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LONGHORN NEUROPHYSIOLOGY, P.A.
NPI 1811256928
Psychiatry & Neurology - Clinical Neurophysiology in Plano, TX

Active since May 09, 2012
5000 LEGACY DR STE 330, PLANO, TX 75024(484) 351-8459(484) 351-8810 Get Directions Write a Review

NPPES record last updated: December 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 8, 2025, May 12, 2025, Mar 1, 2023 and 2 more (5 updates tracked since 2020).

About Longhorn Neurophysiology, P.a. NPPES

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

LONGHORN NEUROPHYSIOLOGY, P.A. (NPI 1811256928) is a healthcare organization registered as a clinical neurophysiology in Plano, Texas and active in the NPI registry since May 2012. The organization lists Alan M. Rubin, Owner, as its authorized official.

NPPES Registry Identity

NPI1811256928
Entity TypeOrganization
Primary Taxonomy2084N0600X
Legal Business NameLONGHORN NEUROPHYSIOLOGY, P.A.
Location Address5000 LEGACY DR STE 330Plano, TX 75024-3391
Mailing Address1141 N Loop 1604 E Ste 105-484San Antonio, TX 78232-1339 · (281) 768-6730 · Fax (281) 768-6769
Phone(484) 351-8459
Fax(484) 351-8810
Organization SubpartNo
Authorized OfficialAlan M. RubinOwner · (281) 768-6747
Enumeration DateMay 9, 2012
Last NPPES UpdateDecember 8, 20255 updates tracked since enumeration
NPPES CertifiedDecember 8, 2025
✔ NPI 1811256928 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPsychiatry & Neurology · Clinical NeurophysiologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0600X
Definition
Clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS).
Also ListedElectrodiagnostic MedicineTaxonomy 204R00000X
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X
Also ListedSpecialist/Technologist, Other · ElectroneurodiagnosticTaxonomy 246ZE0600X
5000 LEGACY DR STE 330, Plano, TX 75024
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Longhorn Neurophysiology, P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

13

Medicare enrollment records show 13 clinicians reassign Medicare billing to Longhorn Neurophysiology, P.A., which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians by Medicare Specialty 2

Neurology12
Sleep Medicine1

Clinicians, nearest first (13)

Eli Neiman, D.O.
Neurology
NPI 1437363538
13572 BRAEMAR DR
Farmers Branch, TX 75234
(866) 516-2694
✔ PECOS✔ Accepts Medicare10 mi
Maria Dejesus, MD
Neurology
NPI 1336176387
500 THROCKMORTON STREET UNIT 3309
Fort Worth, TX 76102
(817) 908-8124
✔ PECOS✔ Accepts Medicare38 mi
Sonia Anand Nichols, MD
Neurology
NPI 1427205939
2915 W BITTERS RD STE 201
San Antonio, TX 78248
(484) 351-8459
✔ PECOS✔ Accepts Medicare260 mi
Arthur Pedregal, M.D.
Neurology
NPI 1780686162
4710 N HABANA AVE SUITE 303
Tampa, FL 33614
(813) 879-7940
✔ PECOS✔ Accepts Medicare921 mi
Thomas Hirschauer, M.D.
Neurology
NPI 1679004006
11009 LARKMEADE LN
Potomac, MD 20854
(484) 351-8459
✔ PECOS✔ Accepts Medicare1,170 mi
Francisco Vega-Bermudez, MD PHD
Neurology
NPI 1528005485
96 SANDY BAY DR
Poquoson, VA 23662
(888) 464-2466
✔ PECOS✔ Accepts Medicare1,187 mi
Sandra Block, M.D.
Sleep Medicine
NPI 1205806627
325 ESSJAY RD SUITE 210
Williamsville, NY 14221
(716) 630-1122
✔ PECOS✔ Accepts Medicare1,195 mi
Irene Greenhouse, M.D.
Neurology
NPI 1588811194
2370 YORK RD STE A4
Jamison, PA 18929
(215) 792-7227
✔ PECOS✔ Accepts Medicare1,300 mi
Stephen Fried, MD
Neurology
NPI 1982843462
33 WOOD AVE S STE 600
Iselin, NJ 08830
(484) 351-8459
✔ PECOS✔ Accepts Medicare1,344 mi
Lev Grinman, M.D.
Neurology
NPI 1457511743
37 WEST CENTURY RD, SUITE 107
Paramus, NJ 07652
(201) 967-1111
✔ PECOS✔ Accepts Medicare1,364 mi
Mohammad Padela, MD
Neurology
NPI 1700855772
718 TEANECK RD
Teaneck, NJ 07666
(201) 869-6868
✔ PECOS✔ Accepts Medicare1,366 mi
Amit Shelat, D.O.
Neurology
NPI 1861660987
21 HOLIDAY POND RD
Jericho, NY 11753
(516) 822-3917
✔ PECOS✔ Accepts Medicare1,388 mi
Tahsin Khan, M.D.
Neurology
NPI 1992156293
1135-116 AVENUE NE SUITE 500
Bellevue, WA 98004
(518) 867-7768
✔ PECOS✔ Accepts Medicare1,662 mi

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

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 Longhorn Neurophysiology, P.A.'s NPI number?

The NPI number for Longhorn Neurophysiology, P.A. is 1811256928. It was assigned to this organization in the NPPES registry on May 9, 2012.

Where is Longhorn Neurophysiology, P.A. located?

Longhorn Neurophysiology, P.A. is located at 5000 Legacy Dr Ste 330, Plano, TX 75024. The listed phone number is (484) 351-8459.

What is Longhorn Neurophysiology, P.A.'s specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Clinical Neurophysiology, with taxonomy code 2084N0600X.

Is Longhorn Neurophysiology, P.A. enrolled in Medicare?

Yes. Longhorn Neurophysiology, P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Longhorn Neurophysiology, P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 13 clinicians in 2 Medicare specialties reassign their Medicare billing to Longhorn Neurophysiology, P.A.. A 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 the clinician's services. The largest specialties are Neurology (12) and Sleep Medicine (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Longhorn Neurophysiology, P.A. was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.