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SHAZ SIDDIQI M.D.
NPI 1093750796
Allergy & Immunology in Lansdowne, VA

Active since June 17, 2006PECOS EnrolledAccepts Medicare Assignment
44160 SCHOLAR PLZ, SUITE 390, LANSDOWNE, VA 20176(703) 938-3900(703) 726-2579 Get Directions Write a Review

NPPES record last updated: November 17, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Shaz Siddiqi M.d. NPPES

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

SHAZ SIDDIQI M.D. (NPI 1093750796) is an individual allergy & immunology provider in Lansdowne, Virginia, licensed in Virginia (0101250699) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1997).

NPPES Registry Identity

NPI1093750796
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameSHAZ SIDDIQICredential: M.D.
Location Address44160 SCHOLAR PLZ, SUITE 390Lansdowne, VA 20176-3459
Mailing Address44160 Scholar Plz, Suite 390Lansdowne, VA 20176-3459 · (703) 938-3900 · Fax (703) 726-2579
Phone(703) 938-3900
Fax(703) 726-2579
Sole ProprietorNo
Medical School CMSOtherGraduated 1997
Enumeration DateJune 17, 2006
Last NPPES UpdateNovember 17, 2015
✔ NPI 1093750796 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
Licenses✔ Licensed in VA · 0101250699✔ Licensed in MD · D0062974
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.
44160 SCHOLAR PLZ, Lansdowne, VA 20176
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Other Identifiers 2

Other020282ZRGMDC · Medicare Ptan
Medicare UPINH42724MD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Shaz Siddiqi M.d. 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 ID1951335108
PECOS Enrollment IDI20051006000600, I20210824000013
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.

Medicare Billing Reassignment

Medicare enrollment records show Shaz Siddiqi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Asthma & Allergy Center LLC
15 mi
Allergy & Immunology
14995 SHADY GROVE RD STE 100
Rockville, MD 20850
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • 25 clinicians in this Medicare group
NPI 1912089335 (410) 772-8000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

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.
1,735 services28 patients
Professional service for multiple injections of allergen 95117
The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.
302 services55 patients
Professional service for single injection of allergen 95115
A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.
86 services17 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.
67 services41 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.
43 services32 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
34 services34 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. GULBU UZEL MD
Allergy & Immunology
44160 SCHOLAR PLZ, SUITE 390
LANSDOWNE, VA 20176
Loudoun County (703) 938-3900
MRS. STEPHANIE CARROLL BERNARD PA-C, RD
Physician Assistant
44160 SCHOLAR PLZ
LEESBURG, VA 20176
Loudoun County (540) 542-6546

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 Shaz Siddiqi's NPI number?

The NPI number for Shaz Siddiqi is 1093750796. It was assigned to this individual provider in the NPPES registry on June 17, 2006.

Where is Shaz Siddiqi located?

Shaz Siddiqi practices at 44160 Scholar Plz Suite 390, Lansdowne, VA 20176. The listed phone number is (703) 938-3900.

What is Shaz Siddiqi's specialty?

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

Is Shaz Siddiqi enrolled in Medicare?

Yes. Shaz Siddiqi 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.

Which organization bills Medicare for Shaz Siddiqi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shaz Siddiqi reassigns Medicare benefits to Asthma & Allergy Center LLC (Rockville, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Shaz Siddiqi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Shaz Siddiqi was last updated on November 17, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.