Frank Knowles, LCSW
NPI 1699884569 · Clinical Social Worker · Portland, ME
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frank Knowles, LCSW is a Clinical Social Worker provider in Portland, ME (NPI 1699884569).
Provider details
- NPI number
- 1699884569
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- LC7105 (ME)
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
19 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
- 2006-08-30
- Last updated
- 2007-07-09
Frequently asked questions
- What is Frank Knowles's NPI number?
- Frank Knowles's National Provider Identifier (NPI) is 1699884569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frank Knowles's specialty?
- Frank Knowles is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Frank Knowles located?
- Frank Knowles's practice location on file with NPPES is 216 Vaughan St, Portland, ME 04102-3204.
- What is Frank Knowles's phone number?
- The practice phone number listed in the NPPES registry for Frank Knowles is (207) 662-2221.
- Does Frank Knowles accept Medicare?
- Frank Knowles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frank Knowles's NPI active?
- Yes — Frank Knowles's NPI (1699884569) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.