David A. Alejos Castillo, MD
Internal Medicine Physician · Bronx, NY
David A. Alejos Castillo, MD is an internal medicine physician with a practice address in Bronx, New York, and NPI 1104320506, issued on Mar 20, 2018. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- David A. Alejos Castillo
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01092879A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Pelham Pkwy S, Bronx, NY 10461
- Phone
- (718) 918-3230
- Enumerated
- Mar 20, 2018
- Record last updated
- Jun 11, 2024
- Fax
- (718) 918-7343
- Medicare enrollment
- Enrolled (PECOS I20240711002147); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 1400 Pelham Pkwy S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Aaron, PAPhysician Assistant1427103555
- Jacobo AbadiPediatrics Physician1710064001
- Maria Abadi, M.D.Anatomic Pathology Physician1376612549
- Daniel AbaiClinical Social Worker1356046544
- Blanca Zita Abapo, PTPhysical Therapist1548323462
- Hala Abbas, PAPhysician Assistant1558909697
Verify David A. Alejos Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
186 Medicare Part D claims for 53 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 26 claims were for opioids.
Most prescribed
- Prochlorperazine Maleate24 claims
- Ondansetron Odt18 claims
- Dexamethasone16 claims
- Famotidine14 claims
- Ondansetron Hcl13 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.
Industry payments in 2024: $133.78
3 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Indiana University Health Southern Indiana Physicians LLCBloomington, IN
- IU Health Medical Group LLCIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David A. Alejos Castillo among 12,067 internal medicine physician records in New York
David A. Alejos Castillo, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2013 · median 2002 among the 7,221 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
960 internal medicine physician records list a practice address in Bronx
They are 960 of the 32,017 NPPES records with a practice address in Bronx, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Bronx → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Owen Golden, MDBronx, NY 104611841285137
- Sindhu Gupta, M.D.Bronx, NY 104611548256183
- Meyer Halberstam, MDBronx, NY 104611225026511
- Robert Laitman, MDBronx, NY 104611427046689
- Ann Mandel, MDBronx, NY 104611730177023
- Dennis Miura, MD PHDBronx, NY 104611972591253
Common questions
What is David A. Alejos Castillo, MD's NPI number?
David A. Alejos Castillo, MD's National Provider Identifier (NPI) is 1104320506, issued on Mar 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is David A. Alejos Castillo, MD located?
The NPPES record lists a practice address at 1400 Pelham Pkwy S, Bronx, NY, 10461. Phone: (718) 918-3230. Providers update this record themselves, so call before visiting.
How can I verify David A. Alejos Castillo, MD's license?
Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David A. Alejos Castillo, MD prescribe under Medicare Part D?
In 2024, David A. Alejos Castillo, MD had 186 Medicare Part D claims for 53 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.
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.