Teresa Gegax-Martinez, ARNP
NPI 1861780264 · Adult Health Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Gegax-Martinez, ARNP is a Adult Health Nurse Practitioner provider in Seattle, WA (NPI 1861780264).
Provider details
- NPI number
- 1861780264
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP60235412 (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
14 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
232 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) |
|---|---|---|
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 161 | $76 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 49 | $46 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 22 | $73 |
Typical Medicare-allowed amounts for these services range $46–$76 (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
Registry dates
- Enumerated
- 2011-07-19
- Last updated
- 2011-07-19
Frequently asked questions
- What is Teresa Gegax-Martinez's NPI number?
- Teresa Gegax-Martinez's National Provider Identifier (NPI) is 1861780264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Gegax-Martinez's specialty?
- Teresa Gegax-Martinez is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Teresa Gegax-Martinez located?
- Teresa Gegax-Martinez's practice location on file with NPPES is 1560 N 115th St, Seattle, WA 98133-8414.
- What is Teresa Gegax-Martinez's phone number?
- The practice phone number listed in the NPPES registry for Teresa Gegax-Martinez is (206) 368-1244.
- Does Teresa Gegax-Martinez accept Medicare?
- Teresa Gegax-Martinez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Gegax-Martinez's NPI active?
- Yes — Teresa Gegax-Martinez's NPI (1861780264) is active in the NPPES registry as of the last update on 2011-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.