Dr Thomas A Roisum, MD - Medicare Pathology in Enid, OK

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Dr Thomas A Roisum, MD is a medicare enrolled "Pathology - Anatomic Pathology & Clinical Pathology" physician in Enid, Oklahoma. He went to University Of North Dakota School Of Medicine and graduated in 1995 and has 31 years of diverse experience with area of expertise as Pathology. He is a member of the group practice Mawd Pathologists Llc, Avera St Lukes, Mawd Pathology Group Pa and his current practice location is 305 S 5th St, Enid, Oklahoma. You can reach out to his office (for appointments etc.) via phone at (913) 396-8509.

Dr Thomas A Roisum is licensed to practice in Oklahoma (license number 34698) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1528171964.

Contact Information

Dr Thomas A Roisum, MD
305 S 5th St,
Enid, OK 73701-5832
(913) 396-8509
(913) 318-8378

Map and Direction




Physician's Profile

Full NameDr Thomas A Roisum
GenderMale
SpecialityPathology
Experience31 Years
Location305 S 5th St, Enid, Oklahoma
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Thomas A Roisum attended and graduated from University Of North Dakota School Of Medicine in 1995
  NPI Data:
  • NPI Number: 1528171964
  • Provider Enumeration Date: 08/17/2006
  • Last Update Date: 06/15/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 0345347753
  • Enrollment ID: I20220516002777

Medical Identifiers

Medical identifiers for Dr Thomas A Roisum such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528171964NPI-NPPES
1C220032011OtherMORAILROAD MEDICARE
201085050AMedicaidOK

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology 36424 (Iowa)Secondary
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology 15065 (North Dakota)Secondary
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology 34698 (Oklahoma)Primary
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology 109630 (Missouri)Secondary
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology MD479037 (Pennsylvania)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Mary's Regional Medical CenterEnid, OKHospital
Integris Bass Baptist Health CenterEnid, OKHospital
Avera St LukesAberdeen, SDHospital
Marshall County Healthcare Center - CahBritton, SDHospital
Integris Baptist Medical Center, IncOklahoma city, OKHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mawd Pathologists Llc519310202828
Avera St Lukes6406764927168
Mawd Pathology Group Pa266842138939

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. Dr Thomas A Roisum allows following entities to bill medicare on his behalf.
Entity NameMawd Pathology Group Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033108519
PECOS PAC ID: 2668421389
Enrollment ID: O20180924000194
Entity NameMawd Pathologists Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376209130
PECOS PAC ID: 5193102028
Enrollment ID: O20240916000424

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. Dr Thomas A Roisum 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
Dr Thomas A Roisum, MD
261 Hummingbird Ln,
Hannibal, MO 63401-6931

Ph: (573) 231-0130		Dr Thomas A Roisum, MD
305 S 5th St,
Enid, OK 73701-5832

Ph: (913) 396-8509

Reviews and Comments


Pathology Doctors in Enid, OK

Dr. Mary Caroline Fieber, MD
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Phone: 580-237-0171    Fax: 580-237-0412
Dr. Cuong Manh Nguyen, DO
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Practice Location: 527 Gott Rd, Enid, OK 73705
Phone: 580-213-7098    
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Practice Location: 1204 W. Willow Road Ste C, Enid, OK 73703
Phone: 866-600-2273    

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.