1. Home
  2. Directory
  3. Texas
  4. Houston
  5. Obstetrics Gynecology
  6. NPI Profile

CYPRESS OBGYN
NPI 1033393400
Obstetrics & Gynecology in Houston, TX

Active since December 20, 2007CLIA 45D1050724 · Certificate of Compliance
10680 JONES RD STE 100, HOUSTON, TX 77065(281) 477-0417(281) 477-0166 Get Directions Write a Review

NPPES record last updated: April 18, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Cypress Obgyn NPPES

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

CYPRESS OBGYN (NPI 1033393400) is a healthcare organization registered as an obstetrics & gynecology in Houston, Texas and active in the NPI registry since December 2007. The organization holds a CLIA Certificate of Compliance certificate valid through September 25, 2028 and lists Oanh Ngoc Bui, Physican, as its authorized official.

NPPES Registry Identity

NPI1033393400
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameOANH NGOC BUI DO PA
Location Address10680 JONES RD STE 100Houston, TX 77065-4214
Mailing Address10680 Jones Rd Ste 100Houston, TX 77065-4214 · (281) 894-2900 · Fax (281) 477-0166
Phone(281) 477-0417
Fax(281) 477-0166
Organization SubpartNo
Authorized OfficialOanh Ngoc BuiPhysican · (281) 894-2900
Enumeration DateDecember 20, 2007
Last NPPES UpdateApril 18, 2019
✔ NPI 1033393400 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
10680 JONES RD STE 100, Houston, TX 77065
Open in Google Maps ↗

Other Names 1

Doing Business AsCypress Obgyn

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cypress Obgyn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Cypress Obgyn, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (6)

Oanh Bui, D.O.
Obstetrics/Gynecology
NPI 1780790204
10680 JONES RD STE 600
Houston, TX 77065
(281) 477-0417
✔ PECOS✔ Accepts MedicareSame address
Kimberly Caldwell, NRP-C
Nurse Practitioner
NPI 1841036522
10680 JONES RD
Houston, TX 77065
(281) 477-0417
✔ PECOS✔ Accepts MedicareSame address
Joseph Castillo, MD
Obstetrics/Gynecology
NPI 1659348969
10680 JONES RD STE 600
Houston, TX 77065
(281) 477-0417
✔ PECOS✔ Accepts MedicareSame address
Shanna Willis, CNM
Certified Nurse Midwife (CNM)
NPI 1780261834
419 GENTRY ST
Spring, TX 77373
(281) 296-0343
✔ PECOS✔ Accepts Medicare14 mi
Moyosore Adeyekun, M.D
Obstetrics/Gynecology
NPI 1710240080
23960 KATY FWY STE 350
Katy, TX 77494
(713) 464-1845
✔ PECOS✔ Accepts Medicare16 mi
Lavoris Brown Smith, MD
Obstetrics/Gynecology
NPI 1245582014
1415 CALIFORNIA ST
Houston, TX 77006
(832) 548-5000
✔ PECOS17 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 45D1050724

Cypress Ob Gyn · Houston, TX
Active · expires Sep 25, 2028
CLIA Number45D1050724
Laboratory TypePhysician Office
Certificate Effective DateSeptember 26, 2026
Certificate Expiration DateSeptember 25, 2028
Laboratory DirectorOanh N. Bui
Laboratory Phone(281) 477-0417
Laboratory LocationCypress Ob Gyn10680 Jones Rd Ste 600, Houston, TX 77065
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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 Oanh Ngoc Bui Do PA's NPI number?

The NPI number for Oanh Ngoc Bui Do PA is 1033393400. It was assigned to this organization in the NPPES registry on December 20, 2007. The provider is doing business as Cypress Obgyn.

Where is Oanh Ngoc Bui Do PA located?

Oanh Ngoc Bui Do PA is located at 10680 Jones Rd Ste 100, Houston, TX 77065. The listed phone number is (281) 477-0417.

What is Oanh Ngoc Bui Do PA's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Oanh Ngoc Bui Do PA enrolled in Medicare?

Yes. Oanh Ngoc Bui Do PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oanh Ngoc Bui Do PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 3 Medicare specialties reassign their Medicare billing to Oanh Ngoc Bui Do PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Obstetrics/Gynecology (4), Certified Nurse Midwife (CNM) (1) and Nurse Practitioner (1). Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Oanh Ngoc Bui Do PA hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 45D1050724) is associated with this NPI, valid through September 25, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Oanh Ngoc Bui Do PA was last updated on April 18, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.