Sean Macmillen, LPC
NPI 1528446259 · Mental Health Counselor · Williamsport, PA
Sean Macmillen, LPC is a Mental Health Counselor provider in Williamsport, PA (NPI 1528446259).
Provider details
- NPI number
- 1528446259
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LPC
- Sex
- Male
- Sole proprietor
- Yes
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
11 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
Mailing address
Registry dates
- Enumerated
- 2015-05-14
- Last updated
- 2017-08-15
Frequently asked questions
- What is Sean Macmillen's NPI number?
- Sean Macmillen's National Provider Identifier (NPI) is 1528446259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Macmillen's specialty?
- Sean Macmillen is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Sean Macmillen located?
- Sean Macmillen's practice location on file with NPPES is 1100 Grampian Blvd, Williamsport, PA 17701-1909.
- What is Sean Macmillen's phone number?
- The practice phone number listed in the NPPES registry for Sean Macmillen is (570) 320-7525.
- Is Sean Macmillen's NPI active?
- Yes — Sean Macmillen's NPI (1528446259) is active in the NPPES registry as of the last update on 2017-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.