Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas Neal Mellinger, DO

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Saint Cloud, MN · enumerated 2006.

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

National Provider Identifier

1124131073

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Douglas Neal Mellinger

Credential DO

Sex Male

Practice address 1200 6th Ave N, Saint Cloud, MN, 56303

Phone (320) 656-7020

Fax (320) 255-5943

Enumeration date Aug 16, 2006

Last updated in NPPES Mar 26, 2021

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 68816 (MN) Primary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 20A8396 (CA) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
00AX83960	Medicaid	CA	-

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 1124131073 active?

Yes, as of the latest NPPES snapshot, NPI 1124131073 is active (record last updated 2021-03-26).

How do I verify Douglas Mellinger's NPI record?

Cross-check NPI 1124131073 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Paul Peterson Vascular Neurology Physician · Saint Cloud, MN NPI 1902805518 Christopher Leville Vascular Surgery Physician · Saint Cloud, MN NPI 1699776310 Kathleen Mahon Adult Health Nurse Practitioner · Saint Cloud, MN NPI 1790787505 John Mischke Dermatology Physician · Saint Cloud, MN NPI 1609878446 John Teskey Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Saint Cloud, MN NPI 1508868316 Richard Backes Cardiovascular Disease Physician · Saint Cloud, MN NPI 1871595686 Mark Martone Cardiovascular Disease Physician · Saint Cloud, MN NPI 1073515805 Edgar Pineda Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · St Cloud, MN NPI 1811999493

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-26.