William Simpson, M.D

NPI: 1124092309

William Simpson, M.D

Q: What is William Simpson's NPI number?

William Simpson's NPI number is 1124092309, a unique 10-digit identifier issued by CMS.

Q: What does William Simpson specialize in?

William Simpson specializes in Internal Medicine, taxonomy code 207R00000X.

Q: Where does William Simpson practice?

William Simpson practices in Warrenton, VA 20186-2428.

Q: When was William Simpson's NPI issued?

William Simpson's NPI was issued on February 15, 2006.

Q: What is William Simpson's provider type?

William Simpson is an Individual Provider under CMS NPI Type 1.

ActiveIndividual ProviderInternal Medicine

NPI issued: February 15, 2006

Quick Facts

NPI Number

1124092309

TypeIndividual

StatusActive

SpecialtyInternal Medicine

Taxonomy207R00000X — Internal Medicine

Phone

(833) 362-8800

StateVA

NPI Validation Status: Verified

✅Valid 10-digit NPI number (1124092309)

✅Active status confirmed

✅Verified by CMS NPPES Registry

✅HIPAA compliant identifier

✅Enumeration date on file (February 15, 2006)

Data source: CMS NPPES

Provider Overview

WILLIAM SIMPSON, M.D is a Internal Medicine provider based in Warrenton, VA who has been registered with CMS since 2006. This NPI is currently Active under CMS NPPES registry.

Provider Details

NPI Number1124092309

Provider TypeIndividual Provider

GenderMale

CredentialM.D

StatusActive

Enumeration DateFebruary 15, 2006

Practice Location

CityWarrenton

StateVA

ZIP Code20186-2428

Phone(833) 362-8800

Specialties & Licenses

★ Primary

SpecialtyInternal Medicine

Taxonomy Code207R00000X

License StateVA

Mailing Address

CityWarrenton

StateVA

ZIP Code20186-2428

Phone(833) 362-8800

Same as practice location

How to Use This NPI

📋

For Insurance Billing

Use NPI 1124092309 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.

🏥

For Credentialing

Reference NPI 1124092309for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.

👤

For Patients

Share NPI 1124092309 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.

About Internal Medicine

Internal Medicine physicians (internists) specialize in the prevention, diagnosis, and nonsurgical treatment of adult illnesses, managing complex chronic conditions and multi-system diseases.

Browse all Internal Medicineproviders →

📊

213,549

Internal Medicine Providers in the US