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MARK D GRETSINGER M.D.
NPI 1407843758
Internal Medicine - Gastroenterology in Toledo, OH

Active since October 03, 2005
3439 GRANITE CIR, TOLEDO, OH 43617(419) 843-7996(419) 841-7725 Get Directions Write a Review

NPPES record last updated: April 30, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mark D Gretsinger M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK D GRETSINGER M.D. (NPI 1407843758) is an individual gastroenterology provider in Toledo, Ohio, licensed in Ohio (35051729G) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1407843758
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameMARK D GRETSINGERCredential: M.D.
Location Address3439 GRANITE CIRToledo, OH 43617-1161
Mailing Address3439 Granite CirToledo, OH 43617-1161 · (419) 843-7996 · Fax (419) 841-7725
Phone(419) 843-7996
Fax(419) 841-7725
Sole ProprietorNo
Enumeration DateOctober 3, 2005
Last NPPES UpdateApril 30, 2012
✔ NPI 1407843758 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in OH · 35051729G
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
3439 GRANITE CIR, Toledo, OH 43617
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Other Identifiers 9

Other00633Paramount
Other000000581578Anthem
Medicare ID-Type Unspecified0644972OH
Other$$$$$$$$$-001Mmo
Other4095519Aetna
Medicare UPINE92077OH
Medicare PIN0644973OH
Medicaid0753868OH
OtherP00659823Railroad Medicare

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ENDOSCOPY CENTER INC
Clinic/Center (Ambulatory Surgical)
3439 GRANITE CIR
TOLEDO, OH 43617
Lucas County (419) 843-7993
GREGORY R SLEE M.D.
Internal Medicine (Gastroenterology)
3439 GRANITE CIR
TOLEDO, OH 43617
Lucas County (419) 843-7996
TASHA M KIM PA
Physician Assistant
3439 GRANITE CIR
TOLEDO, OH 43617
Lucas County (419) 843-7996
DIGESTIVE HEALTHCARE CONSULTANTS OF NW OHIO
Internal Medicine (Gastroenterology)
3439 GRANITE CIR
TOLEDO, OH 43617
Lucas County (419) 843-7996
AHMAD MALAS MD
Internal Medicine (Gastroenterology)
3439 GRANITE CIR
TOLEDO, OH 43617
Lucas County (419) 843-7996
KEVIN K KOFFEL M.D.
Internal Medicine (Gastroenterology)
3439 GRANITE CIR
TOLEDO, OH 43617
Lucas County (419) 843-7996
TOLEDO VASCULAR ACCESS CENTER LLC
Surgery (Vascular Surgery)
3439 GRANITE CIR, SUITE 200
TOLEDO, OH 43617
Lucas County (567) 225-6656
MUHANNAD HEIF MD
Internal Medicine (Gastroenterology)
3439 GRANITE CIR
TOLEDO, OH 43617
Lucas County (419) 843-7996

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Gretsinger's NPI number?

The NPI number for Mark Gretsinger is 1407843758. It was assigned to this individual provider in the NPPES registry on October 3, 2005.

Where is Mark Gretsinger located?

Mark Gretsinger practices at 3439 Granite Cir, Toledo, OH 43617. The listed phone number is (419) 843-7996.

What is Mark Gretsinger's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Mark Gretsinger was last updated on April 30, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.