Lyne Schaefer Alfonse, ARNP
NPI 1619907110 · Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lyne Schaefer Alfonse, ARNP is a Nurse Practitioner provider in Seattle, WA (NPI 1619907110).
Provider details
- NPI number
- 1619907110
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP30007657 (WA)
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
19 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
419 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 | 160 | $118 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 83 | $14 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 71 | $130 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 70 | $163 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $84 |
Typical Medicare-allowed amounts for these services range $14–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 135 | 41 |
| Methotrexate Sodiumbrand: Methotrexate | 84 | 28 |
| Hydroxychloroquine Sulfate | 75 | 22 |
| Celecoxib | 74 | 26 |
| Upadacitinibbrand: Rinvoq | 55 | — |
| Gabapentin | 47 | 11 |
| Tofacitinib Citratebrand: Xeljanz Xr | 44 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,016 across 122 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
- 2006-07-03
- Last updated
- 2024-12-16
- Certified
- 2024-12-16
Frequently asked questions
- What is Lyne Schaefer Alfonse's NPI number?
- Lyne Schaefer Alfonse's National Provider Identifier (NPI) is 1619907110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lyne Schaefer Alfonse's specialty?
- Lyne Schaefer Alfonse is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lyne Schaefer Alfonse located?
- Lyne Schaefer Alfonse's practice location on file with NPPES is 1229 Madison St Ste 1450, Seattle, WA 98104-3538.
- What is Lyne Schaefer Alfonse's phone number?
- The practice phone number listed in the NPPES registry for Lyne Schaefer Alfonse is (206) 844-6001.
- Does Lyne Schaefer Alfonse accept Medicare?
- Lyne Schaefer Alfonse is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lyne Schaefer Alfonse's NPI active?
- Yes — Lyne Schaefer Alfonse's NPI (1619907110) is active in the NPPES registry as of the last update on 2024-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.