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

FOUR CORNERS OB/GYN
NPI 1861503948
Specialist in Durango, CO

Active since August 31, 2006CLIA 06D0939918 · Microscopy
1 MERCADO ST, SUITE # 105, DURANGO, CO 81301(970) 382-8800(970) 382-0122 Get Directions Write a Review

NPPES record last updated: July 20, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 20, 2026, Mar 19, 2026, Jul 21, 2022 and 3 more (6 updates tracked since 2019).

About Four Corners Ob/gyn NPPES

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

FOUR CORNERS OB/GYN (NPI 1861503948) is a healthcare organization registered as a specialist in Durango, Colorado and active in the NPI registry since August 2006. The organization holds a CLIA Microscopy certificate valid through September 19, 2026 and lists Ruth Olbert, Admin. Assist, as its authorized official.

NPPES Registry Identity

NPI1861503948
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameFOUR CORNERS OB/GYN
Location Address1 MERCADO ST, SUITE # 105Durango, CO 81301-7300
Mailing Address1 Mercado St Ste 105Durango, CO 81301-7311 · (970) 382-8800 · Fax (970) 382-0122
Phone(970) 382-8800
Fax(970) 382-0122
Organization SubpartNo
Authorized OfficialRuth OlbertAdmin. Assist · (970) 382-8800
Enumeration DateAugust 31, 2006
Last NPPES UpdateJuly 20, 20266 updates tracked since enumeration
NPPES CertifiedJuly 20, 2026
✔ NPI 1861503948 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
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.
1 MERCADO ST, Durango, CO 81301
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Other Identifiers 1

MedicaidO4021754CO

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Superior HealthPlan, Ambetter of Oklahoma.Insurance ›

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) 06D0939918

Four Corners Ob/Gyn · Durango, CO
Active · expires Sep 19, 2026
CLIA Number06D0939918
Laboratory TypePhysician Office
Certificate Effective DateSeptember 20, 2024
Certificate Expiration DateSeptember 19, 2026
Laboratory DirectorDr. Jeunesse Fredrickson
Laboratory Phone(970) 382-8800
Laboratory LocationFour Corners Ob/Gyn1 Mercado St Suite 105, Durango, CO 81301
CLIA data matches this NPI record on: Address 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.

ARIA THERAPEUTICS & WELLNESS, LLC
Clinic/Center (Medical Specialty)
1 MERCADO ST, SUITE 150
DURANGO, CO 81301
La Plata County (970) 375-2273
PETER E JAMIESON PA
Physician Assistant
1 MERCADO ST, SUITE 202
DURANGO, CO 81301
La Plata County (970) 247-5362
JENNIFER BERRIDGE LMT, NCMT
Massage Therapist
1 MERCADO ST, SUITE 150
DURANGO, CO 81301
La Plata County (970) 375-2273
REBECCA MAULDIN RMT
Massage Therapist
1 MERCADO ST, STE 150
DURANGO, CO 81301
La Plata County (970) 375-2273
JAMES A SANTOS M.D.
Physical Medicine & Rehabilitation
1 MERCADO ST, STE 200
DURANGO, CO 81301
La Plata County (970) 382-9500
TOTAL HEALTHCARE
Family Medicine
1 MERCADO ST, SUITE 160
DURANGO, CO 81301
La Plata County (970) 385-9850
SPINE COLORADO PC
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
1 MERCADO ST, STE 200
DURANGO, CO 81301
La Plata County (970) 382-9500
PROSTHETIC DEVELOPMENT AND RESEARCH, INC.
Prosthetic/Orthotic Supplier
1 MERCADO ST, STE. 203
DURANGO, CO 81301
La Plata County (970) 259-9258

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 Four Corners Ob/Gyn's NPI number?

The NPI number for Four Corners Ob/Gyn is 1861503948. It was assigned to this organization in the NPPES registry on August 31, 2006.

Where is Four Corners Ob/Gyn located?

Four Corners Ob/Gyn is located at 1 Mercado St Suite # 105, Durango, CO 81301. The listed phone number is (970) 382-8800.

What is Four Corners Ob/Gyn's specialty?

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

Does Four Corners Ob/Gyn hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 06D0939918) is associated with this NPI, valid through September 19, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Four Corners Ob/Gyn accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Superior HealthPlan and Ambetter of Oklahoma list Four Corners Ob/Gyn as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Four Corners Ob/Gyn was last updated on July 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 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.