Joseph Karhan, CRNA
NPI 1881999092 · Certified Registered Nurse Anesthetist · Tacoma, WA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Karhan, CRNA is a Certified Registered Nurse Anesthetist provider in Tacoma, WA (NPI 1881999092).
Provider details
- NPI number
- 1881999092
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- Yes
- License
- 799698 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 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
142 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) |
|---|---|---|
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 28 | $126 |
| Anesthesia for Other Procedure on Large Bowel Using an Endoscope00811 | 24 | $112 |
| Anesthesia for Procedure to Assess Heart Electrical Activity00537 | 21 | $413 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 21 | $93 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 14 | $149 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 12 | $299 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$74 across 3 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
- 2011-01-19
- Last updated
- 2020-12-04
- Certified
- 2020-12-04
Frequently asked questions
- What is Joseph Karhan's NPI number?
- Joseph Karhan's National Provider Identifier (NPI) is 1881999092, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Karhan's specialty?
- Joseph Karhan is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joseph Karhan located?
- Joseph Karhan's practice location on file with NPPES is 1708 Yakima Ave Ste 107, Tacoma, WA 98405-5300.
- What is Joseph Karhan's phone number?
- The practice phone number listed in the NPPES registry for Joseph Karhan is (844) 364-2778.
- Does Joseph Karhan accept Medicare?
- Joseph Karhan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Karhan's NPI active?
- Yes — Joseph Karhan's NPI (1881999092) is active in the NPPES registry as of the last update on 2020-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.