Mallory O'Brien
NPI 1487261186 · Mental Health Counselor · Bellingham, WA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mallory O'Brien is a Mental Health Counselor provider in Bellingham, WA (NPI 1487261186).
Provider details
- NPI number
- 1487261186
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- LH61589928 (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 tenure38% of score
5 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
- 2020-09-26
- Last updated
- 2024-10-24
- Certified
- 2024-10-24
Frequently asked questions
- What is Mallory O'Brien's NPI number?
- Mallory O'Brien's National Provider Identifier (NPI) is 1487261186, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory O'Brien's specialty?
- Mallory O'Brien is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mallory O'Brien located?
- Mallory O'Brien's practice location on file with NPPES is 1500 Roma Rd, Bellingham, WA 98226-7801.
- What is Mallory O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Mallory O'Brien is (206) 669-4604.
- Does Mallory O'Brien accept Medicare?
- Mallory O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mallory O'Brien's NPI active?
- Yes — Mallory O'Brien's NPI (1487261186) is active in the NPPES registry as of the last update on 2024-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.