NPPES file of Aug 9, 2026

Kristen Marxen Matsik, MD

Obstetrics & Gynecology Physician · Palo Alto, CA

Kristen Marxen Matsik, MD is an obstetrics & gynecology physician with a practice address in Palo Alto, California, and NPI 1295807022, issued on Nov 15, 2006. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295807022
Name
Kristen Marxen Matsik
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
85200 SC
Self-reported in NPPES; status is on the state search
Practice location
195 Page Mill RD Ste 103, Palo Alto, CA 94306
Phone
(888) 731-8994
Enumerated
Nov 15, 2006
Record last updated
Nov 6, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 195 Page Mill RD Ste 103

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Christine Ackerman, NPNurse Practitioner1659748747
  2. Kelsey Adams, MSN, R.N., F.N.P.Family Nurse Practitioner1295069516
  3. Ellen Allen, FNPNurse Practitioner1457059271
  4. Samantha Allnutt, FNP-CFamily Nurse Practitioner1487176046
  5. Katrina Armstrong, WHNPWomen's Health Nurse Practitioner1457975849
  6. Sonia Bajwa-DulaiInternal Medicine Physician1336429711

Verify Kristen Marxen Matsik in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Industry payments in 2024: $209.91

6 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kristen Matsik$209.91
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Kristen Marxen Matsik among 5,088 obstetrics & gynecology physician records in California

Kristen Marxen Matsik, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2025 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Emily Birenbaum, M.D.Palo Alto, CA 943061467619122
  2. Ruth Crystal, MDPalo Alto, CA 943061396792651
  3. Thomas Moran, M.D.Palo Alto, CA 943061093887069
  4. Kelly Banta, MDStanford, CA 943051811573819
  5. Kelly Darmawan, MDStanford, CA 943051225657778
  6. Florence Dibiase, MDStanford, CA 943051336709278
  7. George Hilaris, MDStanford, CA 943051972005627
  8. Gnendy Indig, MDStanford, CA 943051659958643

Common questions

What is Kristen Marxen Matsik, MD's NPI number?

Kristen Marxen Matsik, MD's National Provider Identifier (NPI) is 1295807022, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kristen Marxen Matsik, MD located?

The NPPES record lists a practice address at 195 Page Mill RD Ste 103, Palo Alto, CA, 94306. Phone: (888) 731-8994. Providers update this record themselves, so call before visiting.

How can I verify Kristen Marxen Matsik, MD's license?

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.

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.