DR. WILLIAM ADDISON WARREN M.D. NPI 1669478285

NPI Information

  • NPI: 1669478285
  • Provider Name: DR. WILLIAM ADDISON WARREN, M.D.
  • Classification: Internal Medicine - 207R00000X
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 8871 GORMAN ROAD
    STE 300
    LAUREL, MD
    ZIP 20723
  • Phone: (301) 498-3150

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NPI Details

DR. William Addison Warren, M.D. is an internal medicine in Laurel, MD. The provider is a physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. DR. William Addison Warren, M.D. NPI is 1669478285. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

8871 GORMAN ROAD
STE 300
LAUREL, MD
ZIP 20723
Phone: (301) 498-3150
Fax: (301) 490-2411

The NPI 1669478285 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The enumeration date for this NPI number is 6/28/2005 and was last updated on 6/6/2016.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1207RP1001XInternal MedicinePulmonary DiseaseD13916MARYLANDNo
2207R00000XInternal MedicineD13916MARYLANDYes

Other Identifiers

The following information regarding additional identifiers associated to this NPI record includes the other identifier number, identifier type, identifier state and issuer.

No. Other Provider Identifier Other Provider Identifier Type Other Provider Identifier State Other Provider Identifier Issuer
136778001OTHERMARYLANDBLUE SHIELD OF MD
2942020000MEDICARE ID-TYPE UNSPECIFIEDMARYLAND
380160003OTHERDISTRICT OF COLUMBIABLUE SHIELD NATIONAL AREA
4D09329MEDICARE UPINMARYLAND
5411701800MEDICAIDMARYLAND

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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