Charles Castellano, MD
NPI 1396845632 · Internal Medicine Physician · Florham Park, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Castellano, MD is a Internal Medicine Physician provider in Florham Park, NJ (NPI 1396845632).
Provider details
- NPI number
- 1396845632
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 232228 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
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
1,844 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 | 583 | $139 |
| 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 | 264 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 201 | $140 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 137 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 100 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 543 | 150 |
| Amlodipine Besylate | 270 | 70 |
| Levothyroxine Sodium | 158 | 36 |
| Lisinopril | 138 | 35 |
| Metformin Hclbrand: Metformin Hcl Er | 130 | 36 |
| Rosuvastatin Calcium | 120 | 37 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-25
- Last updated
- 2026-02-13
- Certified
- 2026-02-13
Frequently asked questions
- What is Charles Castellano's NPI number?
- Charles Castellano's National Provider Identifier (NPI) is 1396845632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Castellano's specialty?
- Charles Castellano is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Castellano located?
- Charles Castellano's practice location on file with NPPES is 140 Park Ave, Florham Park, NJ 07932-1049.
- What is Charles Castellano's phone number?
- The practice phone number listed in the NPPES registry for Charles Castellano is (973) 404-7880.
- Does Charles Castellano accept Medicare?
- Charles Castellano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Castellano's NPI active?
- Yes — Charles Castellano's NPI (1396845632) is active in the NPPES registry as of the last update on 2026-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.