Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Donna Greenfield, FNP,CNM
Nurse Practitioner in Arnold, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1710061155
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Registry record
Entity type Individual (Type 1)
Name Donna Greenfield
Credential FNP,CNM
Sex Female
Practice address 1454 Baltimore Annapolis Blvd, Arnold, MD, 21012
Phone (410) 626-8982
Fax (410) 626-8805
Enumeration date Oct 24, 2006
Last updated in NPPES Mar 26, 2014
Taxonomy & licenses
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024166424 (VA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024166424 (VA) Primary
367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License AC001273 (MD) Secondary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan.
About the FNP credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 073199400 | Medicaid | MD | - |
| P00397804 | Other | VA | RAILROAD MEDICARE |
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Donna Greenfield?
Donna Greenfield is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-26.