NPPES file of Aug 9, 2026

Ralph A. D'Silva, M.D.

Internal Medicine Physician · Chandler, AZ

Ralph A. D'Silva, M.D. is an internal medicine physician with a practice address in Chandler, Arizona, and NPI 1871594259, issued on Aug 9, 2005. Check the license (Arizona 36884, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871594259
Name
Ralph A. D'Silva
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
36884 AZ
Self-reported in NPPES; status is on the state search
Practice location
1343 N Alma School RD, Chandler, AZ 85224
Phone
(480) 963-1853
Enumerated
Aug 9, 2005
Record last updated
Feb 21, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(480) 963-1854
Medicaid ID
224192 AZ
Medicare enrollment
Enrolled (PECOS I20070717000101); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1343 N Alma School RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yoginder Chabra, MDFamily Medicine Physician1790759892
  2. Charanjit Dhillon, MDNeurology Physician1386670123
  3. Molly Finley, D.O.Family Medicine Physician1639243058
  4. Jennifer GreshamFamily Nurse Practitioner1164885711
  5. Brittani Hamilton, RN, CNMMidwife1437396736
  6. John Julius, DOFamily Medicine Physician1740247675

Verify Ralph A. D'Silva in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 36884    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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67% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,058 Medicare Part D claims for 428 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 48 claims were for opioids.

  1. Ralph D'Silva1,058
  2. Specialty average3,176

Most prescribed

  1. Methylprednisolone74 claims
  2. Amoxicillin-Clavulanate Potass43 claims
  3. Azithromycin42 claims
  4. Doxycycline Hyclate41 claims
  5. Ciprofloxacin Hcl40 claims
  6. Eliquis38 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Hospitalist Medicine Healthcare LLCShow Low, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

93 internal medicine physician records list a practice address in Chandler

They are 93 of the 5,497 NPPES records with a practice address in Chandler, and 2,853 internal medicine physician records in Arizona.

All 93 in Chandler → All 2,853 in Arizona → Every provider in Chandler →

Other internal medicine physician records in Arizona

  1. Daniel Aaronson, MDTucson, AZ1134865355
  2. Constantia Abarikwu, MDPhoenix, AZ1497832620
  3. Jaber Abawi, MDPayson, AZ1629038542
  4. Demsas Abay, MDPeoria, AZ1720312390
  5. Firas Abbas, M.D. M.P.H.Mesa, AZ1336481407
  6. Hassan Abbas, D.O.Mesa, AZ1477294775
  7. Jalal Abbas, M.D.Sun City West, AZ1205895034
  8. Tayeb Abbas, MDSun City West, AZ1093406795
  9. Hamed Abbaszadegan, MDPhoenix, AZ1407083579
  10. Kristopher Abbate, MDTucson, AZ1184112401

Common questions

What is Ralph A. D'Silva, M.D.'s NPI number?

Ralph A. D'Silva, M.D.'s National Provider Identifier (NPI) is 1871594259, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Ralph A. D'Silva, M.D. located?

The NPPES record lists a practice address at 1343 N Alma School RD, Chandler, AZ, 85224. Phone: (480) 963-1853. Providers update this record themselves, so call before visiting.

How can I verify Ralph A. D'Silva, M.D.'s license?

NPPES lists Arizona license number 36884, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ralph A. D'Silva, M.D. prescribe under Medicare Part D?

In 2024, Ralph A. D'Silva, M.D. had 1,058 Medicare Part D claims for 428 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.