Registry record
- NPI
- 1437789906
- Profession
- Nurse Practitioner (NP)
- Specialty
- Family Nurse Practitioner (363LF0000X)
- Practice address
- 3914 Gramercy St Ste A
Houston, TX 77025 - Phone
- 7138880881
- In the registry since
- January 23, 2020
- Last NPPES update
- January 23, 2020
- Sole proprietor
- No
- License
- AP144213 (TX)
At this location
One other provider in our data lists 3914 Gramercy St Ste A, Houston as a practice address:
- Amanda Silva, PA-C
Physician Assistant · NPI 1245976315
In context
The NPI number of Christina John is 1437789906. They are a Family Nurse Practitioner in Houston, Texas.
Christina John is one of 2,753 Family Nurse Practitioners in Houston and one of 22,499 across Texas in our data. Houston ranks #1 among Texas cities in our dataset, with 8,326 NP and PA providers.
The NPI has been in the federal registry for 6 years, since January 23, 2020.
Frequently asked questions
What is NPI 1437789906?
NPI 1437789906 is the 10-digit National Provider Identifier assigned to Christina John, a Family Nurse Practitioner practicing in Houston, Texas. The record has been in the NPPES registry since January 23, 2020.
How do I verify this provider?
Cross-check NPI 1437789906 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP144213 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.
Is this information current?
This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as January 23, 2020. We refresh our data each month when CMS publishes a new file.
Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.