Hayley Hemphill, PSYD
NPI 1124553508 · Clinical Psychologist · Seattle, WA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hayley Hemphill, PSYD is a Clinical Psychologist provider in Seattle, WA (NPI 1124553508).
Provider details
- NPI number
- 1124553508
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Female
- Sole proprietor
- No
- License
- PY61306567 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
65 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, 30 Minutes90832 | 37 | $83 |
| Psychiatric Diagnostic Evaluation90791 | 28 | $183 |
Typical Medicare-allowed amounts for these services range $83–$183 (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
Additional practice locations (1)
- 1730 Minor Ave Ste 400Seattle, WA 98101-2402Phone: (206) 320-2961Fax: (206) 710-9013
Registry dates
- Enumerated
- 2017-04-24
- Last updated
- 2025-04-04
- Certified
- 2025-04-04
Frequently asked questions
- What is Hayley Hemphill's NPI number?
- Hayley Hemphill's National Provider Identifier (NPI) is 1124553508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hayley Hemphill's specialty?
- Hayley Hemphill is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Hayley Hemphill located?
- Hayley Hemphill's practice location on file with NPPES is 1124 Columbia St Ste 400, Seattle, WA 98104-2053.
- What is Hayley Hemphill's phone number?
- The practice phone number listed in the NPPES registry for Hayley Hemphill is (206) 215-2090.
- Does Hayley Hemphill accept Medicare?
- Hayley Hemphill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hayley Hemphill's NPI active?
- Yes — Hayley Hemphill's NPI (1124553508) is active in the NPPES registry as of the last update on 2025-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.