DR. MARTIN JOSEPH GRENNAN M.D. NPI 1861560039

NPI Information

  • NPI: 1861560039
  • Provider Name: DR. MARTIN JOSEPH GRENNAN, M.D.
  • Classification: Anesthesiology - 207LP2900X
  • Specialization: Pain Medicine
  • Entity Type: Individual
  • CLIA Number: 39D0883300
  • Address: 1044 BELMONT AVE
    YOUNGSTOWN, OH
    ZIP 44504
  • Phone: (330) 480-3296

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NPI Details

DR. Martin Joseph Grennan, M.D. is a pain medicine anesthesiology in Youngstown, OH. The provider is an anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists. DR. Martin Joseph Grennan, M.D. NPI is 1861560039. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

The provider's business location address is:

1044 BELMONT AVE
YOUNGSTOWN, OH
ZIP 44504-006
Phone: (330) 480-3296
Fax: (330) 480-2926

The CLIA number assigned to this NPI record is 39D0883300 - physician office with a certificate type of Certificate of Waiver.

The enumeration date for this NPI number is 12/4/2006 and was last updated on 7/8/2007.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1207LP2900XAnesthesiologyPain Medicine35073744OHIOYes

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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