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

Dr. Thomas L Mertz, DO, PHARMD

Individual provider Internal Medicine Physician · NPI 1942495825

Dr. Thomas L Mertz, DO, PHARMD is an Internal Medicine in Pittsburgh, Pennsylvania. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2004, 22 years ago. Practices with Allergy and Asthma Associates of Pittsburgh, a 2-clinician group and accepts Medicare assignment. Licensed in Connecticut and Pennsylvania.

Years since qualifying
22
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
CT, PA
In the registry since
2007
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.
PHARMD — Doctor of Pharmacy
The professional degree required to practise as a pharmacist in the United States.

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Practice location Address checks out

2585 Freeport Rd Ste 210
Pittsburgh, PA 15238-1426
Phone: (412) 828-3800
Fax: (412) 828-8561
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Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence OS015695 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 046528 (CT)
Pediatrics Physician Taxonomy 208000000X · Licence 046528 (CT)

Record details

NPI number1942495825
Entity typeIndividual (Type 1)
GenderMale
Credentials DO , PHARMD
Sole proprietorNo
NPI enumeratedSeptember 13, 2007
Last updated in NPPESJune 5, 2023
Certification dateJune 5, 2023

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 2004 (22 years in practice)
Group practice Allergy And Asthma Associates Of Pittsburgh — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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