Walter Milliken, LMHC, LADC-I
NPI 1083897847 · Mental Health Counselor · Boston, MA
Walter Milliken, LMHC, LADC-I is a Mental Health Counselor provider in Boston, MA (NPI 1083897847).
Provider details
- NPI number
- 1083897847
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC, LADC-I
- Sex
- Male
- Sole proprietor
- No
- License
- 5753 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
18 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
- 2007-12-14
- Last updated
- 2007-12-14
Frequently asked questions
- What is Walter Milliken's NPI number?
- Walter Milliken's National Provider Identifier (NPI) is 1083897847, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Milliken's specialty?
- Walter Milliken is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Walter Milliken located?
- Walter Milliken's practice location on file with NPPES is 1010 Massachusetts Ave, Boston, MA 02118-2600.
- What is Walter Milliken's phone number?
- The practice phone number listed in the NPPES registry for Walter Milliken is (617) 534-4212.
- Is Walter Milliken's NPI active?
- Yes — Walter Milliken's NPI (1083897847) is active in the NPPES registry as of the last update on 2007-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.