MRS. SALEEN GIGI MANNIL AGNP-C
NPI 1821659798
Nurse Practitioner - Gerontology in Houston, TX
About Mrs. Saleen Gigi Mannil Agnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. SALEEN GIGI MANNIL AGNP-C (NPI 1821659798) is an individual gerontology provider in Houston, Texas, licensed in Texas (AP140199) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Houston, and is a graduate of University Of Texas Medical Branch At Galveston (2017).
NPPES Registry Identity
Specialties & Licenses
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 and accepts Medicare assignment
Mrs. Saleen Gigi Mannil Agnp-c 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
4Medicare enrollment records show Saleen Mannil reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Houston, TX 77025
- Reassigned Medicare billing, Texas enrollment
- 1,649 clinicians in this Medicare group
Houston, TX 77054
- Reassigned Medicare billing, Texas enrollment
- 158 clinicians in this Medicare group
Houston, TX 77054
- Reassigned Medicare billing, Texas enrollment
- 143 clinicians in this Medicare group
Austin, TX 78704
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Wellmed Medical Group PA
- 762 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 2
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 77023 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 2
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 Saleen Mannil's NPI number?
The NPI number for Saleen Mannil is 1821659798. It was assigned to this individual provider in the NPPES registry on June 21, 2019. The provider is also known as Mrs. Saleen Mathews.
Where is Saleen Mannil located?
Saleen Mannil practices at 5815 Gulf Fwy Ste 100, Houston, TX 77023. The listed phone number is (713) 643-0012.
What is Saleen Mannil's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Saleen Mannil enrolled in Medicare?
Yes. Saleen Mannil 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 Saleen Mannil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Saleen Mannil reassigns Medicare benefits to 4 organizations: Kelsey-Seybold Medical Group, PLLC (Houston, TX), Trumen Physicians And Associates PLLC (Houston, TX), Trumen Physician And Associates Post Acute PLLC (Houston, TX) and Wellmed Medical Group, 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 Saleen Mannil's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Saleen Mannil accept?
Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Saleen Mannil 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 Saleen Mannil was last updated on January 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Mrs. Saleen Gigi Mannil, AGNP-C · NPI 1821659798
Gerontology physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since June 21, 2019.
## Identity
- **NPI:** 1821659798 (Entity type: Individual)
- **Enumerated:** June 21, 2019
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** AP140199 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 5815 GULF FWY STE 100, Houston, TX 77023-5362
- **Phone:** (713) 643-0012 · **Fax:** (713) 643-5808
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Kelsey-Seybold Medical Group, PLLC (NPI 1013915255, Houston, TX); Trumen Physicians And Associates PLLC (NPI 1134442320, Houston, TX); Trumen Physician And Associates Post Acute PLLC (NPI 1316801004, Houston, TX); Wellmed Medical Group, P.A. (NPI 1437457710, Austin, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 2017
## Record status
- **NPPES last updated:** January 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821659798) · Data from the CMS NPPES public registry.