Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Mary Josephine Trout, PHARM.D.

Pharmacotherapy Pharmacist in Dayton, OH · enumerated 2013.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538509187

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Josephine Trout

Credential PHARM.D.

Sex Female

Practice address Dayton, OH, 45409

Phone (937) 208-6692

Enumeration date Jun 27, 2013

Last updated in NPPES Jun 27, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1835P1200X Pharmacotherapy Pharmacist Pharmacy Service Providers · License 03316136 (OH) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1538509187 active?

Yes, as of the latest NPPES snapshot, NPI 1538509187 is active (record last updated 2013-06-27).

How do I verify Mary Trout's NPI record?

Cross-check NPI 1538509187 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Suzanne Dundon Dermatology Physician · Dayton, OH NPI 1699902528 Sravya Surapaneni Internal Medicine Physician · Dayton, OH NPI 1932405297 Indrani Banerjee Internal Medicine Physician · Dayton, OH NPI 1275899015 Alia Radwan Student in an Organized Health Care Education/Training Program · Dayton, OH NPI 1073870671 Uzoma Anaba Emergency Medicine Physician · Dayton, OH NPI 1942568233 Jenna Pathadan Internal Medicine Physician · Dayton, OH NPI 1790104362 Thomas Koroscil Hospitalist Physician · Dayton, OH NPI 1588058408 Edward Roberto Internal Medicine Physician · Dayton, OH NPI 1356736268

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-27.