Gregory Caldwell, DO
NPI 1427555168 · Anesthesiology Physician · Cottonwood, AZ
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Caldwell, DO is a Anesthesiology Physician provider in Cottonwood, AZ (NPI 1427555168).
Provider details
- NPI number
- 1427555168
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 009585 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
178 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 | 40 | $69 |
| Anesthesia for Exam of Colon Using an Endoscope00812 | 23 | $48 |
| Anesthesia for Procedure on Small and Large Bowel Using an Endoscope00813 | 23 | $87 |
| Anesthesia for Procedure on Upper 2/3rd of Thigh Bone01230 | 18 | $207 |
| Anesthesia for Other Procedure on Lower Abdomen00840 | 17 | $137 |
| Anesthesia for Other Procedure on Urinary System Through Urethra00910 | 17 | $90 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-10
- Last updated
- 2026-04-20
- Certified
- 2026-04-20
Frequently asked questions
- What is Gregory Caldwell's NPI number?
- Gregory Caldwell's National Provider Identifier (NPI) is 1427555168, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Caldwell's specialty?
- Gregory Caldwell is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Caldwell located?
- Gregory Caldwell's practice location on file with NPPES is 269 S Candy Ln, Cottonwood, AZ 86326-4158.
- What is Gregory Caldwell's phone number?
- The practice phone number listed in the NPPES registry for Gregory Caldwell is (928) 639-6150.
- Does Gregory Caldwell accept Medicare?
- Gregory Caldwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Caldwell's NPI active?
- Yes — Gregory Caldwell's NPI (1427555168) is active in the NPPES registry as of the last update on 2026-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.