Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
Dr. Elwood Samuel Holland, M.D.
Family Medicine Physician in Cheverly, MD · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821136466
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 7026311 | Other | MD | MAMSI LIFE & HEALRH INSURANCE COMPANY |
| 080187474 | Other | DC | RAILROAD MEDICARE PROVIDE |
| 2107922 | Other | - | AETNA INS. |
| 0100881 | Other | MD | UNITED HEALTHCARE OF THE MID-ATLANTIC,INC. |
| 080187474 | Other | DC | RAILROAD MEDICARE |
| 0795 | Other | DC | BCBSNCA |
| 322601 | Other | MD | OPTIMUM CHOICE, INC. |
| 188621500 | Medicaid | MD | - |
| AS77789810001 | Other | MD | CIGNA HEALTHCARE |
| 4296 | Other | MD | BCBS (CAREFIRST) |
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
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Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.