fear	16:43	SR			JR
2021-09-10	Cape Fear	16:43	SR			JR
2021-09-10	Cape Fear	17:09	SR			JR
2021-09-10	Cape Fear	11:52	WH
2021-09-10	Capital Center	11:45	DS
2021-09-10	CHH	17:09	AA
2021-09-10	Chatham	15:47	RB
2021-09-10	Chatham	17:25	RB
2021-09-10	CIH	09:48	MP
2021-09-10	CRHS	16:15		WH	LOA
2021-09-10	CRHS	16:15		WH	LOA
2021-09-10	HRMC	13:29	MP
2021-09-10	HRMC	14:01	MP
2021-09-10	HRMC	15:35	MP
2021-09-10	IMH	09:50	LD
2021-09-10	IMH	11:15	LD
2021-09-10	IMH	18:30	LD
2021-09-10	IMH	19:40	LD
2021-09-10	MUSC	11:20	CT
2021-09-10	MUSC	11:50	CT
2021-09-10	MUSC	12:50	CT
2021-09-10	MUSC	13:43	CT
2021-09-10	MUSC	14:55	CT
2021-09-10	MUSC	15:40	CT
2021-09-10	MUSC	16:09	CT
2021-09-10	MUSC	16:20	CT
2021-09-10	MUSC	16:38	CT
2021-09-10	NCSH	10:20	NP
2021-09-10	NCN	17:40	EK
2021-09-10	Oak Forest	10:50	RB
2021-09-10	Oak Forest	11:50	RB
2021-09-10	PRC	13:05	LD
2021-09-10	PMH	15:15	NP
2021-09-10	SSHD	11:50	NP
2021-09-10	SSHD	12:00	NP
2021-09-10	SSHD	12:20	NP
2021-09-10	SSHG	13:44	RB
2021-09-10	SCC	11:36	MP
2021-09-10	SCC	17:55	MP
2021-09-10	SHD	11:00	LB
2021-09-10	SHD	13:10	LB
2021-09-10	SHD	15:00	LB
2021-09-10	SHD	16:10	LB
2021-09-10	SHM	09:45	LJ
2021-09-10	SHM	11:30	LJ
2021-09-10	SHM	11:50	LJ
2021-09-10	SHM	12:11	LJ
2021-09-10	SHM	12:25	LJ
2021-09-10	SHM	16:50	LJ
2021-09-10	VEH	11:40	AA

Required Output (By Facility)

Date	Facility	Entries	Begin Time	By Name	Preceptor	Preceptee	Circulator
2021-09-10	Betsy House	1	14:50	DS
2021-09-10	Brian South	1	13:10	DS
2021-09-10	Camden Place	1	18:10	NP
2021-09-10	Capital Center	1	11:45	DS
2021-09-10	CHH	1	17:09	AA
2021-09-10	Chatham	1	15:47	RB
2021-09-10	CIH	1	09:48	MP
2021-09-10	CRHS	2	16:15		WH	LOA
2021-09-10	HRMC	1	13:29	MP
2021-09-10	IMH	2	09:50	LD
2021-09-10	IMH		18:30	LD
2021-09-10	MUSC	1	11:20	CT
2021-09-10	NCSH	1	10:20	NP
2021-09-10	NCN	1	17:40	EK
2021-09-10	Oak Forest	1	10:50	RB
2021-09-10	PRC	1	13:05	LD
2021-09-10	PMH	1	15:15	NP
2021-09-10	SSHD	1	11:50	NP
2021-09-10	SSHG	1	13:44	RB
2021-09-10	SCC	2	11:36	MP
2021-09-10	SCC		17:55	MP
2021-09-10	SHD	1	11:00	LB
2021-09-10	SHM	1	09:45	LJ
2021-09-10	VEH	1	11:40	AA
2021-09-10	Cape Fear	6	09:30	LOA			WH
2021-09-10	Cape Fear		09:48	SR			JR
2021-09-10	Cape Fear		09:50	KL			DI
2021-09-10	Cape Fear		10:01	DI			KL

Any and all help will be appreciated. TIA