THOMAS G. BLOCK III DO
NPI 1265096390
Radiology - Diagnostic Radiology in West Monroe, LA

Active since April 24, 2019PECOS EnrolledAccepts Medicare Assignment
503 MCMILLAN RD, WEST MONROE, LA 71291(318) 329-4200 Get Directions Write a Review

NPPES record last updated: June 19, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 19, 2024, Apr 24, 2019 (2 updates tracked since 2019).

About Thomas G. Block Iii Do NPPES

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

THOMAS G. BLOCK III DO (NPI 1265096390) is an individual diagnostic radiology provider in West Monroe, Louisiana, licensed in Louisiana (337406) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Christus St Frances Cabrini Hospital, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1265096390
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameTHOMAS G. BLOCK IIICredential: DO
Location Address503 MCMILLAN RDWest Monroe, LA 71291-5327
Mailing Address503 Mcmillan RdWest Monroe, LA 71291-5327
Sole ProprietorYes
Medical School CMSOtherGraduated 2019
Enumeration DateApril 24, 2019
Last NPPES UpdateJune 19, 20242 updates tracked since enumeration
NPPES CertifiedJune 11, 2024
✔ NPI 1265096390 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in LA · 337406
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
503 MCMILLAN RD, West Monroe, LA 71291

Accepted Insurance

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

Thomas G. Block Iii Do 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 ID9537490883
PECOS Enrollment IDI20240521001258
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 Reassignments

7

Medicare enrollment records show Thomas Block reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Diagnostic Radiology
503 MCMILLAN RD
West Monroe, LA 71291
  • Reassigned Medicare billing, Louisiana enrollment
  • 8 clinicians in this Medicare group
Rural Health
1809 NORTHPOINTE LN STE 102
Ruston, LA 71270
  • Reassigned Medicare billing, Louisiana enrollment
  • 36 clinicians in this Medicare group
Radiology
1460 E. BERT KOUNS INDUSTRIAL LOOP, SUITE 708
Shreveport, LA 71105
  • Reassigned Medicare billing, Louisiana enrollment
  • 26 clinicians in this Medicare group
Gastroenterology
3217 MABEL ST
Shreveport, LA 71103
  • Reassigned Medicare billing, Louisiana enrollment
  • Medicare enrollment name: Gastrointestinal Specialists Amc
  • 64 clinicians in this Medicare group
Diagnostic Radiology
5000 HENNESSY BLVD
Baton Rouge, LA 70808
  • Reassigned Medicare billing, Louisiana enrollment
  • 54 clinicians in this Medicare group
Clinic/Center
8044 SUMMA AVE
Baton Rouge, LA 70809
  • Reassigned Medicare billing, Louisiana enrollment
  • 19 clinicians in this Medicare group
Diagnostic Radiology
4204 TEUTON ST
Metairie, LA 70006
  • Reassigned Medicare billing, Louisiana enrollment
  • 20 clinicians in this Medicare group

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 45

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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
809 services530 patients
Screening 3d breast mammography 77063
Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.
214 services214 patients
Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
213 services213 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
181 services172 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
179 services177 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
84 services82 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus St Frances Cabrini Hospital

Acute Care Hospitals · Alexandria, LA
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190019
Location3330 Masonic DriveAlexandria, LA 71301 · Rapides County
Emergency services Birthing friendly

Northern Louisiana Medical Center

Acute Care Hospitals · Ruston, LA
4/5 CMS rating
OwnershipProprietary
CMS Certification Number190086
Location401 East Vaughn AvenueRuston, LA 71270 · Lincoln County
Emergency services Birthing friendly

Minden Medical Center

Acute Care Hospitals · Minden, LA
3/5 CMS rating
OwnershipProprietary
CMS Certification Number190144
LocationNo 1 Medical PlazaMinden, LA 71055 · Webster County
Emergency services Birthing friendly

Glenwood Regional Medical Center

Acute Care Hospitals · West Monroe, LA
1/5 CMS rating
OwnershipProprietary
CMS Certification Number190160
Location503 Mcmillan RoadWest Monroe, LA 71291 · Ouachita County
Emergency services

Citizens Medical Center

Acute Care Hospitals · Columbia, LA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number190184
Location7939 U S Hwy 165 SouthColumbia, LA 71418 · Caldwell County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 71291 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$83.60 typical visit price
range $53.43 – $164.73
Typical copayment $20.90 (range $13.35 – $41.18)
Most-billed visit code 99203
Established Patient
$67.06 typical visit price
range $16.64 – $133.62
Typical copayment $16.76 (range $4.16 – $33.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pharmacist
503 MCMILLAN RD
WEST MONROE, LA 71291
Rehabilitation Unit
503 MCMILLAN RD
WEST MONROE, LA 71291
Anesthesiology
503 MCMILLAN RD
WEST MONROE, LA 71291
Dietitian, Registered
503 MCMILLAN RD
WEST MONROE, LA 71291
Nurse Anesthetist, Certified Registered
503 MCMILLAN RD
WEST MONROE, LA 71291
Hospitalist
503 MCMILLAN RD
WEST MONROE, LA 71291
Family Medicine
503 MCMILLAN RD
WEST MONROE, LA 71291
Hospitalist
503 MCMILLAN RD
WEST MONROE, LA 71291

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 Thomas Block's NPI number?

The NPI number for Thomas Block is 1265096390. It was assigned to this individual provider in the NPPES registry on April 24, 2019.

Where is Thomas Block located?

Thomas Block practices at 503 Mcmillan Rd, West Monroe, LA 71291. The listed phone number is (318) 329-4200.

What is Thomas Block's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Thomas Block enrolled in Medicare?

Yes. Thomas Block 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 organizations bill Medicare for Thomas Block's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Block reassigns Medicare benefits to 7 organizations: Radiology Consultants (West Monroe, LA), Green Clinic LLC (Ruston, LA), Northwest Imaging, LLC (Shreveport, LA), Gastrointestinal Specialists, A.M.C. (Shreveport, LA), Radiology Associates LLC (Baton Rouge, LA) and 2 more organizations, listed in the Medicare section above. Each 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 Thomas Block's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Block accept?

Health plans from HMO Louisiana list Thomas Block 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.

Is Thomas Block affiliated with any hospitals?

According to CMS data, Thomas Block is affiliated with Christus St Frances Cabrini Hospital, Northern Louisiana Medical Center, Minden Medical Center, Glenwood Regional Medical Center and Citizens Medical Center.

When was this NPI record last updated?

The NPPES record for Thomas Block was last updated on June 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.