Martin Grennan, MD

Pain Medicine

20+ years in practiceNPI: 1861560039Licensed in OH

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Credentials & Recognition

Specialties

Pain Medicine

NPI sub-specialties

Anesthesiology, Pain Medicine207LP2900X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

20+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#10

Top Pain Medicine Doctors in Ohio, 2026

Pain Medicine · Ohio · 2026

#11

Top Pain Medicine Doctors in Pennsylvania, 2026

Pain Medicine · Pennsylvania · 2026

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Frequently Asked Questions about Dr. Martin Grennan, MD

Where does Dr. Martin Grennan, MD practice?+
Dr. Martin Grennan, MD practices in Pennsylvania, PA. 1044 BELMONT AVE YOUNGSTOWN, OH 445041006.
What is Dr. Martin Grennan, MD's phone number?+
Dr. Martin Grennan, MD's practice phone is 330-480-3296. Office contact information is verified on the PBCMMG profile.
What does Dr. Martin Grennan, MD specialize in?+
Dr. Martin Grennan, MD's primary specialty is Pain Medicine.
Is Dr. Martin Grennan, MD board certified?+
Board certification status for Dr. Martin Grennan, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Martin Grennan, MD been practicing?+
Dr. Martin Grennan, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. Martin Grennan, MD's NPI number?+
Dr. Martin Grennan, MD's National Provider Identifier (NPI) is 1861560039, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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