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

Margaret Hollister Sigman

Individual provider Pediatrics Physician · NPI 1447461108

Margaret Hollister Sigman is an Allergy/Immunology in Midlothian, Virginia. Qualified in 2003, 23 years ago. Practices with Advanced Allergy and Asthma of Virginia, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in North Carolina and Virginia.

Years since qualifying
23
Licensed in
NC, VA
In the registry since
2007
Specialties on file
3
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Practice location Address checks out

5924 Harbour Park Dr
Midlothian, VA 23112-2163
Phone: (804) 739-9005
Fax: (804) 739-9006
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 0101253799 (VA)
Pediatrics Physician Taxonomy 208000000X · Licence 200801988 (NC)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1447461108
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 24, 2007
Last updated in NPPESMarch 10, 2017

Medicare enrollment

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

Medicare specialtyALLERGY/IMMUNOLOGY
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Advanced Allergy And Asthma Of Virginia — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Midlothian