Mrs. Catherine Byers Hamilton, MA, CCC-SLP

Mrs. Catherine Byers Hamilton is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in Frederick, MD, registered in the NPPES registry with NPI 1669870911 since 2014.

✓ Active NPI ✓ Valid NPI checksum

NPI	1669870911
Entity type	Individual (Type 1)
Name	Mrs. Catherine Byers Hamilton
Credential	MA, CCC-SLP
Sex	Female
Practice address	120 W CHURCH ST, Frederick, MD, 21701
Phone	3016393772
Enumeration date	2014-12-17
Last updated in NPPES	2014-12-17

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
235Z00000X	Speech-Language Pathologist	Primary	04484	MD

Copy-ready billing details

Provider: Catherine Hamilton, MA, CCC-SLP
NPI: 1669870911
Taxonomy: 235Z00000X (Speech-Language Pathologist)
Address: 120 W CHURCH ST, Frederick, MD, 21701

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1255408563	Anna Peterson	Individual	Mental Health Counselor	Frederick, MD
1699804096	Emily Gordon	Individual	Specialist	Frederick, MD
1629308440	Virginia Hart	Individual	Clinical Social Worker	Frederick, MD
1356650121	Kathleen Mcfadden Myers	Individual	Professional Counselor	Frederick, MD
1174881213	A New Beginning	Organization	Clinical Social Worker	Frederick, MD
1346638087	Harmony Counseling Services	Organization	Professional Counselor	Frederick, MD
1629429618	Frederick Counseling LLC	Organization	Community/Behavioral Health Agency	Frederick, MD
1477064558	Angela Sette	Individual	Mental Health Counselor	Frederick, MD

Verify this record

Cross-check NPI 1669870911 against the authoritative CMS record: view Mrs. Catherine Byers Hamilton on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 Catherine Hamilton?

Catherine Hamilton is registered in NPPES with the primary taxonomy of Speech-Language Pathologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-12-17.