Martha Carlstead, RN
NPI 1134374887 · Certified Registered Nurse Anesthetist · Seattle, WA
Martha Carlstead, RN is a Certified Registered Nurse Anesthetist provider in Seattle, WA (NPI 1134374887).
Provider details
- NPI number
- 1134374887
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- RN00107399 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
15 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 15 | $91 |
Typical Medicare-allowed amounts for these services range $91–$91 (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
- 2008-11-21
- Last updated
- 2017-10-17
Frequently asked questions
- What is Martha Carlstead's NPI number?
- Martha Carlstead's National Provider Identifier (NPI) is 1134374887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Carlstead's specialty?
- Martha Carlstead is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Martha Carlstead located?
- Martha Carlstead's practice location on file with NPPES is 1100 9th Ave, Seattle, WA 98101-2756.
- What is Martha Carlstead's phone number?
- The practice phone number listed in the NPPES registry for Martha Carlstead is (206) 223-6604.
- Is Martha Carlstead's NPI active?
- Yes — Martha Carlstead's NPI (1134374887) is active in the NPPES registry as of the last update on 2017-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.