NPPES file of Aug 9, 2026

Kathleen A. Chase, DO

Family Medicine Physician · Marina, CA

Kathleen A. Chase, DO is a family medicine physician with a practice address in Marina, California, and NPI 1407004591, issued on Sep 3, 2008. Check the license (California 20A18566, as entered in NPPES) 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
1407004591
Name
Kathleen A. Chase
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
20A18566 CA
47853 CO
OS10174 FL
Self-reported in NPPES; status is on the state search
Practice location
2930 2ND Ave Ste 200, Marina, CA 93933
Phone
(831) 582-2100
Enumerated
Sep 3, 2008
Record last updated
Nov 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(831) 886-1529
Medicaid ID
68587244 CO
Medicare enrollment
Enrolled (PECOS I20201119001796); accepts Medicare assignment
Medical or professional school
Touro Un College Of Osteopathic Medicine, Vallejo, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2930 2ND Ave Ste 200

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

  1. Jean-Philippe Abraham, MDFamily Medicine Physician1427463140
  2. Derrick Barnes, M.D.Obstetrics & Gynecology Physician1336236488
  3. Mary ChickFamily Medicine Physician1285194183
  4. Marcus De Ranieri, DOFamily Medicine Physician1891351615
  5. Shirley Dickinson, M.D.Family Medicine Physician1679500565
  6. Angelika Drake, NPFamily Nurse Practitioner1376369876

Verify Kathleen A. Chase in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A18566
    Check 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.

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72% fewer Medicare Part D claims than the average family medicine physician in 2024

976 Medicare Part D claims for 95 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Kathleen Chase976
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium63 claims
  2. Losartan Potassium58 claims
  3. Levothyroxine Sodium57 claims
  4. Metformin Hcl34 claims
  5. Simvastatin32 claims
  6. Lisinopril31 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: $26.80

1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Chase$26.80
  2. Specialty average$902.55

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

Bills Medicare through one group practice

  1. Montage Medical GroupMarina, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kathleen A. Chase among 17,133 family medicine physician records in California

Kathleen A. Chase, DO is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2006 · median 2005 among the 10,652 with a school on file
  • Record last updated2020 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 family medicine physician records list a practice address in Marina

They are 17 of the 440 NPPES records with a practice address in Marina, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Jean-Philippe Abraham, MDMarina, CA 939331427463140
  2. Deborah Brown, M.D.Marina, CA 939331376546044
  3. Lellivi Carmen, MDMarina, CA 939331841465648
  4. Nancy Chang, M.D.Marina, CA 939331336157478
  5. Amy Cornell, D.OMarina, CA 939331447591268
  6. Jessica Craig, MDMarina, CA 939331003988759
  7. Shelly Dawson, MDMarina, CA 939331619068103
  8. Shirley Dickinson, M.D.Marina, CA 939331679500565

Common questions

What is Kathleen A. Chase, DO's NPI number?

Kathleen A. Chase, DO's National Provider Identifier (NPI) is 1407004591, issued on Sep 3, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen A. Chase, DO located?

The NPPES record lists a practice address at 2930 2ND Ave Ste 200, Marina, CA, 93933. Phone: (831) 582-2100. Providers update this record themselves, so call before visiting.

How can I verify Kathleen A. Chase, DO's license?

NPPES lists California license number 20A18566, 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 Kathleen A. Chase, DO prescribe under Medicare Part D?

In 2024, Kathleen A. Chase, DO had 976 Medicare Part D claims for 95 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.