Guillermo Giangreco MD
About this NPIWhat this record shows.
NPI 1255321030 is registered to Guillermo Giangreco MD, a Critical Care Medicine (Internal Medicine) Physician practising at 301 Hospital Dr in Glen Burnie, Maryland. Critical Care Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Guillermo Giangreco MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 4230635MD· Issued by CIGNA
- 64718901MD· Issued by CARE FIRST BLUE CROSS
- 7103742MD· Issued by AETNA PPO
- 127757MD· Issued by JOHNS HOPKINS HEALTH CARE
- 7103742MD· Issued by AETNA HMO
- F551-0021DC· Issued by CARE FIRST BLUE CROSS
Source: NPPES public registry.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Guillermo Giangreco MD accepts. To confirm in-network status with your specific health plan, contact Guillermo Giangreco MD directly at (410) 787-4000.
Frequently asked
Yes. NPI 1255321030 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Critical Care Medicine (Internal Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (410) 787-4000.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Guillermo Giangreco MD is a Type-1 individual NPI.