Registry record
- NPI
- 1750834164
- Profession
- Physician Assistant (PA)
- Specialty
- Physician Assistant (363A00000X)
- Practice address
- 621 N Hall St, Suite 400
Dallas, TX 75226 - Phone
- 4698007400
- In the registry since
- August 2, 2016
- Last NPPES update
- March 2, 2026
- Sole proprietor
- Yes
- License
- PA10700 (TX)
At this location
14 other providers in our data list 621 N Hall St, Dallas as a practice address:
- Ron Barrett, PA
Medical Physician Assistant · NPI 1114938065
- Joy Cooper
Acute Care Nurse Practitioner · NPI 1811627623
- Kelly Nicole Dorsey, AGACNP-BP
Nurse Practitioner · NPI 1821642760
- Mrs. Brigitte Faughn
Nurse Practitioner · NPI 1740139542
- Chelsea Leigh Hampton
Acute Care Nurse Practitioner · NPI 1598277386
- Ms. Bailey Marie Isenberg, FNP-C
Family Nurse Practitioner · NPI 1689059966
- Megan Elizabeth Lee, APRN
Acute Care Nurse Practitioner · NPI 1275037004
- Patricia Ann Melly, PA-C
Medical Physician Assistant · NPI 1225493711
- Ashley Moore, RN, AGACNP-BC
Acute Care Nurse Practitioner · NPI 1184017543
- Mrs. Olivia Obazughanmwen, APRN, FNP-C
Family Nurse Practitioner · NPI 1124689781
In context
The NPI number of Marianne Siebert is 1750834164. They are a Physician Assistant in Dallas, Texas.
Marianne Siebert is one of 1,215 Physician Assistants in Dallas and one of 11,405 across Texas in our data. Dallas ranks #2 among Texas cities in our dataset, with 4,918 NP and PA providers.
The NPI has been in the federal registry for 9 years, since August 2, 2016.
Frequently asked questions
What is NPI 1750834164?
NPI 1750834164 is the 10-digit National Provider Identifier assigned to Marianne Siebert, a Physician Assistant practicing in Dallas, Texas. The record has been in the NPPES registry since August 2, 2016.
How do I verify this provider?
Cross-check NPI 1750834164 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license PA10700 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 March 2, 2026. 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.