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

Xavier Diao, MD

Individual provider Psychiatry Physician · NPI 1902347115

Xavier Diao, MD practises Psychiatry in King of Prussia, Pennsylvania. Graduated from University of Maryland School of Medicine in 2012, 14 years ago. Practices with Mccd Fl Psychiatry Services PA, a 729-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
14
Trained at
University of Maryland School of Medicine
Licensed in
PA
In the registry since
2017
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

680 American Ave Ste 302
King of Prussia, PA 19406-4023
Phone: (833) 351-8255
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 53 Frontage Rd Fl 1, Hampton, NJ 08827-4031 — (833) 351-8255
  • 109 W 27th St Rm 5s, New York, NY 10001-6208 — (833) 351-8255

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD473945 (PA)

Record details

NPI number1902347115
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 20, 2017
Last updated in NPPESJuly 30, 2025
Certification dateJuly 30, 2025

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice McCd Fl Psychiatry Services Pa — 729 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients99
Services billed 306 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Mccd Fl Psychiatry Services PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 729 clinicians in the practice; 12 are shown here.

Other providers in King of Prussia