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

Wilhelm Leonard Castellon

Individual provider Internal Medicine Physician · NPI 1821471327

Wilhelm Leonard Castellon is an Internal Medicine in Clarion, Pennsylvania. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2014, 12 years ago. Practices with Hospitalist Medicine Physicians of Texas PLLC, a 701-clinician group and accepts Medicare assignment. Licensed in Pennsylvania and Texas.

Years since qualifying
12
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
PA, TX
In the registry since
2015
Specialties on file
2
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Practice location Address checks out

24 Doctors Ln Ste 202
Clarion, PA 16214-8568
Phone: (814) 226-2500
Fax: (814) 226-2501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence U2802 (TX)
Family Medicine Physician Taxonomy 207Q00000X · Licence OT016669 (PA)

Record details

NPI number1821471327
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJuly 1, 2015
Last updated in NPPESMay 16, 2023
Certification dateMay 16, 2023
Mailing address513 Ridgewood Rd, Shippenville, PA 16254-4004

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2014 (12 years in practice)
Group practice Hospitalist Medicine Physicians Of Texas Pllc — 701 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Clarion