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CORINNE N JANSEN MD
NPI 1679065817
Obstetrics & Gynecology - Gynecologic Oncology in Walnut Creek, CA

Active since June 04, 2018PECOS EnrolledAccepts Medicare Assignment
2637 SHADELANDS DR, WALNUT CREEK, CA 94598(925) 393-0033(925) 301-8956 Get Directions Write a Review

NPPES record last updated: September 26, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Corinne N Jansen Md NPPES

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

CORINNE N JANSEN MD (NPI 1679065817) is an individual gynecologic oncology provider in Walnut Creek, California, licensed in California (201468) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1679065817
Entity TypeIndividualFemale
Primary Taxonomy207VX0201X
Provider Legal NameCORINNE N JANSENCredential: MD
Location Address2637 SHADELANDS DRWalnut Creek, CA 94598-2512
Mailing Address2637 Shadelands DrWalnut Creek, CA 94598-2512 · (929) 393-0033 · Fax (925) 301-8956
Phone(925) 393-0033
Fax(925) 301-8956
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateJune 4, 2018
Last NPPES UpdateSeptember 26, 2025
NPPES CertifiedSeptember 26, 2025
✔ NPI 1679065817 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
License✔ Licensed in CA · 201468
Definition
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License MD18565 (RI), 00000 (MA)
2637 SHADELANDS DR, Walnut Creek, CA 94598
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Corinne N Jansen Md 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 ID7911253638
PECOS Enrollment IDI20250808002579
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Corinne Jansen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bass Medical Group
Same address
Specialist
2637 SHADELANDS DR
Walnut Creek, CA 94598
  • Reassigned Medicare billing, California enrollment
  • 347 clinicians in this Medicare group
NPI 1154401941 (925) 932-6330
Alameda Health System
14 mi
Federally Qualified Health Center (FQHC)
6955 FOOTHILL BLVD STE 200
Oakland, CA 94605
  • Reassigned Medicare billing, California enrollment
  • 900 clinicians in this Medicare group
NPI 1932300738 (510) 567-5704

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

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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
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.

MICHAELA STRAZNICKA M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 932-6330
DR. CYNTHIA M. MULLEN M.D.
Internal Medicine (Gastroenterology)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 322-2372
JULIA ALEXA ONDARZA PA-C
Physician Assistant
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 430-5335
BAY AREA SURGICAL SPECIALISTS INC A MEDICAL CORPORATION
Clinic/Center (Magnetic Resonance Imaging (MRI))
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 329-3710
SRUTHI SAKAMURI MD
Obstetrics & Gynecology
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 945-6600
ANITA ANAND NP
Nurse Practitioner (Family)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 944-0166
DR. MANJARI NATHAN M.D.
Internal Medicine (Pulmonary Disease)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 944-0166
DR. ALI KHAVARI DPM
Podiatrist (Foot & Ankle Surgery)
2637 SHADELANDS DR
WALNUT CREEK, CA 94598
Contra Costa County (925) 464-1982

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 Corinne Jansen's NPI number?

The NPI number for Corinne Jansen is 1679065817. It was assigned to this individual provider in the NPPES registry on June 4, 2018.

Where is Corinne Jansen located?

Corinne Jansen practices at 2637 Shadelands Dr, Walnut Creek, CA 94598. The listed phone number is (925) 393-0033.

What is Corinne Jansen's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Corinne Jansen enrolled in Medicare?

Yes. Corinne Jansen 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.

Which organizations bill Medicare for Corinne Jansen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Corinne Jansen reassigns Medicare benefits to 2 organizations: Bass Medical Group (Walnut Creek, CA) and Alameda Health System (Oakland, CA). Each 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 Corinne Jansen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Corinne Jansen was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.