NPPES file of Aug 9, 2026

Rosemary Janssen Barnhart, NP

Acute Care Nurse Practitioner · Chula Vista, CA

Rosemary Janssen Barnhart, NP is an acute care nurse practitioner with a practice address in Chula Vista, California, and NPI 1215820998, issued on May 31, 2025. Check the license (California 95035720, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215820998
Name
Rosemary Janssen Barnhart
Credential
NP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License numbers
95035720 CA
95337925 CA
Self-reported in NPPES; status is on the state search
Practice location
750 Medical Center CT Ste 6, Chula Vista, CA 91911
Phone
(858) 278-8110
Enumerated
May 31, 2025
Record last updated
Jul 11, 2025
Medicare enrollment
Enrolled (PECOS I20250918002467); 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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8 nearest acute care nurse practitioner records → All 1,810 in California → Look up another NPI →

Verify Rosemary Janssen Barnhart 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 95035720    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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Bills Medicare through one group practice

  1. Joel J. Smith, M.D. Inc.San Diego, CA

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

Rosemary Janssen Barnhart among 1,810 acute care nurse practitioner records in California

Rosemary Janssen Barnhart, NP is one of 1,810 acute care nurse practitioner 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 2025, is newer than 90% of them.

  • NPI issued2025 · 90% of these records are older, 4% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2025 · median 2018 among the 993 with a school on file
  • Record last updated2025 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in California

There are 1,810 acute care nurse practitioner records in California.

All 1,810 in California → Every provider in Chula Vista → Acute Care Nurse Practitioner nationwide →

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Charles BrownChula Vista, CA 919111053762005
  2. Deena Drake, CNS, AGACNP-BCChula Vista, CA 919111427865765
  3. Maria Angelica Justo, AGACNPChula Vista, CA 919111992348205
  4. Brittany Kelly, NPChula Vista, CA 919111649858325
  5. Jared Lumanauw-FordChula Vista, CA 919101851026041
  6. Brandon May, DNP, AGACNP/FNPChula Vista, CA 919101659090744
  7. Kevin Sablich, NPChula Vista, CA 919101669279691
  8. Michael BautistaChula Vista, CA 919151659210656

Common questions

What is Rosemary Janssen Barnhart, NP's NPI number?

Rosemary Janssen Barnhart, NP's National Provider Identifier (NPI) is 1215820998, issued on May 31, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Rosemary Janssen Barnhart, NP located?

The NPPES record lists a practice address at 750 Medical Center CT Ste 6, Chula Vista, CA, 91911. Phone: (858) 278-8110. Providers update this record themselves, so call before visiting.

How can I verify Rosemary Janssen Barnhart, NP's license?

NPPES lists California license number 95035720, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.