Mary Fredericks, ARNP
NPI 1306188032 · Psychiatric/Mental Health Nurse Practitioner · Olympia, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Fredericks, ARNP is a Psychiatric/Mental Health Nurse Practitioner provider in Olympia, WA (NPI 1306188032).
Provider details
- NPI number
- 1306188032
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP60491874 (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 tenure28% of score
13 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
253 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 | 242 | $106 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 11 | $186 |
Typical Medicare-allowed amounts for these services range $106–$186 (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 · 25 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 64 |
| Clonazepam | 63 |
| Quetiapine Fumarate | 57 |
| Gabapentin | 53 |
| Lamotrigine | 41 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 35 |
| Trazodone Hcl | 35 |
| Lorazepam | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-03-20
- Last updated
- 2021-05-18
- Certified
- 2021-05-18
Frequently asked questions
- What is Mary Fredericks's NPI number?
- Mary Fredericks's National Provider Identifier (NPI) is 1306188032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Fredericks's specialty?
- Mary Fredericks is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Fredericks located?
- Mary Fredericks's practice location on file with NPPES is 413 Lilly Rd Ne, Olympia, WA 98506-5133.
- What is Mary Fredericks's phone number?
- The practice phone number listed in the NPPES registry for Mary Fredericks is (360) 493-7060.
- Does Mary Fredericks accept Medicare?
- Mary Fredericks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Fredericks's NPI active?
- Yes — Mary Fredericks's NPI (1306188032) is active in the NPPES registry as of the last update on 2021-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.