Ralph D'Silva, M.D.
NPI 1871594259 · Internal Medicine Physician · Chandler, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ralph D'Silva, M.D. is a Internal Medicine Physician provider in Chandler, AZ (NPI 1871594259).
Provider details
- NPI number
- 1871594259
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 36884 (AZ)
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
20 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
2,372 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,136 | $113 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 569 | $109 |
| Critical Care, First 30-74 Minutes99291 | 334 | $203 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 333 | $166 |
Typical Medicare-allowed amounts for these services range $109–$203 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 74 | 72 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 43 | 43 |
| Azithromycin | 42 | 41 |
| Doxycycline Hyclate | 41 | 40 |
| Ciprofloxacin Hcl | 40 | 38 |
| Apixabanbrand: Eliquis | 38 | 29 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 35 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-09
- Last updated
- 2013-02-21
Frequently asked questions
- What is Ralph D'Silva's NPI number?
- Ralph D'Silva's National Provider Identifier (NPI) is 1871594259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph D'Silva's specialty?
- Ralph D'Silva is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ralph D'Silva located?
- Ralph D'Silva's practice location on file with NPPES is 1343 N Alma School Rd, Chandler, AZ 85224-5941.
- What is Ralph D'Silva's phone number?
- The practice phone number listed in the NPPES registry for Ralph D'Silva is (480) 963-1853.
- Does Ralph D'Silva accept Medicare?
- Ralph D'Silva is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ralph D'Silva's NPI active?
- Yes — Ralph D'Silva's NPI (1871594259) is active in the NPPES registry as of the last update on 2013-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.