NPPES file of Aug 9, 2026

Jessica Ambrose Sebastian, FNP-BC

Family Nurse Practitioner · Los Angeles, CA

Jessica Ambrose Sebastian, FNP-BC is a family nurse practitioner with a practice address in Los Angeles, California, and NPI 1851989990, issued on Jan 5, 2021. Check the license (California 95018024, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851989990
Name
Jessica Ambrose Sebastian
Credential
FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
95018024 CA
1010846 TX
Self-reported in NPPES; status is on the state search
Practice location
808 W 58TH St, Los Angeles, CA 90037
Phone
(323) 541-1400
Enumerated
Jan 5, 2021
Record last updated
Aug 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20211111002742); 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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Also registered at 808 W 58TH St

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

  1. Drew Ales-Pichugin, NPNurse Practitioner1932957826
  2. Heather AlexanderCounselor1295434322
  3. Ashley AlvarezNurse Practitioner1558005116
  4. Justin Amador, FNPFamily Nurse Practitioner1760772321
  5. Ivan AndradeMarriage & Family Therapist1811586894
  6. Zoe ArmasFamily Nurse Practitioner1316459274

Verify Jessica Ambrose Sebastian 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 95018024
    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

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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37% fewer Medicare Part D claims than the average family nurse practitioner in 2024

825 Medicare Part D claims for 99 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Jessica Sebastian825
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium61 claims
  2. Amlodipine Besylate53 claims
  3. Lisinopril48 claims
  4. Metformin Hcl45 claims
  5. Januvia29 claims
  6. Simvastatin28 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.

Bills Medicare through one group practice

  1. St. John's Community HealthCompton, CA

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

Jessica Ambrose Sebastian among 16,966 family nurse practitioner records in California

Jessica Ambrose Sebastian, FNP-BC is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 62% of them.

  • NPI issued2021 · 62% of these records are older, 32% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2019 · median 2019 among the 6,793 with a school on file
  • Record last updated2021 · 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 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,103 family nurse practitioner records list a practice address in Los Angeles

They are 1,103 of the 69,537 NPPES records with a practice address in Los Angeles, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Justin Amador, FNPLos Angeles, CA 900371760772321
  2. Selene Artry, NPLos Angeles, CA 900371386849347
  3. Angela Burrell, FNPLos Angeles, CA 900371417394875
  4. Keisha Conwright, FNPLos Angeles, CA 900371043600588
  5. Lenora Ford-Watson, F.N.P.Los Angeles, CA 900371356428692
  6. Rachel Jones, NPLos Angeles, CA 900371629382296
  7. Hsin-Ying LinLos Angeles, CA 900371568842706
  8. Maria Theresa Manalese, RN, FNP-CLos Angeles, CA 900371912352568

Common questions

What is Jessica Ambrose Sebastian, FNP-BC's NPI number?

Jessica Ambrose Sebastian, FNP-BC's National Provider Identifier (NPI) is 1851989990, issued on Jan 5, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Ambrose Sebastian, FNP-BC located?

The NPPES record lists a practice address at 808 W 58TH St, Los Angeles, CA, 90037. Phone: (323) 541-1400. Providers update this record themselves, so call before visiting.

How can I verify Jessica Ambrose Sebastian, FNP-BC's license?

NPPES lists California license number 95018024, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Jessica Ambrose Sebastian, FNP-BC prescribe under Medicare Part D?

In 2024, Jessica Ambrose Sebastian, FNP-BC had 825 Medicare Part D claims for 99 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.