Michael Castellot, MD
NPI 1821431339 · Internal Medicine Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Castellot, MD is a Internal Medicine Physician provider in Bronx, NY (NPI 1821431339).
Provider details
- NPI number
- 1821431339
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 285228 (NY)
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
13 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
172 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 49 | $170 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 35 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $78 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 23 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 15 | $113 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 203 | 65 |
| Fluticasone Propionate | 102 | 23 |
| Amlodipine Besylate | 99 | 27 |
| Lisinopril | 87 | 26 |
| Metformin Hcl | 73 | 22 |
| Pantoprazole Sodium | 54 | 11 |
| Empagliflozinbrand: Jardiance |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-15
- Last updated
- 2025-12-18
- Certified
- 2025-12-18
Frequently asked questions
- What is Michael Castellot's NPI number?
- Michael Castellot's National Provider Identifier (NPI) is 1821431339, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Castellot's specialty?
- Michael Castellot is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Castellot located?
- Michael Castellot's practice location on file with NPPES is 111 E 210th St, Bronx, NY 10467-2401.
- What is Michael Castellot's phone number?
- The practice phone number listed in the NPPES registry for Michael Castellot is (718) 920-2273.
- Does Michael Castellot accept Medicare?
- Michael Castellot is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Castellot's NPI active?
- Yes — Michael Castellot's NPI (1821431339) is active in the NPPES registry as of the last update on 2025-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.