Richard Ater, ARNP
NPI 1285669234 · Psychiatric/Mental Health Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Ater, ARNP is a Psychiatric/Mental Health Nurse Practitioner provider in Seattle, WA (NPI 1285669234).
Provider details
- NPI number
- 1285669234
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- RN00112428 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
1,719 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,109 | $120 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 496 | $15 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 76 | $204 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 38 | $168 |
Typical Medicare-allowed amounts for these services range $15–$204 (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 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 1,386 | 123 |
| Trazodone Hcl | 784 | 101 |
| Memantine Hcl | 418 | 52 |
| Sertraline Hcl | 407 | 53 |
| Donepezil Hcl | 280 | 39 |
| Mirtazapine | 229 | 33 |
| Divalproex Sodium | 226 | 27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2024-11-19
- Certified
- 2024-11-19
Frequently asked questions
- What is Richard Ater's NPI number?
- Richard Ater's National Provider Identifier (NPI) is 1285669234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Ater's specialty?
- Richard Ater is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Richard Ater located?
- Richard Ater's practice location on file with NPPES is 12345 Lake City Way Ne Ste 117, Seattle, WA 98125-5401.
- What is Richard Ater's phone number?
- The practice phone number listed in the NPPES registry for Richard Ater is (206) 335-2892.
- Does Richard Ater accept Medicare?
- Richard Ater is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Ater's NPI active?
- Yes — Richard Ater's NPI (1285669234) is active in the NPPES registry as of the last update on 2024-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.