Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mark A Gregorio, DNP, APRN, CNP, NP-C

Individual provider Adult Health Nurse Practitioner · NPI 1598066698

Dr. Mark A Gregorio, DNP, APRN, CNP, NP-C is an Adult Health Nurse Practitioner in New Haven, Connecticut. Licensed in Connecticut. Registered with an NPI since 2010.

Licensed in
CT
In the registry since
2010
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
CNP — Certified Nurse Practitioner
A certified nurse practitioner.
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

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Practice location Address checks out

42 Concord St
New Haven, CT 06512-4005
Phone: (860) 823-0645
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 12.004539 (CT)

Record details

NPI number1598066698
Entity typeIndividual (Type 1)
GenderMale
Credentials DNP , APRN , CNP , NP-C
Sole proprietorNo
NPI enumeratedNovember 6, 2010
Last updated in NPPESOctober 14, 2021
Certification dateOctober 14, 2021

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