Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Allyson Deborah Bull, AU.D.
Audiologist in Olney, MD · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1568745750
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Registry record
Entity type Individual (Type 1)
Name Dr. Allyson Deborah Bull
Credential AU.D.
Sex Female
Practice address 18111 Prince Philip Dr, Suite 224, Olney, MD, 20832
Phone (301) 774-0074
Enumeration date Sep 23, 2011
Last updated in NPPES Nov 4, 2016
Taxonomy & licenses
237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers · License 01237 (MD) Secondary
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders.
About the AUD credential
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 is the NPI number for Allyson Bull?
The National Provider Identifier (NPI) for Allyson Bull is 1568745750, a Type 1 (individual) record in the CMS NPPES registry.
Where does Allyson Bull practice?
The practice location on file with NPPES is in Olney, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Susanne Woodlan Obesity Medicine (Obstetrics & Gynecology) Physician · Olney, MD NPI 1447253679 Hubert Leveque Otolaryngology/Facial Plastic Surgery Physician · Olney, MD NPI 1437152584 Dawn Broderick Internal Medicine Physician · Olney, MD NPI 1801899489 Cynthia Chrosniak Otolaryngology Physician · Olney, MD NPI 1346247616 Heather Schwartzbauer Otolaryngology Physician · Olney, MD NPI 1073510343 Bridgette Hubbard Medical Physician Assistant · Olney, MD NPI 1508851395 Christopher Mays Internal Medicine Physician · Olney, MD NPI 1053306829 April Tweedt Adolescent Medicine (Family Medicine) Physician · Olney, MD NPI 1013905546
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-04.