IndividualActive
Mark Olshansky, BSW
NPI 1851857411 · Mental Health Counselor · Key Largo, FL
Mark Olshansky, BSW is a Mental Health Counselor provider in Key Largo, FL (NPI 1851857411).
Provider details
- NPI number
- 1851857411
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- BSW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(60/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
83% 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
99198 Overseas Hwy Ste 3
Key Largo, FL 33037-2437
Phone: (305) 434-7660
Fax: (305) 451-8019
Street-level locationGet directions
Mailing address
99198 Overseas Hwy Ste 3
Key Largo, FL 33037-2437
Registry dates
- Enumerated
- 2019-02-19
- Last updated
- 2019-02-19
Frequently asked questions
- What is Mark Olshansky's NPI number?
- Mark Olshansky's National Provider Identifier (NPI) is 1851857411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Olshansky's specialty?
- Mark Olshansky is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Olshansky located?
- Mark Olshansky's practice location on file with NPPES is 99198 Overseas Hwy Ste 3, Key Largo, FL 33037-2437.
- What is Mark Olshansky's phone number?
- The practice phone number listed in the NPPES registry for Mark Olshansky is (305) 434-7660.
- Is Mark Olshansky's NPI active?
- Yes — Mark Olshansky's NPI (1851857411) is active in the NPPES registry as of the last update on 2019-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.