KATHLEEN GRENNAN CNM, APRN
NPI 1770857559
Advanced Practice Midwife in Fort Worth, TX
About Kathleen Grennan Cnm, Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHLEEN GRENNAN CNM, APRN (NPI 1770857559) is an individual advanced practice midwife in Fort Worth, Texas and active in the NPI registry since February 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Fort Worth.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Secondary Practice Location 1
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)
Kathleen Grennan Cnm, Aprn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Kathleen Grennan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Worth, TX 76104
- Reassigned Medicare billing, Texas enrollment
- 8 clinicians in this Medicare group
Denton, TX 76207
- Reassigned Medicare billing, Texas enrollment
- 17 clinicians in this Medicare group
Austin, TX 78758
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Obhg Texas Holdings PA
- 998 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 76104 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.
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 Kathleen Grennan's NPI number?
The NPI number for Kathleen Grennan is 1770857559. It was assigned to this individual provider in the NPPES registry on February 27, 2012. The provider is also known as Katie Grennan.
Where is Kathleen Grennan located?
Kathleen Grennan practices at 622 Hemphill St, Fort Worth, TX 76104. The listed phone number is (817) 878-2737.
What is Kathleen Grennan's specialty?
The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.
Is Kathleen Grennan enrolled in Medicare?
Yes. Kathleen Grennan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Kathleen Grennan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Grennan reassigns Medicare benefits to 3 organizations: Midwife & Company PLLC (Fort Worth, TX), Health Services Of North Texas, Inc. (Denton, TX) and Obhg Texas Holdings, P.A. (Austin, TX). 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 Kathleen Grennan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kathleen Grennan accept?
Health plans from Blue Cross and Blue Shield of Texas, Harbor Health and Molina Healthcare list Kathleen Grennan 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 Kathleen Grennan was last updated on September 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Kathleen Grennan, CNM, APRN · NPI 1770857559
Advanced Practice Midwife physician in Fort Worth, Texas. Individual provider, active in the CMS NPPES registry since February 27, 2012.
## Identity
- **NPI:** 1770857559 (Entity type: Individual)
- **Enumerated:** February 27, 2012
- **Primary specialty:** Advanced Practice Midwife · taxonomy 367A00000X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 622 HEMPHILL ST, Fort Worth, TX 76104-3179
- **Phone:** (817) 878-2737
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Midwife & Company PLLC (NPI 1407517808, Fort Worth, TX); Health Services Of North Texas, Inc. (NPI 1235154824, Denton, TX); Obhg Texas Holdings, P.A. (NPI 1083917769, Austin, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 19, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1770857559) · Data from the CMS NPPES public registry.