Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marylou Mapes Dryer, MD

Pediatric Cardiology Physician in Louisville, KY · enumerated 2007.

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

National Provider Identifier

1508060302

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Registry record

Entity type Individual (Type 1)

Name Dr. Marylou Mapes Dryer

Credential MD

Sex Female

Practice address 411 E Chestnut St # 5a, Louisville, KY, 40202

Phone (502) 588-7450

Fax (502) 588-7728

Enumeration date Jun 13, 2007

Last updated in NPPES Oct 14, 2020

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License TP377 (KY) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License A106407 (CA) Secondary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License TP377 (KY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What specialty is Marylou Dryer?

Marylou Dryer is registered in NPPES with the primary taxonomy of Pediatric Cardiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-14.