Spencer Roberson, MD
NPI 1144724527 · Anesthesiology Physician · Flagstaff, AZ
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Roberson, MD is a Anesthesiology Physician provider in Flagstaff, AZ (NPI 1144724527).
Provider details
- NPI number
- 1144724527
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 65192 (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
100 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 Extensive Surgery on Spine00670 | 23 | $278 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 21 | $51 |
| Anesthesia for X-Ray Or Radiation Therapy01922 | 15 | $143 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 15 | $37 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 14 | $148 |
| Injection of Anesthetic Agent And/Or Steroid Into Arm Nerve Bundle (brachial Plexus)64415 | 12 | $66 |
Typical Medicare-allowed amounts for these services range $37–$278 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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
- 2018-03-21
- Last updated
- 2025-10-30
- Certified
- 2025-10-30
Frequently asked questions
- What is Spencer Roberson's NPI number?
- Spencer Roberson's National Provider Identifier (NPI) is 1144724527, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Roberson's specialty?
- Spencer Roberson is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Roberson located?
- Spencer Roberson's practice location on file with NPPES is 1200 N Beaver St, Flagstaff, AZ 86001-3118.
- What is Spencer Roberson's phone number?
- The practice phone number listed in the NPPES registry for Spencer Roberson is (928) 779-3366.
- Does Spencer Roberson accept Medicare?
- Spencer Roberson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Roberson's NPI active?
- Yes — Spencer Roberson's NPI (1144724527) is active in the NPPES registry as of the last update on 2025-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.