Nathan Carden, DO
NPI 1558340794 · Anesthesiology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Carden, DO is a Anesthesiology Physician provider in Portland, OR (NPI 1558340794).
Provider details
- NPI number
- 1558340794
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 43591 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
89 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) |
|---|---|---|
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 25 | $60 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 23 | $330 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 16 | $108 |
| Anesthesia for Total Hip Replacement01214 | 14 | $384 |
| Anesthesia for Other Procedure on Lower Abdomen00840 | 11 | $286 |
Typical Medicare-allowed amounts for these services range $60–$384 (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
- 2006-01-16
- Last updated
- 2018-10-10
Frequently asked questions
- What is Nathan Carden's NPI number?
- Nathan Carden's National Provider Identifier (NPI) is 1558340794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Carden's specialty?
- Nathan Carden is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Carden located?
- Nathan Carden's practice location on file with NPPES is 707 Sw Washington St Ste 700, Portland, OR 97205-3523.
- What is Nathan Carden's phone number?
- The practice phone number listed in the NPPES registry for Nathan Carden is (503) 299-9906.
- Does Nathan Carden accept Medicare?
- Nathan Carden is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Carden's NPI active?
- Yes — Nathan Carden's NPI (1558340794) is active in the NPPES registry as of the last update on 2018-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.