NPPES file of Aug 9, 2026

Carolyn Ruth Chase, RN, NP

Family Nurse Practitioner · Point Reyes Station, CA

Carolyn Ruth Chase, RN, NP is a family nurse practitioner with a practice address in Point Reyes Station, California, and NPI 1811024599, issued on Feb 28, 2007. Check the license (California 9465, as entered in NPPES) with the California board that licenses this profession; 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
1811024599
Name
Carolyn Ruth Chase
Credential
RN, NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
9465 CA
515250 CA
Self-reported in NPPES; status is on the state search
Practice location
3 Sixth St., Point Reyes Station, CA 94956
Phone
(707) 559-7500
Enumerated
Feb 28, 2007
Record last updated
Dec 4, 2024
Fax
(707) 559-7707
Medicare enrollment
Enrolled (PECOS I20110314000263); accepts Medicare assignment
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 3 Sixth St.

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

  1. Tracy Krinard, DOFamily Medicine Physician1902300452
  2. Kelsey PhelpsFamily Medicine Physician1336405083
  3. Diane Wrona, PACPhysician Assistant1538112479

Verify Carolyn Ruth Chase in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 9465
    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
Find the California license search

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32% more Medicare Part D claims than the average family nurse practitioner in 2024

1,717 Medicare Part D claims for 190 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 97 claims were for opioids.

  1. Carolyn Chase1,717
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium122 claims
  2. Levothyroxine Sodium57 claims
  3. Lisinopril54 claims
  4. Losartan Potassium50 claims
  5. Gabapentin49 claims
  6. Amlodipine Besylate44 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.

Bills Medicare through 2 group practices

  1. Coastal Health AlliancePoint Reyes Station, CA
  2. Petaluma Health Center IncPetaluma, CA

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

4 family nurse practitioner records list a practice address in Point Reyes Station

They are 4 of the 38 NPPES records with a practice address in Point Reyes Station, and 16,966 family nurse practitioner records in California.

Other family nurse practitioner records in California

  1. Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
  2. Joshua AaronMission Hills, CA1477291805
  3. Orly Aaron, NPSan Francisco, CA1376912451
  4. Paris Gilbert Russ AaronSacramento, CA1871079111
  5. Tiffanne Aaronsen, FNPIndio, CA1568191807
  6. Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
  7. Frances Abad, FNPLos Angeles, CA1053504514
  8. Nnenna AbaezeLong Beach, CA1457820763
  9. Raymond Abagat, FNPTorrance, CA1306685821
  10. Ashley AbalCastaic, CA1740140698

Common questions

What is Carolyn Ruth Chase, RN, NP's NPI number?

Carolyn Ruth Chase, RN, NP's National Provider Identifier (NPI) is 1811024599, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn Ruth Chase, RN, NP located?

The NPPES record lists a practice address at 3 Sixth St., Point Reyes Station, CA, 94956. Phone: (707) 559-7500. Providers update this record themselves, so call before visiting.

How can I verify Carolyn Ruth Chase, RN, NP's license?

NPPES lists California license number 9465, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Carolyn Ruth Chase, RN, NP prescribe under Medicare Part D?

In 2024, Carolyn Ruth Chase, RN, NP had 1,717 Medicare Part D claims for 190 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.