William Thompson, M.D.
NPI 1538394408 · Pain Medicine (Anesthesiology) Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Pain Management · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Thompson, M.D. is a Pain Medicine (Anesthesiology) Physician provider in Phoenix, AZ (NPI 1538394408).
Provider details
- NPI number
- 1538394408
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 239789 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
1,585 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 504 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 91 | $88 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 86 | $286 |
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 75 | $61 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/MsG0482 | 75 | $195 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 214 | 90 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 212 | 65 |
| Oxycodone Hcl | 157 | 48 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 145 | 49 |
| Tramadol Hcl | 135 | 37 |
| Methocarbamol | 110 | 48 |
| Tizanidine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-05-21
- Last updated
- 2020-06-22
- Certified
- 2020-06-22
Frequently asked questions
- What is William Thompson's NPI number?
- William Thompson's National Provider Identifier (NPI) is 1538394408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Thompson's specialty?
- William Thompson is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is William Thompson located?
- William Thompson's practice location on file with NPPES is 1850 N Central Ave, Phoenix, AZ 85004-4527.
- What is William Thompson's phone number?
- The practice phone number listed in the NPPES registry for William Thompson is (602) 262-8900.
- Does William Thompson accept Medicare?
- William Thompson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Thompson's NPI active?
- Yes — William Thompson's NPI (1538394408) is active in the NPPES registry as of the last update on 2020-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.