MARILYN F.M. JOHNSTON (M.D.) – Clinical Pathology/Laboratory Medicine Physician, NPI 1538141668

MARILYN F.M. JOHNSTON (M.D.) is a healthcare provider. based in Orlando, Florida. specializing in Clinical Pathology/Laboratory Medicine Physician. They hold the professional credentials M.D.. They hold a License No. R7131 (MO). The NPI Number for MARILYN F.M. JOHNSTON (M.D.) is 1538141668

Main info

Female
Name
MARILYN F.M. JOHNSTON (M.D.)
NPI
1538141668
Phone
(407) 422-9831
Address
PO BOX 144333
Enumeration Date
15 November 2005
Last Update Date
20 April 2008
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for MARILYN F.M. JOHNSTON (M.D.)

  • Pop in a Box, 800, Avenida Presidente Juscelino Kubitscheck de Oliveira, Jardim Panorama, São José do Rio Preto, Região Imediata de São José do Rio Preto, Região Geográfica Intermediária de São José do Rio Preto, São Paulo, Southeast Region, 15092-450, Brazil

    ORLANDO, FL 328144333

    Phone: (407) 422-9831

    Fax: (407) 648-2065

    Type: Mailing

  • Christian Hospital Northeast, 11133, Dunn Road, Saint Louis County, Missouri, 63136, United States

    DEPT. OF PATHOLOGY

    SAINT LOUIS, MO 631366119

    Phone: (314) 653-5630

    Fax: (314) 653-4099

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

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Medicare Enrollment & Revalidation

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Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

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No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 32814)

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Frequently asked questions

What identifier follows MARILYN F.M. JOHNSTON (M.D.) across health systems?
The NPI 1538141668 uniquely identifies MARILYN F.M. JOHNSTON (M.D.) in U.S. healthcare data.
Does the public listing show MARILYN F.M. JOHNSTON (M.D.) as active?
MARILYN F.M. JOHNSTON (M.D.)'s NPI record reflects an active status in NPPES.
How should patients interpret MARILYN F.M. JOHNSTON (M.D.)'s specialty?
The extract shows Clinical Pathology/Laboratory Medicine Physician for MARILYN F.M. JOHNSTON (M.D.). Clinical services aligned with this taxonomy classification.
What city is tied to MARILYN F.M. JOHNSTON (M.D.)?
The directory associates MARILYN F.M. JOHNSTON (M.D.) with Orlando, Florida. Check all listed addresses for suites or satellite offices.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.