Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. ARNOLD B MERIN MD
NPI 1093769937
Internal Medicine - Gastroenterology in Tucson, AZ

Q: What is Arnold Merin's NPI number?

The NPI number for Arnold Merin is 1093769937. It was assigned to this individual provider in the NPPES registry on May 22, 2006.

Q: What is Arnold Merin's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Arnold Merin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.

Active since May 22, 2006

1601 N TUCSON BLVD, #14, TUCSON, AZ 85716(520) 795-4155(520) 795-0909 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Mr. Arnold B Merin Md NPPES

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

MR. ARNOLD B MERIN MD (NPI 1093769937) is an individual gastroenterology provider in Tucson, Arizona, licensed in Arizona (11084) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1093769937

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameMR. ARNOLD B MERINCredential: MD

Location Address1601 N TUCSON BLVD, #14Tucson, AZ 85716

Mailing Address1601 N Tucson Blvd, #14Tucson, AZ 85716 · (520) 795-4155 · Fax (520) 795-0909

Phone(520) 795-4155

Fax(520) 795-0909

Sole ProprietorNo

Enumeration DateMay 22, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1093769937 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 AZ · 11084

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.

1601 N TUCSON BLVD, Tucson, AZ 85716

Open in Google Maps ↗

Other Identifiers 1

Medicaid217671AZ

Other Providers at the Same Location NPPES 20

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

MS. DANIELLE RENEA POULIN OTRL

Occupational Therapist (Pediatrics)

1601 N TUCSON BLVD, SUITE 5
TUCSON, AZ 85716

Pima County (520) 325-3540

MS. ANDREA ALAGAMMAI LAC

Acupuncturist

1601 N TUCSON BLVD, STE 22
TUCSON, AZ 85716

Pima County (520) 298-7222

MICHAEL HENDRICK ALLEN M.S.W.

Counselor (Mental Health)

1601 N TUCSON BLVD, SUITE 20
TUCSON, AZ 85716

Pima County (520) 327-6602

MRS. ERIN MARIE PHILLIPS M.S.

Speech-Language Pathologist

1601 N TUCSON BLVD, SUITE 6
TUCSON, AZ 85716

Pima County (520) 829-9635

MANDY GUENDELSBERGER

Occupational Therapist

1601 N TUCSON BLVD, SUITE 5
TUCSON, AZ 85716

Pima County (520) 325-3540

BREANNE RACHELLE ROBISON OTR/L

Specialist

1601 N TUCSON BLVD
TUCSON, AZ 85716

Pima County (520) 240-4226

LAURIE THOMAS MD

Clinic/Center (Primary Care)

1601 N TUCSON BLVD, #4
TUCSON, AZ 85716

Pima County (520) 795-8841

MARY C OCONNELL PT LLC

Physical Therapist (Pediatrics)

1601 N TUCSON BLVD, STE 5-A
TUCSON, AZ 85716

Pima County (520) 325-3540

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 Arnold Merin's NPI number?

The NPI number for Arnold Merin is 1093769937. It was assigned to this individual provider in the NPPES registry on May 22, 2006.

Where is Arnold Merin located?

Arnold Merin practices at 1601 N Tucson Blvd #14, Tucson, AZ 85716. The listed phone number is (520) 795-4155.

What is Arnold Merin'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 Arnold Merin was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days 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.