Mary Lou Lyon, Lcpc, LLC
NPI 1811310238 · Professional Counselor · Rockville, MD
Mary Lou Lyon, Lcpc, LLC is a Professional Counselor organization in Rockville, MD (NPI 1811310238).
Provider details
- NPI number
- 1811310238
- Entity type
- Organization
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Mary Lyon, Owner(301) 762-4100
- License
- LC1509 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-01-22
- Last updated
- 2014-01-22
Frequently asked questions
- What is Mary Lou Lyon, Lcpc, LLC's NPI number?
- Mary Lou Lyon, Lcpc, LLC's National Provider Identifier (NPI) is 1811310238, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mary Lou Lyon, Lcpc, LLC?
- Mary Lou Lyon, Lcpc, LLC is classified in the NPPES registry as Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Mary Lou Lyon, Lcpc, LLC located?
- Mary Lou Lyon, Lcpc, LLC's practice location on file with NPPES is 966 Hungerford Dr, Rockville, MD 20850-1714.
- What is Mary Lou Lyon, Lcpc, LLC's phone number?
- The practice phone number listed in the NPPES registry for Mary Lou Lyon, Lcpc, LLC is (301) 762-4100.
- Who is the authorized official for Mary Lou Lyon, Lcpc, LLC?
- The authorized official listed on Mary Lou Lyon, Lcpc, LLC's NPPES record is Mary Lyon, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mary Lou Lyon, Lcpc, LLC's NPI active?
- Yes — Mary Lou Lyon, Lcpc, LLC's NPI (1811310238) is active in the NPPES registry as of the last update on 2014-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.