Registry record
- NPI
- 1164945655
- Profession
- Nurse Practitioner (NP)
- Specialty
- Obstetrics & Gynecology Nurse Practitioner (363LX0001X)
- Practice address
- 7500 Main St, Suite 260
Houston, TX 77054 - Phone
- 8323579909
- In the registry since
- July 17, 2017
- Last NPPES update
- February 18, 2025
- Sole proprietor
- No
- License
- 0024175113 (VA)
At this location
This location lists no other NP or PA providers in our current data.
In context
The NPI number of Margaret Tolman is 1164945655. They are a Obstetrics & Gynecology Nurse Practitioner in Houston, Texas.
Margaret Tolman is one of 27 Obstetrics & Gynecology Nurse Practitioners in Houston and one of 189 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 8 years, since July 17, 2017.
Frequently asked questions
What is NPI 1164945655?
NPI 1164945655 is the 10-digit National Provider Identifier assigned to Margaret Tolman, a Obstetrics & Gynecology Nurse Practitioner practicing in Houston, Texas. The record has been in the NPPES registry since July 17, 2017.
How do I verify this provider?
Cross-check NPI 1164945655 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 0024175113 with the VA 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 February 18, 2025. 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.