IndividualActive
Mark Denby, LMSW MASTER
NPI 1699511873 · Social Worker · Gaithersburg, MD
Mark Denby, LMSW MASTER is a Social Worker provider in Gaithersburg, MD (NPI 1699511873).
Provider details
- NPI number
- 1699511873
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW MASTER
- Sex
- Male
- Sole proprietor
- No
- License
- 29906 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(56/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
232 Main St
Gaithersburg, MD 20878-5543
Phone: (240) 912-4894
Street-level locationGet directions
Mailing address
1215 N East St
Frederick, MD 21701-4624
Registry dates
- Enumerated
- 2024-07-08
- Last updated
- 2024-07-08
- Certified
- 2024-07-07
Frequently asked questions
- What is Mark Denby's NPI number?
- Mark Denby's National Provider Identifier (NPI) is 1699511873, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Denby's specialty?
- Mark Denby is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Denby located?
- Mark Denby's practice location on file with NPPES is 232 Main St, Gaithersburg, MD 20878-5543.
- What is Mark Denby's phone number?
- The practice phone number listed in the NPPES registry for Mark Denby is (240) 912-4894.
- Is Mark Denby's NPI active?
- Yes — Mark Denby's NPI (1699511873) is active in the NPPES registry as of the last update on 2024-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.