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Christopher Macdonald Mertz, M.D.

Hospitalist Physician in Concord, NH · enumerated 2008.

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

National Provider Identifier

1023280328

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Registry record

Entity type Individual (Type 1)
Name Christopher Macdonald Mertz
Credential M.D.
Sex Male
Practice address 250 Pleasant St, Suite 6073, Concord, NH, 03301
Phone (603) 227-7000
Fax (603) 227-7191
Enumeration date Mar 26, 2008
Last updated in NPPES Apr 19, 2017

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 15317 (NH) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 15317 (NH) Secondary
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.

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Frequently asked questions

How do I verify Christopher Mertz's NPI record?
Cross-check NPI 1023280328 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1023280328 active?
Yes, as of the latest NPPES snapshot, NPI 1023280328 is active (record last updated 2017-04-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-19.