Benjamin Callahan, CRNA
NPI 1043560485 · Certified Registered Nurse Anesthetist · Nashville, TN
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Callahan, CRNA is a Certified Registered Nurse Anesthetist provider in Nashville, TN (NPI 1043560485).
Provider details
- NPI number
- 1043560485
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- RN344142 (OH)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
54 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 Procedure to Assess Heart Electrical Activity00537 | 18 | $190 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 14 | $106 |
| Anesthesia for Insertion of Permanent Heart Pacemaker00530 | 11 | $108 |
| Anesthesia for Other Procedure on Urinary System Through Urethra00910 | 11 | $98 |
Typical Medicare-allowed amounts for these services range $98–$190 (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
Additional practice locations (1)
- 2142 N Cove BlvdToledo, OH 43606-3895Phone: (419) 291-4491Fax: (419) 479-6905
Registry dates
- Enumerated
- 2012-09-13
- Last updated
- 2018-09-11
Frequently asked questions
- What is Benjamin Callahan's NPI number?
- Benjamin Callahan's National Provider Identifier (NPI) is 1043560485, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Callahan's specialty?
- Benjamin Callahan is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Benjamin Callahan located?
- Benjamin Callahan's practice location on file with NPPES is 110 29th Ave N Ste 202, Nashville, TN 37203-1448.
- What is Benjamin Callahan's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Callahan is (615) 327-4304.
- Does Benjamin Callahan accept Medicare?
- Benjamin Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Callahan's NPI active?
- Yes — Benjamin Callahan's NPI (1043560485) is active in the NPPES registry as of the last update on 2018-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.