NPPES file of Aug 9, 2026

Chelsea Sarah Vaughn, RN

Registered Nurse · San Carlos, CA

Chelsea Sarah Vaughn, RN is a registered nurse with a practice address in San Carlos, California, and NPI 1679709141, issued on Jun 10, 2009. Check the license (California 748490, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679709141
Name
Chelsea Sarah Vaughn
Credential
RN
Primary taxonomy
Registered Nurse 163W00000X
License number
748490 CA
Self-reported in NPPES; status is on the state search
Practice location
1296 Laurel St, San Carlos, CA 94070
Phone
(650) 631-4431
Enumerated
Jun 10, 2009
Record last updated
Jun 10, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220405000954); accepts Medicare assignment
Medical or professional school
Yale University School Of Medicine, 2009
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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Verify Chelsea Sarah Vaughn 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 748490
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 82.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.6
  2. Costout of 100 · 30%30.8
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Sutter Bay HospitalsSan Francisco, CA

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

Chelsea Sarah Vaughn among 13,506 registered nurse records in California

Chelsea Sarah Vaughn, RN is one of 13,506 registered nurse records with a practice address in California. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 14% of them.

  • NPI issued2009 · 14% of these records are older, 84% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 1% of these records are
  • Graduated2009 · median 2018 among the 146 with a school on file
  • Record last updated2009 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Nurse providers in California

There are 13,506 registered nurse records in California.

The 8 registered nurse records with the nearest ZIP codes

  1. Girlie De Leon, NPSan Carlos, CA 940701831909241
  2. Allison Bettner, RN, PHNSan Bruno, CA 940661144163965
  3. Luke CamarilloSan Bruno, CA 940661306266655
  4. Karen Kieras, RNSan Bruno, CA 940661649995770
  5. Marianne Nagle McDonald, REGISTERED NURSESan Bruno, CA 940661497607204
  6. Sahodra PrasadSan Bruno, CA 940661750793162
  7. Emily Risk, RNSan Bruno, CA 940661750169751
  8. Kathy Aboubakare, RNRedwood City, CA 940651326922642

Common questions

What is Chelsea Sarah Vaughn, RN's NPI number?

Chelsea Sarah Vaughn, RN's National Provider Identifier (NPI) is 1679709141, issued on Jun 10, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Chelsea Sarah Vaughn, RN located?

The NPPES record lists a practice address at 1296 Laurel St, San Carlos, CA, 94070. Phone: (650) 631-4431. Providers update this record themselves, so call before visiting.

How can I verify Chelsea Sarah Vaughn, RN's license?

NPPES lists California license number 748490, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

What is Chelsea Sarah Vaughn, RN's MIPS final score?

The 2023 MIPS final score is 82.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.