Dr Derrick R Duffield, M D - Medicare Emergency Medicine in Hattiesburg, MS

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Dr Derrick R Duffield, M D is a medicare enrolled "Family Medicine" physician in Hattiesburg, Mississippi. He went to Louisiana State University School Of Medicine In New Orleans 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 Hattiesburg Clinic Pa and his current practice location is 105 Thornhill Dr, Hattiesburg, Mississippi. You can reach out to his office (for appointments etc.) via phone at (601) 261-3737.

Dr Derrick R Duffield is licensed to practice in Mississippi (license number 15467) 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 1922166867.

Contact Information

Dr Derrick R Duffield, M D
105 Thornhill Dr,
Hattiesburg, MS 39402-1548
(601) 261-3737
(601) 579-5240

Map and Direction




Physician's Profile

Full NameDr Derrick R Duffield
GenderMale
SpecialityEmergency Medicine
Experience29 Years
Location105 Thornhill Dr, Hattiesburg, Mississippi
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 Derrick R Duffield attended and graduated from Louisiana State University School Of Medicine In New Orleans in 1996
  NPI Data:
  • NPI Number: 1922166867
  • Provider Enumeration Date: 12/04/2006
  • Last Update Date: 08/11/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 6204856958
  • Enrollment ID: I20051128000298

Medical Identifiers

Medical identifiers for Dr Derrick R Duffield such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922166867NPI-NPPES
00121060MedicaidMS
1030945MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PE0004XEmergency Medicine - Emergency Medical Services 15467 (Mississippi)Secondary
207Q00000XFamily Medicine 15467 (Mississippi)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hattiesburg Clinic Pa5193706794492

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 Derrick R Duffield allows following entities to bill medicare on his behalf.
Entity NameSouth Sunflower County Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184679292
PECOS PAC ID: 6709771637
Enrollment ID: O20040218000979
Entity NameHattiesburg Clinic Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740213446
PECOS PAC ID: 5193706794
Enrollment ID: O20040528000685
Entity NameForrest County General Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1295837631
PECOS PAC ID: 1052397767
Enrollment ID: O20040624001351
Entity NameKings Daughters Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043245368
PECOS PAC ID: 3072575539
Enrollment ID: O20041028000174
Entity NameKeystone Medical Services Of Ms Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174691059
PECOS PAC ID: 7618075177
Enrollment ID: O20070606000447
Entity NameClaiborne County Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710238324
PECOS PAC ID: 0244394385
Enrollment ID: O20100809000770
Entity NameAttala Emergency Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407103294
PECOS PAC ID: 5294984340
Enrollment ID: O20121004000363
Entity NameApp Of Mississippi Ed Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730687740
PECOS PAC ID: 3971865858
Enrollment ID: O20180313002534

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 Derrick R Duffield 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 Derrick R Duffield, M D
415 S 28th Ave,
Hattiesburg, MS 39401-7246

Ph: (601) 261-3737		Dr Derrick R Duffield, M D
105 Thornhill Dr,
Hattiesburg, MS 39402-1548

Ph: (601) 261-3737

Reviews and Comments


Family Medicine Doctors in Hattiesburg, MS

Katherine O'neal Royals, M.D.
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Phone: 601-579-5050    Fax: 601-579-5240
Nabih Alsheikh, M.D.
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Glenn A Campbell, MD
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Dr. Cierra Celeste Green, M.D.
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Phone: 601-544-7500    Fax: 601-544-7524
Dr. Wayne A Hughes, MD
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Phone: 601-261-5710    Fax: 601-268-5058
John Lloyd Martin,
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Practice Location: 7148 U S Highway 98 Ste 101, Hattiesburg, MS 39402
Phone: 601-261-1500    Fax: 601-579-5240
Helen Rachael Gandy Hudson, DO
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Practice Location: 15 Orleans Dr, Hattiesburg, MS 39402
Phone: 601-579-5050    Fax: 601-579-5240

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.