MS. KIMBERLY DIONNE OJA NP
NPI 1396245064
Nurse Practitioner - Adult Health in Walnut Creek, CA

Active since February 19, 2018PECOS EnrolledAccepts Medicare Assignment
2637 SHADELANDS DR, WALNUT CREEK, CA 94598(925) 378-4517(925) 273-7255 Get Directions Write a Review

NPPES record last updated: August 18, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 28, 2025, Feb 6, 2020, Jun 16, 2018 and 1 more (4 updates tracked since 2018).

About Ms. Kimberly Dionne Oja Np NPPES

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

MS. KIMBERLY DIONNE OJA NP (NPI 1396245064) is an individual adult health provider in Walnut Creek, California, licensed in New Mexico (85124) and active in the NPI registry since February 2018. She is enrolled in Medicare PECOS, is affiliated with Christus St Vincent Regional Medical Center, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1396245064
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMS. KIMBERLY DIONNE OJACredential: NP
Location Address2637 SHADELANDS DRWalnut Creek, CA 94598-2512
Mailing Address2637 Shadelands DrWalnut Creek, CA 94598-2512 · (925) 378-4517 · Fax (925) 273-7255
Fax(925) 273-7255
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateFebruary 19, 2018
Last NPPES UpdateAugust 18, 20254 updates tracked since enumeration
NPPES CertifiedAugust 18, 2025
NPI 1396245064 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License Licensed in NM · 85124
2637 SHADELANDS DR, Walnut Creek, CA 94598

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Ms. Kimberly Dionne Oja Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2668805177
PECOS Enrollment IDI20260106003384
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus St Vincent Regional Medical Center

Acute Care Hospitals · Santa Fe, NM
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number320002
Location455 St Michael's DriveSanta Fe, NM 87505 · Santa Fe County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Thoracic Surgery (Cardiothoracic Vascular Surgery)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Internal Medicine (Gastroenterology)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Physician Assistant
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Clinic/Center (Magnetic Resonance Imaging (MRI))
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Obstetrics & Gynecology
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Nurse Practitioner (Family)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Internal Medicine (Pulmonary Disease)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Podiatrist (Foot & Ankle Surgery)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598

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 Kimberly Oja's NPI number?

The NPI number for Kimberly Oja is 1396245064. It was assigned to this individual provider in the NPPES registry on February 19, 2018.

Where is Kimberly Oja located?

Kimberly Oja practices at 2637 Shadelands Dr, Walnut Creek, CA 94598. The listed phone number is (925) 378-4517.

What is Kimberly Oja's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Kimberly Oja enrolled in Medicare?

Yes. Kimberly Oja is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Kimberly Oja affiliated with any hospitals?

According to CMS data, Kimberly Oja is affiliated with Christus St Vincent Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Kimberly Oja was last updated on August 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.