CHRISTINA S JOHN NP-C
NPI 1437789906
Nurse Practitioner - Family in Houston, TX
About Christina S John Np-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINA S JOHN NP-C (NPI 1437789906) is an individual family provider in Houston, Texas, licensed in Texas (AP144213) and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Christina S John Np-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Christina John reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Austin, TX 78731
- Reassigned Medicare billing, Texas enrollment
- 33 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 77025 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
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 Christina John's NPI number?
The NPI number for Christina John is 1437789906. It was assigned to this individual provider in the NPPES registry on January 23, 2020.
Where is Christina John located?
Christina John practices at 3914 Gramercy St Ste A, Houston, TX 77025. The listed phone number is (713) 888-0881.
What is Christina John's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Christina John enrolled in Medicare?
Yes. Christina John is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Christina John's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christina John reassigns Medicare benefits to Sinus & Allergy Specialists Of Texas (Austin, 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 Christina John's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Christina John was last updated on January 23, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Christina S John, NP-C · NPI 1437789906
Family physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since January 23, 2020.
## Identity
- **NPI:** 1437789906 (Entity type: Individual)
- **Enumerated:** January 23, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP144213 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 3914 GRAMERCY ST STE A, Houston, TX 77025-1107
- **Phone:** (713) 888-0881
## 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:** Sinus & Allergy Specialists Of Texas (NPI 1639510803, Austin, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** January 23, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1437789906) · Data from the CMS NPPES public registry.