Ian Sill, MSS, LSW
NPI 1255731436 · Addiction (Substance Use Disorder) Counselor · Philadelphia, PA
Ian Sill, MSS, LSW is a Addiction (Substance Use Disorder) Counselor provider in Philadelphia, PA (NPI 1255731436).
Provider details
- NPI number
- 1255731436
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- MSS, LSW
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 837 Wilder StPhiladelphia, PA 19147-5713Phone: (856) 745-8632
Registry dates
- Enumerated
- 2014-08-25
- Last updated
- 2022-07-21
Frequently asked questions
- What is Ian Sill's NPI number?
- Ian Sill's National Provider Identifier (NPI) is 1255731436, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Sill's specialty?
- Ian Sill is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Ian Sill located?
- Ian Sill's practice location on file with NPPES is 525 S 4th St Ste 243, Philadelphia, PA 19147-1573.
- What is Ian Sill's phone number?
- The practice phone number listed in the NPPES registry for Ian Sill is (215) 925-3153.
- Is Ian Sill's NPI active?
- Yes — Ian Sill's NPI (1255731436) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.