Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Ralph Llewel Diaz Sabang, MD

Individual provider Internal Medicine Physician · NPI 1396196325

Dr. Ralph Llewel Diaz Sabang, MD is a Pulmonary Disease in Valhalla, New York. Qualified in 2009, 17 years ago. Practices with Westchester Medical Center Advanced Physician Services PC, a 880-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
17
Licensed in
NY
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

100 Woods Rd
Valhalla, NY 10595-1530
Phone: (914) 493-2205
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 301274-01 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 301274-01 (NY)

Record details

NPI number1396196325
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2016
Last updated in NPPESSeptember 3, 2025
Certification dateSeptember 3, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Westchester Medical Center Advanced Physician Services Pc — 880 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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