NPI Atlas

Martha L. Flagg, NP

Acute Care Nurse Practitioner in San Antonio, Texas. NPI 1689908832.

NPI1689908832

Registry record

NPI
1689908832
Profession
Nurse Practitioner (NP)
Specialty
Acute Care Nurse Practitioner (363LA2100X)
Practice address
4330 Medical Dr, Ste 500
San Antonio, TX 78229
Phone
2105765306
In the registry since
September 21, 2009
Last NPPES update
July 15, 2015
Sole proprietor
No
License
AP118220 (TX)

At this location

11 other providers in our data list 4330 Medical Dr, San Antonio as a practice address:

In context

The NPI number of Martha Flagg is 1689908832. They are a Acute Care Nurse Practitioner in San Antonio, Texas.

Martha Flagg is one of 303 Acute Care Nurse Practitioners in San Antonio and one of 3,743 across Texas in our data. San Antonio ranks #3 among Texas cities in our dataset, with 3,972 NP and PA providers.

The NPI has been in the federal registry for 16 years, since September 21, 2009.

Frequently asked questions

What is NPI 1689908832?

NPI 1689908832 is the 10-digit National Provider Identifier assigned to Martha Flagg, a Acute Care Nurse Practitioner practicing in San Antonio, Texas. The record has been in the NPPES registry since September 21, 2009.

How do I verify this provider?

Cross-check NPI 1689908832 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP118220 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 July 15, 2015. 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.