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All Patient First Centers remain open 8 am to 10 pm for Walk-in Care of Illness and Injury. New services recently added include:
COVID-19 Virus Testing (Current Infection) at Select Centers by Appointment.
COVID-19 Antibody Testing at all Centers – just walk in.
Telehealth.
Central Park
August
View Center Schedules for all Physicians and Physician Assistants, full- and part-time.
Alexandria
Annapolis
Beltsville
Bowie
Central Park
Chantilly
Clinton
Fairfax
Falls Church
Gainesville
Garrisonville
Germantown
Lake Ridge
Landover Hills
Leesburg
Manassas
Rockville
Silver Spring
Sterling
Waldorf
Select another center
Alexandria
Annapolis
Beltsville
Bowie
Central Park
Chantilly
Clinton
Fairfax
Falls Church
Gainesville
Garrisonville
Germantown
Lake Ridge
Landover Hills
Leesburg
Manassas
Rockville
Silver Spring
Sterling
Waldorf
Schedule of all Physicians and Physician Assistants, full- and part-time
Schedule of Full-Time Physicians and Physician Assistants - with bios
DOT
Show DOT certified
examiners
SUN
MON
TUE
WED
THU
FRI
SAT
2
SUN
2
DOT
Rod Johnson, M.D.
8am - 10pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
3
MON
3
DOT
William Carr, PA‑C
8am - 10pm
DOT
Kristin Griffey, PA‑C
8am - 10pm
DOT
Rod Johnson, M.D.
8am - 10pm
4
TUE
4
DOT
Erika Boka, PA‑C
8am - 3pm
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Maryam Sindi, FNP
8am - 10pm
5
WED
5
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Ekram Guirguis, M.D.
8am - 10pm
DOT
Erin Lotharius, PA‑C
10am - 8pm
6
THU
6
DOT
Robert Colligan, M.D.
8am - 10pm
DOT
LaTaya Whitaker, FNP
8am - 10pm
DOT
Ekram Guirguis, M.D.
10am - 8pm
7
FRI
7
DOT
Ekram Guirguis, M.D.
8am - 3pm
DOT
Bridget Baidoo, PA‑C
8am - 10pm
DOT
William Carr, PA‑C
8am - 10pm
DOT
Robert Colligan, M.D.
3pm - 10pm
8
SAT
8
DOT
Ekram Guirguis, M.D.
8am - 3pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
DOT
Erika Boka, PA‑C
3pm - 10pm
9
SUN
9
DOT
Erika Boka, PA‑C
8am - 5pm
DOT
Tokzhan Clay, M.D.
8am - 10pm
DOT
Bridget Baidoo, PA‑C
3pm - 10pm
10
MON
10
DOT
Ekram Guirguis, M.D.
8am - 3pm
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
DOT
Erika Boka, PA‑C
3pm - 10pm
11
TUE
11
DOT
Erika Boka, PA‑C
8am - 3pm
DOT
Maryam Sindi, FNP
8am - 3pm
DOT
Ekram Guirguis, M.D.
8am - 10pm
DOT
Robert Colligan, M.D.
3pm - 10pm
12
WED
12
DOT
Ekram Guirguis, M.D.
8am - 3pm
DOT
William Carr, PA‑C
8am - 10pm
DOT
Rod Johnson, M.D.
8am - 10pm
13
THU
13
DOT
Mariam Ali, PA‑C
8am - 3pm
DOT
Rod Johnson, M.D.
8am - 3pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
DOT
Erika Boka, PA‑C
3pm - 10pm
14
FRI
14
DOT
William Carr, PA‑C
8am - 10pm
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Rod Johnson, M.D.
8am - 10pm
15
SAT
15
DOT
William Carr, PA‑C
8am - 3pm
DOT
Laura Erwin, PA‑C
8am - 3pm
DOT
Tokzhan Clay, M.D.
8am - 10pm
DOT
Ekram Guirguis, M.D.
3pm - 10pm
16
SUN
16
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Ekram Guirguis, M.D.
