DEREK FIKSE DO
NPI 1528417599
Emergency Medicine - Medical Toxicology in Allentown, PA
About Derek Fikse Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEREK FIKSE DO (NPI 1528417599) is an individual medical toxicology provider in Allentown, Pennsylvania, licensed in Pennsylvania (OS020901) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Lehigh Valley Hospital, and maintains a secondary practice location in Bethlehem.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Derek Fikse Do 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 Fikse reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Allentown, PA 18103
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,895 clinicians in this Medicare group
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,739 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 7
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lehigh Valley Hospital
Acute Care Hospitals · Allentown, PALehigh Valley Hospital - Hazleton
Acute Care Hospitals · Hazleton, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 18103 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.
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
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 Fikse's NPI number?
The NPI number for Derek Fikse is 1528417599. It was assigned to this individual provider in the NPPES registry on June 9, 2016.
Where is Derek Fikse located?
Derek Fikse practices at 1200 S Cedar Crest Blvd, Allentown, PA 18103. The listed phone number is (610) 402-8000.
What is Derek Fikse's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Medical Toxicology, with taxonomy code 207PT0002X.
Is Derek Fikse enrolled in Medicare?
Yes. Derek Fikse 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 Fikse's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Derek Fikse reassigns Medicare benefits to 2 organizations: Lehigh Valley Physician Group (Allentown, PA) and Jefferson University Physicians (Philadelphia, PA). 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 Fikse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Derek Fikse affiliated with any hospitals?
According to CMS data, Derek Fikse is affiliated with Lehigh Valley Hospital and Lehigh Valley Hospital - Hazleton.
When was this NPI record last updated?
The NPPES record for Derek Fikse was last updated on December 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Derek Fikse, DO · NPI 1528417599
Medical Toxicology physician in Allentown, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 9, 2016.
## Identity
- **NPI:** 1528417599 (Entity type: Individual)
- **Enumerated:** June 9, 2016
- **Primary specialty:** Emergency Medicine - Medical Toxicology · taxonomy 207PT0002X
- **State license:** OS020901 (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1200 S CEDAR CREST BLVD, Allentown, PA 18103-6202
- **Phone:** (610) 402-8000
## 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): Lehigh Valley Physician Group (NPI 1649289141, Allentown, PA); Jefferson University Physicians (NPI 1326093675, Philadelphia, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** December 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1528417599) · Data from the CMS NPPES public registry.