NPPES file of Aug 9, 2026

Shannon Baker, FNP

Family Nurse Practitioner · San Marcos, CA

Shannon Baker, FNP is a family nurse practitioner with a practice address in San Marcos, California, and NPI 1518191014, issued on May 12, 2009. Check the license (California 95016279, 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
1518191014
Name
Shannon Baker
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95016279 CA
Self-reported in NPPES; status is on the state search
Practice location
1595 Grand Ave Ste 100, San Marcos, CA 92078
Phone
(760) 306-1900
Enumerated
May 12, 2009
Record last updated
Aug 25, 2025
Medicare enrollment
Enrolled (PECOS I20180409000157); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2009
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 1595 Grand Ave Ste 100

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

  1. Barbara Carra, DACM, L.AC.Acupuncturist1588173629
  2. Mabelle McKahan, LCSWClinical Social Worker1255993127

Verify Shannon Baker 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 95016279
    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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87% more Medicare Part D claims than the average family nurse practitioner in 2024

2,436 Medicare Part D claims for 270 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 60 claims were for opioids.

  1. Shannon Baker2,436
  2. Specialty average1,305

Most prescribed

  1. Amlodipine Besylate146 claims
  2. Atorvastatin Calcium137 claims
  3. Lisinopril112 claims
  4. Losartan Potassium85 claims
  5. Levothyroxine Sodium67 claims
  6. Metformin Hcl63 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. North County Health Project, Inc.San Marcos, CA

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

Shannon Baker among 16,966 family nurse practitioner records in California

Shannon Baker, FNP 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 2009, is newer than 15% of them.

  • NPI issued2009 · 15% of these records are older, 83% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2009 · median 2019 among the 6,793 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 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

45 family nurse practitioner records list a practice address in San Marcos

They are 45 of the 1,985 NPPES records with a practice address in San Marcos, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Loribette Antonio, F.N.P.San Marcos, CA 920781467882910
  2. Cecily Arenas, FNPSan Marcos, CA 920781700031507
  3. Caitlin Brickman, NP-CSan Marcos, CA 920781902188303
  4. Jackie Do, FNPSan Marcos, CA 920781356925283
  5. Jill Elsdon, FNPSan Marcos, CA 920781346327020
  6. Natassia Francis, FNP, MSN, RN, PHNSan Marcos, CA 920781407547318
  7. Kelly Halloran, MN,RNC,FNP,DNCSan Marcos, CA 920781851418206
  8. Cheryl Jucksch, FNP-BCSan Marcos, CA 920781952538993

Common questions

What is Shannon Baker, FNP's NPI number?

Shannon Baker, FNP's National Provider Identifier (NPI) is 1518191014, issued on May 12, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Shannon Baker, FNP located?

The NPPES record lists a practice address at 1595 Grand Ave Ste 100, San Marcos, CA, 92078. Phone: (760) 306-1900. Providers update this record themselves, so call before visiting.

How can I verify Shannon Baker, FNP's license?

NPPES lists California license number 95016279, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Shannon Baker, FNP prescribe under Medicare Part D?

In 2024, Shannon Baker, FNP had 2,436 Medicare Part D claims for 270 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.