Katelynn Nicole Marshall

Katelynn Nicole Marshall is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Timonium, MD, registered in the NPPES registry with NPI 1750990776 since 2020.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1750990776
Entity type	Individual (Type 1)
Name	Katelynn Nicole Marshall
Sex	Female
Practice address	Timonium, MD, 21093
Phone	4433204175
Enumeration date	2020-07-27
Last updated in NPPES	2021-03-22

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
101YA0400X	Addiction (Substance Use Disorder) Counselor	Primary	—	—

Copy-ready billing details

Provider: Katelynn Marshall
NPI: 1750990776
Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor)
Address: Timonium, MD, 21093

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1255302774	Glass Mental Health Foundation Inc	Organization	Methadone Clinic	Timonium, MD
1528325420	Glass Health Programs, Inc.	Organization	Substance Use Disorder Rehabilitation Clinic/Center	Timonium, MD
1568729416	Awakenings Counseling Program	Organization	Methadone Clinic	Timonium, MD
1568080745	Nikolai Grammer	Individual	Addiction (Substance Use Disorder) Counselor	Timonium, MD
1932785912	Mary Cox-Raynor	Individual	Addiction (Substance Use Disorder) Counselor	Timonium, MD
1841876828	Franz Fleishman	Individual	Addiction (Substance Use Disorder) Counselor	Timonium, MD
1942888573	Deborah Reid	Individual	Methadone Clinic	Timonium, MD
1063093946	Stephanie Lamont	Individual	Addiction (Substance Use Disorder) Counselor	Lutherville Timonium, MD

Verify this record

Cross-check NPI 1750990776 against the authoritative CMS record: view Katelynn Nicole Marshall 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

What specialty is Katelynn Marshall?

Katelynn Marshall is registered in NPPES with the primary taxonomy of Addiction (Substance Use Disorder) Counselor. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-03-22.