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DR. SONJA BOHN KRISTIANSEN M.D.
NPI 1073608295
Specialist in Houston, TX

Active since October 04, 2006CLIA 45D0928693 · Microscopy
9055 KATY FWY, SUITE 450, HOUSTON, TX 77024(713) 862-6181(713) 464-2810 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Sonja Bohn Kristiansen M.d. NPPES

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

DR. SONJA BOHN KRISTIANSEN M.D. (NPI 1073608295) is an individual specialist in Houston, Texas, licensed in Texas (H7623) and active in the NPI registry since October 2006. She holds a CLIA Microscopy certificate valid through May 22, 2027.

NPPES Registry Identity

NPI1073608295
Entity TypeIndividualFemale
Primary Taxonomy174400000X
Provider Legal NameDR. SONJA BOHN KRISTIANSENCredential: M.D.
Location Address9055 KATY FWY, SUITE 450Houston, TX 77024-1624
Mailing Address9055 Katy Fwy, Suite 450Houston, TX 77024-1624 · (713) 862-6181 · Fax (713) 464-2810
Phone(713) 862-6181
Fax(713) 464-2810
Sole ProprietorYes
Enumeration DateOctober 4, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1073608295 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in TX · H7623
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
9055 KATY FWY, Houston, TX 77024
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Other Identifiers 3

Medicare UPINF67016TX
Other0017EJTX · Bcbs Provider Number
Other2242585TX · Aetna Provider Number

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 for Provider-Performed Microscopy Procedures (PPMP) 45D0928693

Sonja Kristiansen, MD, PA · Houston, TX
Active · expires May 22, 2027
CLIA Number45D0928693
Laboratory TypePhysician Office
Certificate Effective DateMay 23, 2025
Certificate Expiration DateMay 22, 2027
Laboratory DirectorSonja B. Kristiansen MD
Laboratory Phone(713) 862-6181
Laboratory LocationSonja Kristiansen, MD, PA9055 Katy Freeway Suite 450, Houston, TX 77024
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Other Providers at the Same Location NPPES 20

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

NEXTGEN MEDICAL SERVICES, P.A.
Anesthesiology
9055 KATY FWY, SUITE 311
HOUSTON, TX 77024
Harris County (713) 461-8555
JONATHAN J. DORA, M.D.,P.A.
Plastic Surgery
9055 KATY FWY, SUITE 304
HOUSTON, TX 77024
Harris County (713) 790-0024
HAROLD J FIELDS M.D.
Family Medicine
9055 KATY FWY, STE 100
HOUSTON, TX 77024
Harris County (713) 461-2915
MEMORIAL NW OTOLARYNGOLOGY HEAD & NECK SURGERY ASSOCIATES
Otolaryngology
9055 KATY FWY, SUITE 415
HOUSTON, TX 77024
Harris County (281) 822-3777
OBSTETRICAL AND GYNECOLOGICAL ASSOCIATES
Obstetrics & Gynecology
9055 KATY FWY, SUITE 309
HOUSTON, TX 77024
Harris County (713) 512-7000
MARC H FELDMAN M.D.
Family Medicine
9055 KATY FWY, STE 200
HOUSTON, TX 77024
Harris County (713) 461-2915
DR. ALAN JESSE CHAPMAN JR. MD
Internal Medicine (Infectious Disease)
9055 KATY FWY, SUITE 400
HOUSTON, TX 77024
Harris County (713) 467-1365
DASSY SALAZAR DMD PC
Dentist (General Practice)
9055 KATY FWY, SUITE 308
HOUSTON, TX 77024
Harris County (713) 464-6885

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 Sonja Kristiansen's NPI number?

The NPI number for Sonja Kristiansen is 1073608295. It was assigned to this individual provider in the NPPES registry on October 4, 2006.

Where is Sonja Kristiansen located?

Sonja Kristiansen practices at 9055 Katy Fwy Suite 450, Houston, TX 77024. The listed phone number is (713) 862-6181.

What is Sonja Kristiansen's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Does Sonja Kristiansen hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 45D0928693) is associated with this NPI, valid through May 22, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Sonja Kristiansen was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.