NPI Portal NPI Lookup & Verification

Michael Lyn Mattern, M.D.

Michael Lyn Mattern is a Orthopaedic Surgery Physician provider (Orthopaedic Surgery) practicing in Dover, DE, registered in the NPPES registry with NPI 1811910391 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI 1811910391
Entity type Individual (Type 1)
Name Michael Lyn Mattern
Credential M.D.
Sex Male
Practice address 724 S NEW ST, Dover, DE, 19904
Phone 3027343416
Fax 3027344960
Enumeration date 2006-07-25
Last updated in NPPES 2012-11-20

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207X00000X Orthopaedic Surgery Physician Primary C1-0002009 DE

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
0000130101 Medicaid DE
Copy-ready billing details
Provider: Michael Mattern, M.D.
NPI: 1811910391
Taxonomy: 207X00000X (Orthopaedic Surgery Physician)
Address: 724 S NEW ST, Dover, DE, 19904

Other providers at this practice address

NPI Name Type Specialty Location
1386638807 Edward Alexander Individual Surgery Physician Dover, DE
1306829189 Darrell Carpenter Individual Surgery Physician Dover, DE
1033184841 John Glenn Individual Surgery Physician Dover, DE
1073532990 Mattern & Associates, MD'S, PA Organization Neuromusculoskeletal Medicine & OMM Physician Dover, DE
1700034766 Radu Nedelcoviciu Individual Surgery Physician Dover, DE
1174834097 Assar Rather Individual Colon & Rectal Surgery Physician Dover, DE
1831487040 Bryan Perey Individual Physician Assistant Dover, DE
1295093946 Krishnaraj Mahendraraj Individual Surgery Physician Dover, DE

Verify this record

Cross-check NPI 1811910391 against the authoritative CMS record: view Michael Lyn Mattern on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1811910391 active?
Yes — as of the latest NPPES snapshot, NPI 1811910391 is active (record last updated 2012-11-20).
How do I verify Michael Mattern's NPI record?
Cross-check NPI 1811910391 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-11-20.