Ellen Barker-Anderson, APNP
NPI 1558644955 · Psychiatric/Mental Health Nurse Practitioner · Portland, OR
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Barker-Anderson, APNP is a Psychiatric/Mental Health Nurse Practitioner provider in Portland, OR (NPI 1558644955).
Provider details
- NPI number
- 1558644955
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 201601411 (OR)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
149 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 93 | $112 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 30 | $79 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 26 | $62 |
Typical Medicare-allowed amounts for these services range $62–$112 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 109 | 20 |
| Lamotrigine | 104 | 26 |
| Gabapentin | 95 | 20 |
| Clonazepam | 89 | 19 |
| Escitalopram Oxalate | 81 | 20 |
| Buspirone Hcl | 79 | 19 |
| Fluoxetine Hcl | 77 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$94 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-09-21
- Last updated
- 2021-06-17
- Certified
- 2021-06-17
Frequently asked questions
- What is Ellen Barker-Anderson's NPI number?
- Ellen Barker-Anderson's National Provider Identifier (NPI) is 1558644955, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Barker-Anderson's specialty?
- Ellen Barker-Anderson is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ellen Barker-Anderson located?
- Ellen Barker-Anderson's practice location on file with NPPES is 833 Sw 11th Ave Ste 245, Portland, OR 97205-2132.
- What is Ellen Barker-Anderson's phone number?
- The practice phone number listed in the NPPES registry for Ellen Barker-Anderson is (503) 442-6105.
- Does Ellen Barker-Anderson accept Medicare?
- Ellen Barker-Anderson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Barker-Anderson's NPI active?
- Yes — Ellen Barker-Anderson's NPI (1558644955) is active in the NPPES registry as of the last update on 2021-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.