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WALKER MEDICAL DIAGNOSTICS, LLC
NPI 1649350646
Internal Medicine in Jasper, AL

Active since October 16, 2006CLIA Certified · 5 labs
1450 JONES DAIRY ROAD, BLDG 600, JASPER, AL 35501(205) 295-4106(205) 295-4206 Get Directions Write a Review

NPPES record last updated: March 8, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 8, 2021, Jun 21, 2018 (2 updates tracked since 2018).

About Walker Medical Diagnostics, Llc NPPES

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

WALKER MEDICAL DIAGNOSTICS, LLC (NPI 1649350646) is a healthcare organization registered as an internal medicine in Jasper, Alabama and active in the NPI registry since October 2006. The organization holds 5 active CLIA laboratory certificates and lists Lee F Stephens, Practice Administrator, as its authorized official.

NPPES Registry Identity

NPI1649350646
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameWALKER MEDICAL DIAGNOSTICS, LLC
Location Address1450 JONES DAIRY ROAD, BLDG 600Jasper, AL 35501
Mailing Address1450 Jones Dairy Road, Bldg 600Jasper, AL 35501 · (205) 295-4100 · Fax (205) 295-4203
Phone(205) 295-4106
Fax(205) 295-4206
Organization SubpartNo
Authorized OfficialLee F StephensPractice Administrator · (205) 295-4106
Enumeration DateOctober 16, 2006
Last NPPES UpdateMarch 8, 20212 updates tracked since enumeration
NPPES CertifiedMarch 8, 2021
✔ NPI 1649350646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AL · 8390
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1450 JONES DAIRY ROAD, Jasper, AL 35501
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Walker Medical Diagnostics, Llc 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 Walker Medical Diagnostics, LLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 12 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Internal Medicine7
Nurse Practitioner4
Family Practice2

Clinicians, nearest first (13)

Jennifer Beasley, M.D.
Internal Medicine
NPI 1700291903
1450 JONES DAIRY RD STE 500
Jasper, AL 35501
(205) 295-4290
✔ PECOS✔ Accepts MedicareSame address
Amanda Barton
Nurse Practitioner
NPI 1710378260
1450 JONES DAIRY RD
Jasper, AL 35501
(205) 221-9037
✔ PECOS✔ Accepts Medicare0.1 mi
James Barton, MD
Internal Medicine
NPI 1275567182
1450 JONES DAIRY RD BUILDING 800
Jasper, AL 35501
(205) 221-6758
✔ PECOS✔ Accepts Medicare0.1 mi
Jeremy Blackwell, M.D.
Family Practice
NPI 1205053352
1450 JONES DAIRY ROAD BLDG 900
Jasper, AL 35501
(205) 387-8159
✔ PECOS✔ Accepts Medicare0.1 mi
Michael Brasfield, M.D.
Internal Medicine
NPI 1194734665
1450 JONES DAIRY RD. BLDG 400
Jasper, AL 35501
(205) 221-0562
✔ PECOS0.1 mi
Candice Hagler, M.D.
Family Practice
NPI 1437200037
1450 JONES DAIRY ROAD BLDG 900
Jasper, AL 35501
(205) 387-8159
✔ PECOS✔ Accepts Medicare0.1 mi
Claude Osula, M.D.
Internal Medicine
NPI 1235137688
1450 JONES DAIRY RD BUILDING 700
Jasper, AL 35501
(205) 295-4200
✔ PECOS✔ Accepts Medicare0.1 mi
Sonja Pettus, M.D.
Internal Medicine
NPI 1184769424
1450 JONES DAIRY RD BLDG 700
Jasper, AL 35501
(205) 295-4200
✔ PECOS✔ Accepts Medicare0.1 mi
Lisa King, CRNP
Nurse Practitioner
NPI 1245073501
2708 HIGHWAY 78 E
Jasper, AL 35501
(205) 387-2253
✔ PECOS✔ Accepts Medicare0.9 mi
Jerry Mosley, M.D.
Internal Medicine
NPI 1821106592
701 19TH ST E
Jasper, AL 35501
(205) 221-1516
✔ PECOS1.4 mi
Steve Johnson, M.D.
Internal Medicine
NPI 1144338880
701 19TH ST E
Jasper, AL 35501
(205) 221-1516
✔ PECOS✔ Accepts Medicare1.5 mi
Tiffany Oliver, CRNP
Nurse Practitioner
NPI 1255725917
2201 N AIRPORT RD
Jasper, AL 35504
(205) 221-9351
✔ PECOS✔ Accepts Medicare3.2 mi
Taylor Lightsey
Nurse Practitioner
NPI 1255058764
2018 BROOKWOOD MEDICAL CTR DR STE G100
Birmingham, AL 35209
(205) 527-0975
✔ PECOS✔ Accepts Medicare37 mi

