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LONESTAR PAT ASSOCIATES PA
NPI 1811594203
Hospitalist in Round Rock, TX

Active since October 08, 2020
2400 ROUND ROCK AVE, ROUND ROCK, TX 78681(512) 341-1000 Get Directions Write a Review

NPPES record last updated: October 8, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Lonestar Pat Associates Pa NPPES

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

LONESTAR PAT ASSOCIATES PA (NPI 1811594203) is a healthcare organization registered as a hospitalist in Round Rock, Texas and active in the NPI registry since October 2020. The organization lists Lance Dean Williams, President, as its authorized official.

NPPES Registry Identity

NPI1811594203
Entity TypeOrganization
Primary Taxonomy208M00000X
Legal Business NameLONESTAR PAT ASSOCIATES PA
Location Address2400 ROUND ROCK AVERound Rock, TX 78681-4004
Mailing Address1643 Nw 136th Ave Ste 100Sunrise, FL 33323-2857 · (800) 424-3672 · Fax (954) 377-3042
Phone(512) 341-1000
Organization SubpartNo
Authorized OfficialLance Dean WilliamsPresident · (800) 424-3672
Enumeration DateOctober 8, 2020
NPPES CertifiedOctober 8, 2020
✔ NPI 1811594203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedFamily MedicineTaxonomy 207Q00000X
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedPhysician AssistantTaxonomy 363A00000X
Also ListedNurse PractitionerTaxonomy 363L00000X
2400 ROUND ROCK AVE, Round Rock, TX 78681
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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)

Lonestar Pat Associates Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

204

Medicare enrollment records show 204 clinicians reassign Medicare billing to Lonestar Pat Associates PA, which bills Medicare for the services they deliver. Of these, 7 practice at this address and 31 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 8

Internal Medicine154
Hospitalist23
Family Practice22
Cardiovascular Disease (Cardiology)1
Hospice/Palliative Care1
Infectious Disease1
Osteopathic Manipulative Medicine1
Pediatric Medicine1

Nearest to this location (20)

See all 204
Andrea Adams-Krueger, M.D.
Internal Medicine
NPI 1902037021
2400 ROUND ROCK AVE
Round Rock, TX 78681
(512) 341-1000
✔ PECOS✔ Accepts MedicareSame address
Mauricio Pinto, M.D.
Family Practice
NPI 1881860724
2400 ROUND ROCK AVE ST. DAVID'S ROUND ROCK MEDICAL CENTER
Round Rock, TX 78681
(956) 607-0896
✔ PECOS✔ Accepts MedicareSame address
Niveditha Urs, MD
Internal Medicine
NPI 1346232121
2400 ROUND ROCK AVE # 390
Round Rock, TX 78681
(512) 341-1258
✔ PECOS✔ Accepts MedicareSame address
Hatim Chhatriwala, M.D.
Internal Medicine
NPI 1649427618
2400 ROUND ROCK AVE HOSPITALIST OFFICE
Round Rock, TX 78681
(512) 341-5632
✔ PECOS✔ Accepts MedicareSame address
John Salas
Internal Medicine
NPI 1801812649
2400 ROUND ROCK AVE
Round Rock, TX 78681
(512) 341-1258
✔ PECOS✔ Accepts MedicareSame address
Karim Kerdahi
Internal Medicine
NPI 1275275372
2400 ROUND ROCK AVE
Round Rock, TX 78681
(512) 341-1000
✔ PECOS✔ Accepts MedicareSame address
Punjan Patel, MD
Internal Medicine
NPI 1265019954
2400 ROUND ROCK AVE
Round Rock, TX 78681
(512) 341-6156
✔ PECOS✔ Accepts MedicareSame address
Shobhit Keswani
Infectious Disease
NPI 1427519073
16238 RANCH ROAD 620 N STE F-393
Austin, TX 78717
(281) 885-9891
✔ PECOS✔ Accepts Medicare1.5 mi
Kindle Burns, MD
Family Practice
NPI 1891439212
425 UNIVERSITY BLVD STE 500
Round Rock, TX 78665
(512) 509-3404
✔ PECOS✔ Accepts Medicare3.9 mi
Muhammad Nabil, M.D
Cardiovascular Disease (Cardiology)
NPI 1780048181
300 UNIVERSITY BLVD
Round Rock, TX 78665
(512) 509-0100
✔ PECOS✔ Accepts Medicare3.9 mi
Kendall Britt, M.D.
Internal Medicine
NPI 1932138567
302 UNIVERSITY BLVD
Round Rock, TX 78665
(512) 509-0100
✔ PECOS4.0 mi
Ekene Okolo
Internal Medicine
NPI 1528372729
300 UNIVERSITY BLVD
Round Rock, TX 78665
(512) 509-0100
✔ PECOS✔ Accepts Medicare4.0 mi
Satish Boddhula, MD
Internal Medicine
NPI 1376927558
300 UNIVERSITY BLVD
Round Rock, TX 78665
(254) 724-2111
✔ PECOS✔ Accepts Medicare4.0 mi
Shadi Khir, MD
Internal Medicine
NPI 1902160534
300 UNIVERSITY BLVD
Round Rock, TX 78665
(512) 509-0100
✔ PECOS✔ Accepts Medicare4.0 mi
Vinod Yalamanchili, M.D
Internal Medicine
NPI 1164775011
300 UNIVERSITY BLVD
Round Rock, TX 78665
(512) 509-0100
✔ PECOS✔ Accepts Medicare4.0 mi
Saurin Patel, MD
Internal Medicine
NPI 1184944381
201 SETON PKWY
Round Rock, TX 78665
(512) 324-4083
✔ PECOS✔ Accepts Medicare5.4 mi
Mahmuda Begum, MD
Hospitalist
NPI 1598956773
1401 MEDICAL PKWY, BLDG B #220
Cedar Park, TX 78613
(512) 260-1581
✔ PECOS✔ Accepts Medicare6.1 mi
Hanzy Bustamante, MD
Internal Medicine
NPI 1508828641
1401 MEDICAL PKWY BLDG B., #220
Cedar Park, TX 78613
(512) 324-4083
✔ PECOS✔ Accepts Medicare6.1 mi
Raghav Chintalapally, MD
Family Practice
NPI 1619123775
12221 N MOPAC EXPY
Austin, TX 78758
(512) 901-4009
✔ PECOS✔ Accepts Medicare6.8 mi
Evgenia Slavcheva, M.D.
Pediatric Medicine
NPI 1477508448
12221 N MOPAC EXPY
Austin, TX 78758
(512) 901-4009
✔ PECOS6.8 mi
See all 204 clinicians

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 Lonestar Pat Associates PA's NPI number?

The NPI number for Lonestar Pat Associates PA is 1811594203. It was assigned to this organization in the NPPES registry on October 8, 2020.

Where is Lonestar Pat Associates PA located?

Lonestar Pat Associates PA is located at 2400 Round Rock Ave, Round Rock, TX 78681. The listed phone number is (512) 341-1000.

What is Lonestar Pat Associates PA's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Lonestar Pat Associates PA enrolled in Medicare?

Yes. Lonestar Pat Associates PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Lonestar Pat Associates PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 204 clinicians in 8 Medicare specialties reassign their Medicare billing to Lonestar Pat Associates PA. 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 Internal Medicine (154), Hospitalist (23) and Family Practice (22). Of these, 7 practice at this address and 31 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Lonestar Pat Associates PA was last updated on October 8, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.