R Merrifield, CRNA
NPI 1629374640 · Certified Registered Nurse Anesthetist · Nashville, GA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
R Merrifield, CRNA is a Certified Registered Nurse Anesthetist provider in Nashville, GA (NPI 1629374640).
Provider details
- NPI number
- 1629374640
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- 9277352 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
15 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
48 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 Large Bowel Using an Endoscope00811 | 22 | $129 |
| Anesthesia for Other Procedure on Skin of Arms, Legs, and Front Body00400 | 13 | $124 |
| Anesthesia for Other Procedure on Esophagus, Stomach, Or Upper Small Bowel Using an Endoscope00731 | 13 | $146 |
Typical Medicare-allowed amounts for these services range $124–$146 (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
- 2011-02-09
- Last updated
- 2025-10-16
- Certified
- 2025-10-16
Frequently asked questions
- What is R Merrifield's NPI number?
- R Merrifield's National Provider Identifier (NPI) is 1629374640, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is R Merrifield's specialty?
- R Merrifield is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is R Merrifield located?
- R Merrifield's practice location on file with NPPES is 413 Stone Ln, Nashville, GA 31639-5163.
- What is R Merrifield's phone number?
- The practice phone number listed in the NPPES registry for R Merrifield is (229) 220-6575.
- Does R Merrifield accept Medicare?
- R Merrifield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is R Merrifield's NPI active?
- Yes — R Merrifield's NPI (1629374640) is active in the NPPES registry as of the last update on 2025-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.