THELMA JEAN STIEGLER FNP
NPI 1427728880
Nurse Practitioner in Rehoboth Beach, DE
About Thelma Jean Stiegler Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THELMA JEAN STIEGLER FNP (NPI 1427728880) is an individual nurse practitioner in Rehoboth Beach, Delaware, licensed in Delaware (LG-0013128) and active in the NPI registry since September 2021. She is enrolled in Medicare PECOS, maintains 6 additional practice locations, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 6
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Thelma Jean Stiegler Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Thelma Stiegler reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lewes, DE 19958
- Reassigned Medicare billing, Delaware enrollment
- 382 clinicians in this Medicare group
Lewes, DE 19958
- Reassigned Medicare billing, Delaware enrollment
- 23 clinicians in this Medicare group
Hastings, MN 55033
- Reassigned Medicare billing, Minnesota enrollment
- 3,733 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19971 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
REHOBOTH BEACH, DE 19971
REHOBOTH BEACH, DE 19971
REHOBOTH BEACH, DE 19971
REHOBOTH BEACH, DE 19971
REHOBOTH BEACH, DE 19971
REHOBOTH BEACH, DE 19971
REHOBOTH BEACH, DE 19971
REHOBOTH BEACH, DE 19971
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 Thelma Stiegler's NPI number?
The NPI number for Thelma Stiegler is 1427728880. It was assigned to this individual provider in the NPPES registry on September 16, 2021. The provider is also known as Thelma Jean St.Amour.
Where is Thelma Stiegler located?
Thelma Stiegler practices at 18947 John J Williams Hwy Unit 101, Rehoboth Beach, DE 19971. The listed phone number is (302) 645-3010.
What is Thelma Stiegler's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Thelma Stiegler enrolled in Medicare?
Yes. Thelma Stiegler is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Thelma Stiegler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thelma Stiegler reassigns Medicare benefits to 3 organizations: Beebe Physician Network, Inc. (Lewes, DE), Beebe Medical Center, Inc. (Lewes, DE) and Allina Health System (Hastings, MN). 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 Thelma Stiegler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thelma Stiegler accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Ambetter from NH Healthy Families and 5 other insurers list Thelma Stiegler 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.
When was this NPI record last updated?
The NPPES record for Thelma Stiegler was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 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.
# Thelma Jean Stiegler, FNP · NPI 1427728880
Nurse Practitioner physician in Rehoboth Beach, Delaware. Individual provider, active in the CMS NPPES registry since September 16, 2021.
## Identity
- **NPI:** 1427728880 (Entity type: Individual)
- **Enumerated:** September 16, 2021
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** LG-0013128 (Delaware)
- **Sole proprietor:** No
## Practice location
- **Address:** 18947 JOHN J WILLIAMS HWY UNIT 101, Rehoboth Beach, DE 19971-4480
- **Phone:** (302) 645-3010 · **Fax:** (302) 645-5718
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Beebe Physician Network, Inc. (NPI 1730133992, Lewes, DE); Beebe Medical Center, Inc. (NPI 1821196486, Lewes, DE); Allina Health System (NPI 1881118149, Hastings, MN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** September 30, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1427728880) · Data from the CMS NPPES public registry.