Thomas S Messer Jr, MD - Medicare Internal Medicine in Hattiesburg, MS

Thomas S Messer Jr, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Hattiesburg, Mississippi. His current practice location is 415 S 28th Ave, Hattiesburg, Mississippi. You can reach out to his office (for appointments etc.) via phone at (601) 268-5800.

Thomas S Messer Jr is licensed to practice in Mississippi (license number 09469) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1639284888.

Contact Information

Thomas S Messer Jr, MD
415 S 28th Ave,
Hattiesburg, MS 39401-7246
(601) 268-5800
(601) 261-3530

Map and Direction




Physician's Profile

Full NameThomas S Messer Jr
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
Location415 S 28th Ave, Hattiesburg, Mississippi
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1639284888
  • Provider Enumeration Date: 08/20/2006
  • Last Update Date: 08/23/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 7618946260
  • Enrollment ID: I20040929001248

Medical Identifiers

Medical identifiers for Thomas S Messer Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639284888NPI-NPPES
1558960OtherMSAMERICAN ADMIN GROUP
00018802MedicaidMS
009806310MedicaidAL
110005591OtherMSRAILROAD MEDICARE
1919667MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0011XInternal Medicine - Interventional Cardiology 09469 (Mississippi)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease 09469 (Mississippi)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Thomas S Messer Jr allows following entities to bill medicare on his behalf.
Entity NameForrest County General Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295837631
PECOS PAC ID: 1052397767
Enrollment ID: O20040624001351
Entity NameFgh Physician Billing
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053469700
PECOS PAC ID: 1850344946
Enrollment ID: O20050301000617
Entity NameWalthall General Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245512417
PECOS PAC ID: 3678766094
Enrollment ID: O20111103000238

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Thomas S Messer Jr is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Thomas S Messer Jr, MD
415 S 28th Ave,
Hattiesburg, MS 39401-7246

Ph: (601) 268-5800
Thomas S Messer Jr, MD
415 S 28th Ave,
Hattiesburg, MS 39401-7246

Ph: (601) 268-5800

Reviews and Comments


Internal Medicine Doctors in Hattiesburg, MS

Laurie Evans Douglas, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 301 S 28th Ave, Hattiesburg, MS 39401
Phone: 601-261-1700    Fax: 601-288-8290
Dr. Charles Ramsey Mccollum Iii, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 415 S 28th Ave, Hattiesburg, MS 39401
Phone: 601-268-5650    Fax: 601-579-5212
Porter Hudson Glover, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 415 S 28th Ave, Hattiesburg, MS 39401
Phone: 601-268-5680    Fax: 601-268-5778
Alex Gauthier,
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 5001 Hardy St, Hattiesburg, MS 39402
Phone: 601-268-8000    
Grettel Rodriguez Garcia,
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 31 Woodstone Dr, Hattiesburg, MS 39402
Phone: 347-342-2441    
Ms. Manal Mohammad Abdur Rahman, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 7 Medical Blvd, Hattiesburg, MS 39401
Phone: 601-296-2990    Fax: 601-296-2860
Dr. Vashishtha Patel, DO
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 5001 Hardy St, Hattiesburg, MS 39402
Phone: 704-733-7499    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.