NPPES file of Aug 9, 2026

Courtney F. Sepic, N.P.

Nurse Practitioner · Danville, CA

Courtney F. Sepic, N.P. is a nurse practitioner with a practice address in Danville, California, and NPI 1245222058, issued on Aug 17, 2005. Check the license 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
1245222058
Name
Courtney F. Sepic
Credential
N.P.
Primary taxonomy
Nurse Practitioner 363L00000X
License number
229614 MA
Self-reported in NPPES; status is on the state search
Practice location
4165 Blackhawk Plaza Cir, Danville, CA 94506
Phone
(925) 736-7070
Enumerated
Aug 17, 2005
Record last updated
Dec 22, 2015 (not updated in 11 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 4165 Blackhawk Plaza Cir

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

  1. Jillian Barrett, PH.D.Audiologist-Hearing Aid Fitter1811906191
  2. Melody BenzelOrthopedic Physical Therapist1336543792
  3. Joseph Berdal, P.T.Physical Therapist1952412298
  4. Elizabeth Buselli, NPAdult Health Nurse Practitioner1457442089
  5. Christine Chang, M.D.Internal Medicine Physician1770696056
  6. Chester Cheng, M.D.Plastic and Reconstructive Surgery Physician1497892640

Verify Courtney F. Sepic in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average nurse practitioner in 2024

73 Medicare Part D claims for 32 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Courtney Sepic73
  2. Specialty average1,109

Most prescribed

  1. Estradiol29 claims
  2. Valacyclovir11 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.

Industry payments in 2024: $548.55

25 payments; by number, the most common kind was food and beverage; the largest payer was Biogen, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Courtney Sepic$548.55
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Courtney F. Sepic among 8,223 nurse practitioner records in California

Courtney F. Sepic, N.P. is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 42% of these records are
  • Record last updated2015 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Mary Walsh, FNPSan Pablo, CA 945051992288716
  2. Morgan Gilliland, NPAntioch, CA 945091922664085
  3. Zahra Hamidi, NPAntioch, CA 945091437771680
  4. Preetkamal HansAmerican Canyon, CA 945031982413605
  5. Manjinder KaurAntioch, CA 945091649197997
  6. Mandeep Singh, NURSE PRACTITIONERAmerican Canyon, CA 945031861043788
  7. Debbie Slack-Gay, NURSE PRACTITIONERAntioch, CA 945091073920260
  8. Jean Unajan, NURSE PRACTITIONERAmerican Canyon, CA 945031871860007

Common questions

What is Courtney F. Sepic, N.P.'s NPI number?

Courtney F. Sepic, N.P.'s National Provider Identifier (NPI) is 1245222058, issued on Aug 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Courtney F. Sepic, N.P. located?

The NPPES record lists a practice address at 4165 Blackhawk Plaza Cir, Danville, CA, 94506. Phone: (925) 736-7070. Providers update this record themselves, so call before visiting.

How can I verify Courtney F. Sepic, N.P.'s license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Courtney F. Sepic, N.P. prescribe under Medicare Part D?

In 2024, Courtney F. Sepic, N.P. had 73 Medicare Part D claims for 32 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.