Mark Cal Shaw, MD - Medicare Emergency Medicine in Bernice, LA

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Mark Cal Shaw, MD is a medicare enrolled "Family Medicine" physician in Bernice, Louisiana. He went to University Of Texas Medical School At Houston and graduated in 1996 and has 29 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Acs Primary Care Physicians Southwest Pa, Ess Of Nacogdoches Llc, Integrative Emergency Services Physician Group-houston Pllc and his current practice location is 402 Second St., Bernice, Louisiana. You can reach out to his office (for appointments etc.) via phone at (318) 285-9066.

Mark Cal Shaw is licensed to practice in Louisiana (license number MD023225) 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 1881644938.

Contact Information

Mark Cal Shaw, MD
402 Second St.,
Bernice, LA 71222
(318) 285-9066
(318) 285-9065

Map and Direction




Physician's Profile

Full NameMark Cal Shaw
GenderMale
SpecialityEmergency Medicine
Experience29 Years
Location402 Second St., Bernice, Louisiana
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:
  • Mark Cal Shaw attended and graduated from University Of Texas Medical School At Houston in 1996
  NPI Data:
  • NPI Number: 1881644938
  • Provider Enumeration Date: 05/11/2006
  • Last Update Date: 10/07/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 3779500129
  • Enrollment ID: I20101022000734

Medical Identifiers

Medical identifiers for Mark Cal Shaw such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1881644938NPI-NPPES
1495611MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine MD023225 (Louisiana)Primary
207P00000XEmergency Medicine M9001 (Texas)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ut Health East Texas Jacksonville HospitalJacksonville, TXHospital
Chi St Lukes Health Memorial LufkinLufkin, TXHospital
Nacogdoches County Hospital DistrictNacogdoches, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Acs Primary Care Physicians Southwest Pa1850204363194
Ess Of Nacogdoches Llc337582163019
Integrative Emergency Services Physician Group-houston Pllc7113258500193

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. Mark Cal Shaw allows following entities to bill medicare on his behalf.
Entity NameAcs Primary Care Physicians Southwest Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538101019
PECOS PAC ID: 1850204363
Enrollment ID: O20041206000027
Entity NameAngelina Emergency Medicine Associates Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518397298
PECOS PAC ID: 5395973564
Enrollment ID: O20140115000579
Entity NameEss Of Nacogdoches Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780139956
PECOS PAC ID: 3375821630
Enrollment ID: O20161021000335
Entity NameIntegrative Emergency Services Physician Group-houston Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801458708
PECOS PAC ID: 7113258500
Enrollment ID: O20191016002208
Entity NameBonita Creek Emergency Services Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902555485
PECOS PAC ID: 0345623872
Enrollment ID: O20220817000640

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. Mark Cal Shaw 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
Mark Cal Shaw, MD
741 Hidden Valley Dr.,
Garrison, TX 75946

Ph: (936) 715-9869		Mark Cal Shaw, MD
402 Second St.,
Bernice, LA 71222

Ph: (318) 285-9066

Reviews and Comments


Family Medicine Doctors in Bernice, LA

Robert Brian Harris, M.D.
Family Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 402 Second St., Bernice, LA 71222
Phone: 318-285-9066    Fax: 318-285-9065
Lois A. Evans, FNP,C
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 402 Second Ave., Bernice, LA 71222
Phone: 318-285-9066    Fax: 318-285-9065

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.