MRS. MARILYN ELIZABETH NIBLOCK NNP
NPI 1104880053
Nurse Practitioner - Neonatal in Georgetown, TX
About Mrs. Marilyn Elizabeth Niblock Nnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARILYN ELIZABETH NIBLOCK NNP (NPI 1104880053) is an individual neonatal provider in Georgetown, Texas, licensed in Texas (506272) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
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)
Mrs. Marilyn Elizabeth Niblock Nnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Marilyn Niblock reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Round Rock, TX 78681
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Dell Childrens Medical Group
- 576 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78633 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Marilyn Niblock's NPI number?
The NPI number for Marilyn Niblock is 1104880053. It was assigned to this individual provider in the NPPES registry on April 15, 2006.
Where is Marilyn Niblock located?
Marilyn Niblock practices at 1231 Fm 3405, Georgetown, TX 78633. The listed phone number is (512) 930-1628.
What is Marilyn Niblock's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Neonatal, with taxonomy code 363LN0000X.
Is Marilyn Niblock enrolled in Medicare?
Yes. Marilyn Niblock is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Marilyn Niblock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Niblock reassigns Medicare benefits to Dell Children's Medical Group (Round Rock, TX). The 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 Marilyn Niblock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marilyn Niblock accept?
Health plans from Blue Cross and Blue Shield of Texas, Harbor Health, Moda Health Plan, Inc., Oscar Insurance Company and Sendero Health Plans, Local Nonprofit list Marilyn Niblock 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 Marilyn Niblock was last updated on July 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# Mrs. Marilyn Elizabeth Niblock, NNP · NPI 1104880053
Neonatal physician in Georgetown, Texas. Individual provider, active in the CMS NPPES registry since April 15, 2006.
## Identity
- **NPI:** 1104880053 (Entity type: Individual)
- **Enumerated:** April 15, 2006
- **Primary specialty:** Nurse Practitioner - Neonatal · taxonomy 363LN0000X
- **State license:** 506272 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 1231 FM 3405, Georgetown, TX 78633-4344
- **Phone:** (512) 930-1628
## 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:** Dell Children's Medical Group (NPI 1790103869, Round Rock, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 11, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1104880053) · Data from the CMS NPPES public registry.