Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mark S Seigel, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1366540080

Mark S Seigel, MD is an Obstetrics/Gynecology in Germantown, Maryland. Graduated from Perelman School of Med at the University of Pennsylvania in 1977, 49 years ago. Practices with Capital Womens Care LLC, a 287-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
49
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
MD
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

19785 Crystal Rock Dr Ste 208
Germantown, MD 20874-4700
Phone: (301) 528-8444
Fax: (240) 331-9176
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence D0026246 (MD)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence D26246 (MD)

Record details

NPI number1366540080
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESSeptember 24, 2021
Certification dateSeptember 24, 2021
Mailing address19785 Crystal Rock Dr, Suite 208, Germantown, MD 20874-4700

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 1977 (49 years in practice)
Group practice Capital Womens Care Llc — 287 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations10 on file with Medicare

Other providers in Germantown