Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Prof. Mark Alan Merlo, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1336114099

Prof. Mark Alan Merlo, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Pittsburgh, Pennsylvania. Qualified in 1992, 34 years ago. Practices with Valley Gastroenterology Associates PC, a 25-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
34
Licensed in
PA
In the registry since
2006
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

815 Freeport Rd
Pittsburgh, PA 15215-3301
Phone: (412) 784-4396
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence RN311943L (PA)

Record details

NPI number1336114099
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedFebruary 17, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Group practice Valley Gastroenterology Associates Pc — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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