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

CLIA Laboratory Certificates CMS CLIA 5

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 01D2031753

Walker Medical Diagnostics LLC · Jasper, AL
Active · expires Oct 25, 2027
CLIA Number01D2031753
Laboratory TypePhysician Office
Certificate Effective DateOctober 26, 2025
Certificate Expiration DateOctober 25, 2027
Laboratory DirectorJeremy T. Blackwell MD
Laboratory Phone(205) 295-4100
Laboratory LocationWalker Medical Diagnostics LLC1450 Jones Dairy Road Building 900, Jasper, AL 35501
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 01D2061681

Walker Medical Diagnostics LLC · Jasper, AL
Active · expires Jul 1, 2027
CLIA Number01D2061681
Laboratory TypePhysician Office
Certificate Effective DateJuly 2, 2025
Certificate Expiration DateJuly 1, 2027
Laboratory DirectorDr. Emily B. Williams
Laboratory Phone(205) 295-4100
Laboratory LocationWalker Medical Diagnostics LLC1450 Jones Dairy Road Building 500, Jasper, AL 35501
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 01D2243353

Walker Medical Diagnostics, LLC · Jasper, AL
Active · expires Nov 17, 2027
CLIA Number01D2243353
Laboratory TypePhysician Office
Certificate Effective DateNovember 18, 2025
Certificate Expiration DateNovember 17, 2027
Laboratory DirectorClaude U. Osula
Laboratory Phone(205) 295-4200
Laboratory LocationWalker Medical Diagnostics, LLC1450 Jones Dairy Road, Bldg 700, Jasper, AL 35501
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 01D1106300

Walker Medical Diagnostic LLC · Jasper, AL
Active · expires Oct 8, 2027
CLIA Number01D1106300
Laboratory TypePhysician Office
Certificate Effective DateOctober 9, 2025
Certificate Expiration DateOctober 8, 2027
Laboratory DirectorJames R. Barton MD
Laboratory Phone(205) 221-6751
Laboratory LocationWalker Medical Diagnostic LLC1450 Jones Dairy Road Bldg, Jasper, AL 35501
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 01D2318685

Walker Medical Diagnostics, LLC · Jasper, AL
Active · expires Feb 13, 2027
CLIA Number01D2318685
Laboratory TypePhysician Office
Certificate Effective DateFebruary 14, 2025
Certificate Expiration DateFebruary 13, 2027
Laboratory DirectorJennifer N. Beasley
Laboratory Phone(205) 221-1516
Laboratory LocationWalker Medical Diagnostics, LLC701 19th Street East, Jasper, AL 35501
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

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 Walker Medical Diagnostics, LLC's NPI number?

The NPI number for Walker Medical Diagnostics, LLC is 1649350646. It was assigned to this organization in the NPPES registry on October 16, 2006.

Where is Walker Medical Diagnostics, LLC located?

Walker Medical Diagnostics, LLC is located at 1450 Jones Dairy Road Bldg 600, Jasper, AL 35501. The listed phone number is (205) 295-4106.

What is Walker Medical Diagnostics, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Walker Medical Diagnostics, LLC enrolled in Medicare?

Yes. Walker Medical Diagnostics, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Walker Medical Diagnostics, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 13 clinicians in 3 Medicare specialties reassign their Medicare billing to Walker Medical Diagnostics, LLC. 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 (7), Nurse Practitioner (4) and Family Practice (2). Of these, 1 practice at this address and 12 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Walker Medical Diagnostics, LLC hold CLIA laboratory certificates?

Yes. 5 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Walker Medical Diagnostics, LLC was last updated on March 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.