NPPES file of Aug 9, 2026

Margaret Nancy Martini, FNP-C

Family Nurse Practitioner · Callahan, FL

Margaret Nancy Martini, FNP-C is a family nurse practitioner with a practice address in Callahan, Florida, and NPI 1689437576, issued on Feb 2, 2024. Check the license (Florida APRN11035265, as entered in NPPES) on the Florida health license search; 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
1689437576
Name
Margaret Nancy Martini
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
APRN11035265 FL
Self-reported in NPPES; status is on the state search
Practice location
542325 US Highway 1, Callahan, FL 32011
Phone
(904) 879-4233
Enumerated
Feb 2, 2024
Record last updated
Oct 15, 2024
Medicare enrollment
Enrolled (PECOS I20241127002958); 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 542325 US Highway 1

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

  1. Faith Adams, APRNFamily Nurse Practitioner1013287762
  2. Melissa Cannon, APRN FNP-CFamily Nurse Practitioner1417601709
  3. Madison ClaytonPharmacist1255934790
  4. Donald FarinellaPharmacist1508690314
  5. Robert Gentry, PHARMDPharmacist1780366849
  6. Heather Kirk, APRN, FNP-CFamily Nurse Practitioner1184592909

Verify Margaret Nancy Martini in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license APRN11035265    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
Open the Florida 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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99% fewer Medicare Part D claims than the average family nurse practitioner in 2024

19 Medicare Part D claims for 15 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Margaret Martini19
  2. Specialty average1,305

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. Minuteclinic LLCCallahan, FL

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

16 family nurse practitioner records list a practice address in Callahan

They are 16 of the 98 NPPES records with a practice address in Callahan, and 22,340 family nurse practitioner records in Florida.

All 16 in Callahan → All 22,340 in Florida → Every provider in Callahan →

Other family nurse practitioner records in Florida

  1. Mary Aanestad, A.R.N.P.Pensacola, FL1396096244
  2. Shannon Aaron, APRNPensacola, FL1851153951
  3. Evelyn Abadin QuintanaMiami, FL1134601511
  4. Abel Aballe MosquedaBonita Springs, FL1750097465
  5. Marjorie Abanador, ARNPWinter Park, FL1396228342
  6. Mona Abankwa, APNOrlando, FL1902184138
  7. Leslie Abascal, ARNP-CMiami, FL1033511399
  8. Marta Abascal Cabrera, ARNPMiami Lakes, FL1912480146
  9. Syed Abbas-RodriguezTampa, FL1699295667
  10. Judith AbbeyOrange Park, FL1659076081

Common questions

What is Margaret Nancy Martini, FNP-C's NPI number?

Margaret Nancy Martini, FNP-C's National Provider Identifier (NPI) is 1689437576, issued on Feb 2, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Nancy Martini, FNP-C located?

The NPPES record lists a practice address at 542325 US Highway 1, Callahan, FL, 32011. Phone: (904) 879-4233. Providers update this record themselves, so call before visiting.

How can I verify Margaret Nancy Martini, FNP-C's license?

NPPES lists Florida license number APRN11035265, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Margaret Nancy Martini, FNP-C prescribe under Medicare Part D?

In 2024, Margaret Nancy Martini, FNP-C had 19 Medicare Part D claims for 15 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.