Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Theresa Hoffman Crowley, MD
Pediatrics Physician in Ashburn, VA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831182260
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Registry record
Entity type Individual (Type 1)
Name Theresa Hoffman Crowley
Credential MD
Sex Female
Practice address 20955 Professional Plz, Ste 200, Ashburn, VA, 20147
Phone (703) 729-7952
Fax (703) 729-8746
Enumeration date Aug 31, 2005
Last updated in NPPES Jul 23, 2010
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 0101040802 (VA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 6704662 | Medicaid | VA | - |
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
What specialty is Theresa Crowley?
Theresa Crowley is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Maura Carroll Pediatrics Physician · Ashburn, VA NPI 1174516504 Lewis Gold Pediatrics Physician · Ashburn, VA NPI 1124012588 Susan Weiner Pediatric Nurse Practitioner · Ashburn, VA NPI 1578557930 Michele Reilly Pediatrics Physician · Ashburn, VA NPI 1902890361 Amie Beloy Pediatrics Physician · Ashburn, VA NPI 1568455996 Kelly Welstead Pediatric Nurse Practitioner · Ashburn, VA NPI 1730172164 Cristelle Rodriguez-Singh Pediatric Dentistry · Ashburn, VA NPI 1528156916 Denise Elling Dental Hygienist · Ashburn, VA NPI 1609107564
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-23.