Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARGARET M TSOU NP
NPI 1780645457
Nurse Practitioner in Bartlesville, OK

Q: What is Margaret Tsou's NPI number?

The NPI number for Margaret Tsou is 1780645457. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Q: What is Margaret Tsou's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Margaret Tsou was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days 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.

Active since March 31, 2006

3400 SE FRANK PHILLIPS, #502, BARTLESVILLE, OK 74006(918) 331-2577(918) 331-2513 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Margaret M Tsou Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGARET M TSOU NP (NPI 1780645457) is an individual nurse practitioner in Bartlesville, Oklahoma, licensed in Oklahoma (R0080693) and active in the NPI registry since March 2006.

NPPES Registry Identity

NPI1780645457

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMARGARET M TSOUCredential: NP

Location Address3400 SE FRANK PHILLIPS, #502Bartlesville, OK 74006

Mailing Address3400 Se Frank Phillips, #502Bartlesville, OK 74006 · (918) 331-2577 · Fax (918) 331-2513

Phone(918) 331-2577

Fax(918) 331-2513

Sole ProprietorNo

Enumeration DateMarch 31, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1780645457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in OK · R0080693

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

3400 SE FRANK PHILLIPS, Bartlesville, OK 74006

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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

WILLIAM PATRICK TINKER M.D.

Internal Medicine (Cardiovascular Disease)

3400 SE FRANK PHILLIPS, STE 502
BARTLESVILLE, OK 74006

Washington County (918) 331-2577

BLUE STEM CARDIOLOGY PC

Internal Medicine (Cardiovascular Disease)

3400 SE FRANK PHILLIPS, # 502
BARTLESVILLE, OK 74006

Washington County (918) 331-2577

MRS. MOLLIE L. BECHTELHEIMER N.P.

Nurse Practitioner (Family)

3400 SE FRANK PHILLIPS, STE 502
BARTLESVILLE, OK 74006

Washington County (918) 331-2577

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 Margaret Tsou's NPI number?

The NPI number for Margaret Tsou is 1780645457. It was assigned to this individual provider in the NPPES registry on March 31, 2006.

Where is Margaret Tsou located?

Margaret Tsou practices at 3400 SE Frank Phillips #502, Bartlesville, OK 74006. The listed phone number is (918) 331-2577.

What is Margaret Tsou's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for Margaret Tsou was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days 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.