Xavier Diao, MD
Psychiatry Physician · King Of Prussia, PA
Xavier Diao, MD is a psychiatry physician with a practice address in King Of Prussia, Pennsylvania, and NPI 1902347115, issued on Mar 20, 2017. Check the license (Pennsylvania MD473945, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Xavier Diao
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD473945 PA
Self-reported in NPPES; status is on the state search - Practice location
- 680 American Ave Ste 302, King Of Prussia, PA 19406
- Phone
- (833) 351-8255
- Enumerated
- Mar 20, 2017
- Record last updated
- Jul 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20210520000371); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Also registered at 680 American Ave Ste 302
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Albarracin-ReevesCounselor1568975258
- Beatrice Desir, D.O.Psychiatry Physician1508107640
- Kyra Fragnito, MDPsychiatry Physician1154819407
- Jackie Long, MDPsychiatry Physician1801470026
- Kira Posteraro, D.O.Psychiatry Physician1194028209
- Jeffrey Seley, M.D.Psychiatry Physician1881700532
Verify Xavier Diao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD473945Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average psychiatry physician in 2024
475 Medicare Part D claims for 55 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Clonazepam87 claims
- Sertraline Hcl52 claims
- Lamotrigine27 claims
- Escitalopram Oxalate23 claims
- Duloxetine Hcl22 claims
- Gabapentin21 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Mccd FL Psychiatry Services PAKing Of Prussia, PA
- University OF Penn - Medical GroupPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Xavier Diao among 2,662 psychiatry physician records in Pennsylvania
Xavier Diao, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2012 · median 2003 among the 1,186 with a school on file
- Record last updated2025 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 psychiatry physician records list a practice address in King Of Prussia
They are 14 of the 1,391 NPPES records with a practice address in King Of Prussia, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in King Of Prussia → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Beatrice Desir, D.O.King Of Prussia, PA 194061508107640
- Kyra Fragnito, MDKing Of Prussia, PA 194061154819407
- Maria Lapchenko, DOKing Of Prussia, PA 194061841604238
- Alan Lipschitz, M.D.King Of Prussia, PA 194061952550030
- Jackie Long, MDKing Of Prussia, PA 194061801470026
- Lauren Mordukhaev, MDKing Of Prussia, PA 194061700413754
- Kira Posteraro, D.O.King Of Prussia, PA 194061194028209
- Roman Roytman, MDKing Of Prussia, PA 194061689968570
Common questions
What is Xavier Diao, MD's NPI number?
Xavier Diao, MD's National Provider Identifier (NPI) is 1902347115, issued on Mar 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Xavier Diao, MD located?
The NPPES record lists a practice address at 680 American Ave Ste 302, King Of Prussia, PA, 19406. Phone: (833) 351-8255. Providers update this record themselves, so call before visiting.
How can I verify Xavier Diao, MD's license?
NPPES lists Pennsylvania license number MD473945, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Xavier Diao, MD prescribe under Medicare Part D?
In 2024, Xavier Diao, MD had 475 Medicare Part D claims for 55 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Xavier Diao, MD's MIPS final score?
The 2023 MIPS final score is 85.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.