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JEFFREY STEWART HALLETT M.D.
NPI 1275683823
Allergy & Immunology in Round Rock, TX

Active since January 12, 2007PECOS Enrolled
16000 PARK VALLEY DRIVE, SUITE #130, ROUND ROCK, TX 78681(512) 244-3422(512) 255-6829 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Jeffrey Stewart Hallett M.d. NPPES

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

JEFFREY STEWART HALLETT M.D. (NPI 1275683823) is an individual allergy & immunology provider in Round Rock, Texas, licensed in Texas (H1588) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275683823
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameJEFFREY STEWART HALLETTCredential: M.D.
Location Address16000 PARK VALLEY DRIVE, SUITE #130Round Rock, TX 78681-4009
Mailing Address16000 Park Valley Drive, Suite #130Round Rock, TX 78681-4009 · (512) 244-3422 · Fax (512) 255-6829
Phone(512) 244-3422
Fax(512) 255-6829
Sole ProprietorYes
Enumeration DateJanuary 12, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1275683823 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in TX · H1588
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.
16000 PARK VALLEY DRIVE, Round Rock, TX 78681
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Other Identifiers 3

Medicare UPINB23287
Medicare ID-Type Unspecified00DU91
Other00DU91TX · Blue Cross Blue Shield

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Imperial Insurance Companies, Inc., UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Jeffrey Stewart Hallett M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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 Jeffrey Hallett's NPI number?

The NPI number for Jeffrey Hallett is 1275683823. It was assigned to this individual provider in the NPPES registry on January 12, 2007.

Where is Jeffrey Hallett located?

Jeffrey Hallett practices at 16000 Park Valley Drive Suite #130, Round Rock, TX 78681. The listed phone number is (512) 244-3422.

What is Jeffrey Hallett's specialty?

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

Is Jeffrey Hallett enrolled in Medicare?

Yes. Jeffrey Hallett is registered in the Medicare PECOS enrollment system.

What insurance does Jeffrey Hallett accept?

Health plans from Imperial Insurance Companies, Inc. and UnitedHealthcare list Jeffrey Hallett as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Jeffrey Hallett was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.