Maryann Hanseth, LICSW
NPI 1699735639 · Clinical Social Worker · Bellingham, WA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maryann Hanseth, LICSW is a Clinical Social Worker provider in Bellingham, WA (NPI 1699735639).
Provider details
- NPI number
- 1699735639
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Female
- Sole proprietor
- No
- License
- LW00006428 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
561 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Psychotherapy, 1 Hour90837 | 503 | $114 |
| Psychotherapy, 45 Minutes90834 | 58 | $77 |
Typical Medicare-allowed amounts for these services range $77–$114 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-24
- Last updated
- 2010-12-01
Frequently asked questions
- What is Maryann Hanseth's NPI number?
- Maryann Hanseth's National Provider Identifier (NPI) is 1699735639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryann Hanseth's specialty?
- Maryann Hanseth is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Maryann Hanseth located?
- Maryann Hanseth's practice location on file with NPPES is 3015 Squalicum Pkwy, Bellingham, WA 98225-1945.
- What is Maryann Hanseth's phone number?
- The practice phone number listed in the NPPES registry for Maryann Hanseth is (360) 715-4186.
- Does Maryann Hanseth accept Medicare?
- Maryann Hanseth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maryann Hanseth's NPI active?
- Yes — Maryann Hanseth's NPI (1699735639) is active in the NPPES registry as of the last update on 2010-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.