8am - 10pm
DOT
Laura Erwin, PA‑C
10am - 6pm
17
MON
17
DOT
William Carr, PA‑C
8am - 10pm
DOT
Rod Johnson, M.D.
8am - 10pm
DOT
Ekram Guirguis, M.D.
11am - 6pm
DOT
Tara Villano, PA‑C
3pm - 10pm
18
TUE
18
DOT
Robert Colligan, M.D.
8am - 3pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
DOT
Amanda Heger, FNP
10am - 8pm
DOT
Ekram Guirguis, M.D.
3pm - 10pm
19
WED
19
DOT
Bridget Baidoo, PA‑C
8am - 10pm
DOT
Rod Johnson, M.D.
8am - 10pm
DOT
Ekram Guirguis, M.D.
10am - 8pm
20
THU
20
DOT
Ekram Guirguis, M.D.
8am - 3pm
DOT
Kristin Griffey, PA‑C
8am - 10pm
DOT
Bridget Baidoo, PA‑C
12pm - 8pm
DOT
Robert Colligan, M.D.
3pm - 10pm
21
FRI
21
DOT
Bridget Baidoo, PA‑C
8am - 10pm
DOT
Robert Colligan, M.D.
8am - 10pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
22
SAT
22
DOT
Erin Lotharius, PA‑C
8am - 3pm
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Rod Johnson, M.D.
8am - 10pm
23
SUN
23
DOT
Robert Colligan, M.D.
8am - 10pm
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Laura Erwin, PA‑C
11am - 6pm
24
MON
24
DOT
Kristin Griffey, PA‑C
8am - 10pm
DOT
Rod Johnson, M.D.
8am - 10pm
DOT
William Carr, PA‑C
10am - 8pm
25
TUE
25
DOT
Ekram Guirguis, M.D.
8am - 3pm
DOT
William Carr, PA‑C
8am - 10pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
DOT
Rod Johnson, M.D.
3pm - 10pm
26
WED
26
DOT
Kristin Griffey, PA‑C
8am - 10pm
DOT
Ekram Guirguis, M.D.
8am - 10pm
DOT
Erika Boka, PA‑C
10am - 5pm
27
THU
27
DOT
Erika Boka, PA‑C
8am - 3pm
DOT
Rod Johnson, M.D.
8am - 3pm
DOT
Mary Pat Gronauer, FNP
8am - 10pm
DOT
Bridget Baidoo, PA‑C
3pm - 10pm
DOT
Ekram Guirguis, M.D.
3pm - 10pm
28
FRI
28
DOT
Rod Johnson, M.D.
8am - 10pm
DOT
Erin Lotharius, PA‑C
8am - 10pm
DOT
Ekram Guirguis, M.D.
10am - 5pm
29
SAT
29
DOT
Tokzhan Clay, M.D.
8am - 3pm
DOT
William Carr, PA‑C
8am - 10pm
DOT
Erika Boka, PA‑C
10am - 6pm
DOT
Ekram Guirguis, M.D.
3pm - 10pm
30
SUN
30
DOT
Robert Colligan, M.D.
8am - 3pm
DOT
Kristin Griffey, PA‑C
8am - 3pm
DOT
Erika Boka, PA‑C
3pm - 10pm
DOT
Rod Johnson, M.D.
3pm - 10pm
31
MON
31
DOT
Rod Johnson, M.D.
8am - 3pm
DOT
William Carr, PA‑C
8am - 10pm
DOT
Kristin Griffey, PA‑C
8am - 10pm
DOT
Ekram Guirguis, M.D.
3pm - 10pm
1
TUE
1 ‑ SEP
2
WED
2
3
THU
3
4
FRI
4
5
SAT
5
Last minute schedule revisions, due to illness or other reasons, are possible. Please feel free to call the center within 3 days of your planned visit to confirm that the Physician or Physician Assistant you would like to see is still scheduled.
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Central Pennsylvania Area
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Richmond and Surrounding Areas
Hampton Roads/Tidewater Area
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