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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Don J Merryman, MD, PHD

Anatomic Pathology & Clinical Pathology Physician in Iowa City, IA · enumerated 2006.

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

National Provider Identifier

1558437418

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Registry record

Entity type Individual (Type 1)
Name Mr. Don J Merryman
Credential MD, PHD
Sex Male
Practice address 321 E Market St Ste 102, Iowa City, IA, 52245
Phone (319) 337-7284
Fax (319) 337-7284
Enumeration date Nov 24, 2006
Last updated in NPPES Oct 10, 2008

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 21305 (IA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
0152819 Medicaid IA -

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.

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Frequently asked questions

How do I verify Don Merryman's NPI record?
Cross-check NPI 1558437418 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1558437418 active?
Yes, as of the latest NPPES snapshot, NPI 1558437418 is active (record last updated 2008-10-10).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-10.