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COURTNEY F SEPIC N.P.
NPI 1245222058
Nurse Practitioner in Danville, CA

Active since August 17, 2005PECOS Enrolled
4165 BLACKHAWK PLAZA CIR, SUITE 100, DANVILLE, CA 94506(925) 736-7070 Get Directions Write a Review

NPPES record last updated: December 22, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 22, 2015, Dec 16, 2015 (2 updates tracked since 2015).

About Courtney F Sepic N.p. NPPES

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

COURTNEY F SEPIC N.P. (NPI 1245222058) is an individual nurse practitioner in Danville, California, licensed in Massachusetts (229614) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1245222058
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameCOURTNEY F SEPICCredential: N.P.
Location Address4165 BLACKHAWK PLAZA CIR, SUITE 100Danville, CA 94506-4904
Mailing Address4165 Blackhawk Plaza Cir 100Danville, CA 94506-4691 · (925) 736-7070 · Fax (925) 736-7075
Phone(925) 736-7070
Sole ProprietorNo
Enumeration DateAugust 17, 2005
Last NPPES UpdateDecember 22, 20152 updates tracked since enumeration
✔ NPI 1245222058 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MA · 229614
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
4165 BLACKHAWK PLAZA CIR, Danville, CA 94506
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Other Names 1

Former Name (1)Courtney J Finnegan

Other Identifiers 2

Medicare ID-Type UnspecifiedNP3259MA
Medicare UPINP32924MA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Courtney F Sepic N.p. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Courtney Sepic reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Bass Medical Group
10 mi
Orthopaedic Surgery
390 N WIGET LN STE 100
Walnut Creek, CA 94598
  • Reassigned Medicare billing, California enrollment
  • 347 clinicians in this Medicare group
NPI 1043616600 (925) 944-0110

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 94506 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MICHAEL J SCHIERMAN MD A PROFESSIONAL CORPORATION
Family Medicine
4165 BLACKHAWK PLAZA CIR, SUITE 265
DANVILLE, CA 94506
Contra Costa County (925) 648-7140
BODYMAX PHYSICAL THERAPY, INC.
Physical Therapist
4165 BLACKHAWK PLAZA CIR, #275
DANVILLE, CA 94506
Contra Costa County (925) 736-1305
PAMELA MCDONALD W.H.N.P., A.N.P.
Nurse Practitioner (Women's Health)
4165 BLACKHAWK PLAZA CIR, # 100
DANVILLE, CA 94506
Contra Costa County (925) 736-7070
JULIE A LAGUARDIA F.N.P.
Nurse Practitioner (Family)
4165 BLACKHAWK PLAZA CIR, # 100
DANVILLE, CA 94506
Contra Costa County (925) 736-7070
DR. DENISE O'RIORDAN M.D.
Pediatrics
4165 BLACKHAWK PLAZA CIR, SUITE #100
DANVILLE, CA 94506
Contra Costa County (925) 736-7070
PENSCOTT MEDICAL CORPORATION
Family Medicine
4165 BLACKHAWK PLAZA CIR, #250
DANVILLE, CA 94506
Contra Costa County (925) 736-8510
MELODY BENZEL
Physical Therapist (Orthopedic)
4165 BLACKHAWK PLAZA CIR, #275
DANVILLE, CA 94506
Contra Costa County (925) 736-1305
DR. RICHARD JOHN KOELTL JR. D.D.S.
Dentist (General Practice)
4165 BLACKHAWK PLAZA CIR, SUITE 200
DANVILLE, CA 94506
Contra Costa County (925) 736-4201

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 Courtney Sepic's NPI number?

The NPI number for Courtney Sepic is 1245222058. It was assigned to this individual provider in the NPPES registry on August 17, 2005. The provider is also known as Courtney J Finnegan.

Where is Courtney Sepic located?

Courtney Sepic practices at 4165 Blackhawk Plaza Cir Suite 100, Danville, CA 94506. The listed phone number is (925) 736-7070.

What is Courtney Sepic's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Courtney Sepic enrolled in Medicare?

Yes. Courtney Sepic is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Courtney Sepic's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Courtney Sepic reassigns Medicare benefits to Bass Medical Group (Walnut Creek, CA). The 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 Courtney Sepic'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 Courtney Sepic was last updated on December 22, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.