Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David N. Geiger, D.O.
Surgery Physician in Alamosa, CO · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255386496
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Registry record
Entity type Individual (Type 1)
Name David N. Geiger
Credential D.O.
Sex Male
Practice address 106 Blanca Ave, Alamosa, CO, 81101
Phone (719) 589-8073
Fax (719) 589-8087
Enumeration date May 24, 2006
Last updated in NPPES May 5, 2021
Taxonomy & licenses
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 |
|---|---|---|---|
| GE678580 | Other | CO | ANTHEM BC/BS |
| P00397176 | Other | CO | MEDICARE RAILROAD CARRIER |
| 47325364 | Medicaid | CO | - |
| 840255530051 | Other | CO | ROCKY MTN HEALTH PLANS |
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.
Frequently asked questions
How do I verify David Geiger's NPI record?
Cross-check NPI 1255386496 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1255386496 active?
Yes, as of the latest NPPES snapshot, NPI 1255386496 is active (record last updated 2021-05-05).
Other providers at this practice address
Browse all → James Grigsby Cardiovascular Disease Physician · Alamosa, CO NPI 1689677718 Laticia Hollingsworth Physician Assistant · Alamosa, CO NPI 1336142934 Carmelo Hernandez Obstetrics & Gynecology Physician · Alamosa, CO NPI 1437154382 Kendal Knaus Anatomic Pathology & Clinical Pathology Physician · Alamosa, CO NPI 1295731842 Tauqir Ahmad Internal Medicine Physician · Alamosa, CO NPI 1558357285 Kirk Kritner Physician Assistant · Alamosa, CO NPI 1407846405 Gregory Mcauliffe Internal Medicine Physician · Alamosa, CO NPI 1427048198 William Brinton Internal Medicine Physician · Alamosa, CO NPI 1942290218
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-05.