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MARGARET HOLLISTER SIGMAN
NPI 1447461108
Allergy & Immunology in Midlothian, VA

Active since May 24, 2007PECOS EnrolledAccepts Medicare Assignment
5924 HARBOUR PARK DR, MIDLOTHIAN, VA 23112(804) 739-9005(804) 739-9006 Get Directions Write a Review

NPPES record last updated: March 10, 2017. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Margaret Hollister Sigman NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGARET HOLLISTER SIGMAN (NPI 1447461108) is an individual allergy & immunology provider in Midlothian, Virginia, licensed in Virginia (0101253799) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2003).

NPPES Registry Identity

NPI1447461108
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameMARGARET HOLLISTER SIGMAN
Location Address5924 HARBOUR PARK DRMidlothian, VA 23112-2163
Mailing Address5924 Harbour Park DrMidlothian, VA 23112-2163 · (804) 739-9005 · Fax (804) 739-9006
Phone(804) 739-9005
Fax(804) 739-9006
Sole ProprietorNo
Medical School CMSOtherGraduated 2003
Enumeration DateMay 24, 2007
Last NPPES UpdateMarch 10, 2017
✔ NPI 1447461108 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in VA · 0101253799
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Also ListedPediatricsTaxonomy 208000000X · License 200801988 (NC)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
5924 HARBOUR PARK DR, Midlothian, VA 23112
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Other Identifiers 5

Medicare PINVVB136AVA
Medicare PIN2073555ANC
Medicare PIN2073555NC
Medicaid5910944NC
Medicaid21474LA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Margaret Hollister Sigman is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7315098431
PECOS Enrollment IDI20131014000986
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
3,496 services60 patients
Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
2,208 services49 patients
Test for allergy using allergenic extract injected into skin 95024
An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.
435 services42 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
141 services77 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
122 services81 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
28 services28 patients

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BARRY K FEINSTEIN M.D.
Allergy & Immunology
5924 HARBOUR PARK DR
MIDLOTHIAN, VA 23112
Chesterfield County (804) 739-9005
ADVANCED ALLERGY AND ASTHMA OF VIRGINIA
Allergy & Immunology (Allergy)
5924 HARBOUR PARK DR
MIDLOTHIAN, VA 23112
Chesterfield County (804) 739-9005

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margaret Sigman's NPI number?

The NPI number for Margaret Sigman is 1447461108. It was assigned to this individual provider in the NPPES registry on May 24, 2007.

Where is Margaret Sigman located?

Margaret Sigman practices at 5924 Harbour Park Dr, Midlothian, VA 23112. The listed phone number is (804) 739-9005.

What is Margaret Sigman's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Margaret Sigman enrolled in Medicare?

Yes. Margaret Sigman is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Margaret Sigman was last updated on March 10, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.