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ROSEMARY JANSSEN BARNHART NP
NPI 1215820998
Nurse Practitioner - Acute Care in Chula Vista, CA

Active since May 31, 2025PECOS EnrolledAccepts Medicare Assignment
750 MEDICAL CENTER CT STE 6, CHULA VISTA, CA 91911(858) 278-8110 Get Directions Write a Review

NPPES record last updated: July 11, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 11, 2025, May 31, 2025 (2 updates tracked since 2025).

About Rosemary Janssen Barnhart Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROSEMARY JANSSEN BARNHART NP (NPI 1215820998) is an individual acute care provider in Chula Vista, California, licensed in California (95035720) and active in the NPI registry since May 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1215820998
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameROSEMARY JANSSEN BARNHARTCredential: NP
Location Address750 MEDICAL CENTER CT STE 6Chula Vista, CA 91911-6634
Mailing Address8270 Station Village Ln Apt 2703San Diego, CA 92108-6501 · (610) 733-1650
Phone(858) 278-8110
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateMay 31, 2025
Last NPPES UpdateJuly 11, 20252 updates tracked since enumeration
NPPES CertifiedJuly 11, 2025
✔ NPI 1215820998 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in CA · 95035720
Also ListedRegistered Nurse · Medical-SurgicalTaxonomy 163WM0705X · License 95337925 (CA)
750 MEDICAL CENTER CT STE 6, Chula Vista, CA 91911
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Rosemary Janssen Barnhart Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5395249783
PECOS Enrollment IDI20250918002467
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Rosemary Barnhart reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency And Acute Care Medical Corporation
15 mi
Emergency Medicine
7901 FROST ST
San Diego, CA 92123
  • Reassigned Medicare billing, California enrollment
  • 1,437 clinicians in this Medicare group
NPI 1437103942 (858) 939-3400
Joel J. Smith, M.D. Inc.
15 mi
Orthopaedic Surgery
3750 CONVOY STREET, SUITE 116
San Diego, CA 92111
  • Reassigned Medicare billing, California enrollment
  • 3 clinicians in this Medicare group
NPI 1376778530 (858) 278-8110

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91911 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rosemary Barnhart's NPI number?

The NPI number for Rosemary Barnhart is 1215820998. It was assigned to this individual provider in the NPPES registry on May 31, 2025.

Where is Rosemary Barnhart located?

Rosemary Barnhart practices at 750 Medical Center Ct Ste 6, Chula Vista, CA 91911. The listed phone number is (858) 278-8110.

What is Rosemary Barnhart's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Rosemary Barnhart enrolled in Medicare?

Yes. Rosemary Barnhart is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Rosemary Barnhart's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rosemary Barnhart reassigns Medicare benefits to 2 organizations: Emergency And Acute Care Medical Corporation (San Diego, CA) and Joel J. Smith, M.D. Inc. (San Diego, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rosemary Barnhart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Rosemary Barnhart was last updated on July 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.