MR. DEREK M WEST ACNP-BC
NPI 1164756664
Nurse Practitioner - Acute Care in Evansville, IN
About Mr. Derek M West Acnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. DEREK M WEST ACNP-BC (NPI 1164756664) is an individual acute care provider in Evansville, Indiana, licensed in Indiana (71003054A) and active in the NPI registry since September 2009. He is enrolled in Medicare PECOS, is affiliated with Ascension St Vincent Evansville, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. Derek M West Acnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Derek West reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Evansville, IN 47710
- Reassigned Medicare billing, Indiana enrollment
- 34 clinicians in this Medicare group
Evansville, IN 47710
- Reassigned Medicare billing, Indiana enrollment
- Medicare enrollment name: Deaconess Specialty Physicians, Inc
- 264 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension St Vincent Evansville
Acute Care Hospitals · Evansville, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 47710 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EVANSVILLE, IN 47710
EVANSVILLE, IN 47710
EVANSVILLE, IN 47710
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Derek West's NPI number?
The NPI number for Derek West is 1164756664. It was assigned to this individual provider in the NPPES registry on September 30, 2009.
Where is Derek West located?
Derek West practices at 520 Mary St Ste 520, Evansville, IN 47710. The listed phone number is (812) 424-8231.
What is Derek West's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Derek West enrolled in Medicare?
Yes. Derek West is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Derek West's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek West reassigns Medicare benefits to 2 organizations: Evansville Surgical Associates Inc (Evansville, IN) and Deaconess Speciality Physicians, Inc (Evansville, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Derek West's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Derek West accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 1 other insurer list Derek West as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Derek West affiliated with any hospitals?
According to CMS data, Derek West is affiliated with Ascension St Vincent Evansville.
When was this NPI record last updated?
The NPPES record for Derek West was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. Derek M West, ACNP-BC · NPI 1164756664
Acute Care physician in Evansville, Indiana. Individual provider, active in the CMS NPPES registry since September 30, 2009.
## Identity
- **NPI:** 1164756664 (Entity type: Individual)
- **Enumerated:** September 30, 2009
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 71003054A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 520 MARY ST STE 520, Evansville, IN 47710-1682
- **Phone:** (812) 424-8231 · **Fax:** (812) 435-8794
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Evansville Surgical Associates Inc (NPI 1497707517, Evansville, IN); Deaconess Speciality Physicians, Inc (NPI 1720710544, Evansville, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** September 29, 2026
- **Other identifiers:** Other 71003054A (IN); Medicaid 7100101320 (KY); Other 000000637973 (IN); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1164756664) · Data from the CMS NPPES public registry.