Corinne N. Jansen, MD
Gynecologic Oncology Physician · Walnut Creek, CA
Corinne N. Jansen, MD is a gynecologic oncology physician with a practice address in Walnut Creek, California, and NPI 1679065817, issued on Jun 4, 2018. Check the license (California 201468, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Corinne N. Jansen
- Credential
- MD
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- License numbers
- 201468 CA
MD18565 RI
Self-reported in NPPES; status is on the state search - Practice location
- 2637 Shadelands Dr, Walnut Creek, CA 94598
- Phone
- (925) 393-0033
- Enumerated
- Jun 4, 2018
- Record last updated
- Sep 26, 2025
- Fax
- (925) 301-8956
- Medicare enrollment
- Enrolled (PECOS I20250808002579); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gynecologic oncology physician records → All 176 in California → Look up another NPI →
Also registered at 2637 Shadelands Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anita Anand, NPFamily Nurse Practitioner1023993102
- Stacyann Andaya, NPFamily Nurse Practitioner1649893660
- Audrey Arzamendi, M.D.Endocrinology, Diabetes & Metabolism Physician1508159567
- Anthony Bernens, MDInternal Medicine Physician1215983440
- Jennifer Chan, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1265634687
- Heidi Chang, MDObstetrics & Gynecology Physician1649681982
Verify Corinne N. Jansen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 201468Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024
46 Medicare Part D claims for 21 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,165.46
4 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Alameda Health SystemOakland, CA
- Bass Medical GroupWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Corinne N. Jansen among 176 gynecologic oncology physician records in California
Corinne N. Jansen, MD is one of 176 gynecologic oncology physician records with a practice address in California. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 97% of them.
- NPI issued2018 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2018 · median 2004 among the 131 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecologic Oncology Physician providers in California
There are 176 gynecologic oncology physician records in California.
All 176 in California → Every provider in Walnut Creek → Gynecologic Oncology Physician nationwide →
The 8 gynecologic oncology physician records with the nearest ZIP codes
- Dimitry Lerner, M.D.Walnut Creek, CA 945981992965354
- Daniel Paik, MDWalnut Creek, CA 945981962673046
- Betty Suh-Burgmann, MDWalnut Creek, CA 945961881772960
- Giuseppe Ciaravino, MDOakland, CA 946111992883771
- Thomas Ewing, MDOakland, CA 946111376621177
- Liz Han, MDOakland, CA 946111699721498
- Isabel Lazo, M.D.Oakland, CA 946111992061113
- Lauren Montemorano, MDOakland, CA 946111891220844
Common questions
What is Corinne N. Jansen, MD's NPI number?
Corinne N. Jansen, MD's National Provider Identifier (NPI) is 1679065817, issued on Jun 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Corinne N. Jansen, MD located?
The NPPES record lists a practice address at 2637 Shadelands Dr, Walnut Creek, CA, 94598. Phone: (925) 393-0033. Providers update this record themselves, so call before visiting.
How can I verify Corinne N. Jansen, MD's license?
NPPES lists California license number 201468, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Corinne N. Jansen, MD prescribe under Medicare Part D?
In 2024, Corinne N. Jansen, MD had 46 Medicare Part D claims for 21 beneficiaries; the average among gynecologic oncology physician prescribers was 195. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.