Michael Castillo, MD
NPI 1619991643 · Pain Medicine (Anesthesiology) Physician · Glendale, AZ
Enrolled with Medicare as Practitioner - Interventional Pain Management · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Castillo, MD is a Pain Medicine (Anesthesiology) Physician provider in Glendale, AZ (NPI 1619991643).
Provider details
- NPI number
- 1619991643
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 27636 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Home Infusion Agency251F00000X
Agencies
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
2,360 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 | 603 | $123 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 294 | $175 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 236 | $62 |
| Electronic Analysis Reprogramming and Refill of Spinal Canal Drug Infusion Pump By Physician62370 | 196 | $90 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 140 | $47 |
| Testing for Presence of Drug, Read By Direct Observation |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 104 | 46 |
| Gabapentin | 26 | — |
| Hydromorphone Hcl | 25 | 14 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 14 | — |
| Diazepam | 11 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 11 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2026-02-12
- Certified
- 2022-07-20
Frequently asked questions
- What is Michael Castillo's NPI number?
- Michael Castillo's National Provider Identifier (NPI) is 1619991643, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Castillo's specialty?
- Michael Castillo is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Castillo located?
- Michael Castillo's practice location on file with NPPES is 5310 W Thunderbird Rd Ste 215, Glendale, AZ 85306-4712.
- What is Michael Castillo's phone number?
- The practice phone number listed in the NPPES registry for Michael Castillo is (602) 242-9891.
- Does Michael Castillo accept Medicare?
- Michael Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Castillo's NPI active?
- Yes — Michael Castillo's NPI (1619991643) is active in the NPPES registry as of the last update on 2026-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.