Margo Fredericks, FNP-BC, ARNP
NPI 1508311853 · Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margo Fredericks, FNP-BC, ARNP is a Nurse Practitioner provider in Seattle, WA (NPI 1508311853).
Provider details
- NPI number
- 1508311853
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC, ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN60845692 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
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
9 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
438 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 | 272 | $87 |
| 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 | 113 | $15 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 | $129 |
Typical Medicare-allowed amounts for these services range $15–$129 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 90 | 32 |
| Zanubrutinibbrand: Brukinsa | 45 | — |
| Venetoclaxbrand: Venclexta | 42 | — |
| Acalabrutinib Maleatebrand: Calquence | 24 | — |
| Valacyclovir Hclbrand: Valacyclovir | 24 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 18 | — |
| Allopurinol | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$587 across 7 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
- 2016-08-16
- Last updated
- 2023-02-27
- Certified
- 2023-02-27
Frequently asked questions
- What is Margo Fredericks's NPI number?
- Margo Fredericks's National Provider Identifier (NPI) is 1508311853, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margo Fredericks's specialty?
- Margo Fredericks is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margo Fredericks located?
- Margo Fredericks's practice location on file with NPPES is 825 Eastlake Ave E, Seattle, WA 98109-4405.
- What is Margo Fredericks's phone number?
- The practice phone number listed in the NPPES registry for Margo Fredericks is (206) 520-5000.
- Does Margo Fredericks accept Medicare?
- Margo Fredericks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margo Fredericks's NPI active?
- Yes — Margo Fredericks's NPI (1508311853) is active in the NPPES registry as of the last update on 2023-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.