NPPES file of Aug 9, 2026

Marianne Plakas, FNP

Family Nurse Practitioner · Sylmar, CA

Marianne Plakas, FNP is a family nurse practitioner with a practice address in Sylmar, California, and NPI 1942503701, issued on Dec 16, 2010. Check the license (California 20420, 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
1942503701
Name
Marianne Plakas
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
20420 CA
Self-reported in NPPES; status is on the state search
Practice location
14124 Foothill Blvd Ste 100, Sylmar, CA 91342
Phone
(818) 367-1012
Enumerated
Dec 16, 2010
Record last updated
Dec 16, 2010 (not updated in 16 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 14124 Foothill Blvd Ste 100

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

  1. Alexan Abdel-Malek, MDPhysical Medicine & Rehabilitation Physician1457410060
  2. Luis Artavia, M.D.Family Medicine Physician1407885577
  3. Michel Mikhael, M.D.General Practice Physician1902951460

Verify Marianne Plakas 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 20420    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

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4.2 times the Medicare Part D claims of the average family nurse practitioner in 2024

5,484 Medicare Part D claims for 529 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 213 claims were for opioids.

  1. Marianne Plakas5,484
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium314 claims
  2. Amlodipine Besylate171 claims
  3. Pantoprazole Sodium149 claims
  4. Lisinopril143 claims
  5. Gabapentin138 claims
  6. Fluticasone Propionate118 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.

32 family nurse practitioner records list a practice address in Sylmar

They are 32 of the 1,454 NPPES records with a practice address in Sylmar, and 16,966 family nurse practitioner records in California.

All 32 in Sylmar → All 16,966 in California → Every provider in Sylmar →

Other family nurse practitioner records in California

  1. Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
  2. Joshua AaronMission Hills, CA1477291805
  3. Orly Aaron, NPSan Francisco, CA1376912451
  4. Paris Gilbert Russ AaronSacramento, CA1871079111
  5. Tiffanne Aaronsen, FNPIndio, CA1568191807
  6. Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
  7. Frances Abad, FNPLos Angeles, CA1053504514
  8. Nnenna AbaezeLong Beach, CA1457820763
  9. Raymond Abagat, FNPTorrance, CA1306685821
  10. Ashley AbalCastaic, CA1740140698

Common questions

What is Marianne Plakas, FNP's NPI number?

Marianne Plakas, FNP's National Provider Identifier (NPI) is 1942503701, issued on Dec 16, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Marianne Plakas, FNP located?

The NPPES record lists a practice address at 14124 Foothill Blvd Ste 100, Sylmar, CA, 91342. Phone: (818) 367-1012. Providers update this record themselves, so call before visiting.

How can I verify Marianne Plakas, FNP's license?

NPPES lists California license number 20420, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Marianne Plakas, FNP prescribe under Medicare Part D?

In 2024, Marianne Plakas, FNP had 5,484 Medicare Part D claims for 529 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.