NPI Portal NPI Lookup & Verification

Dr. Omar Marar, M.D.

Dr. Omar Marar is a Colon & Rectal Surgery Physician provider (Colon & Rectal Surgery) practicing in Phoenix, AZ, registered in the NPPES registry with NPI 1912252321 since 2012. The credential MD stands for Doctor of Medicine.

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NPI 1912252321
Entity type Individual (Type 1)
Name Dr. Omar Marar
Credential M.D.
Sex Male
Practice address 6036 N 19TH AVE STE 208, Phoenix, AZ, 85015
Phone 4808969888
Fax 6029535466
Enumeration date 2012-07-23
Last updated in NPPES 2026-04-07

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Secondary MT202922 PA
208600000X Surgery Physician Secondary 4301113819 MI
208C00000X Colon & Rectal Surgery Physician Primary 4301113819 MI

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: Omar Marar, M.D.
NPI: 1912252321
Taxonomy: 208C00000X (Colon & Rectal Surgery Physician)
Address: 6036 N 19TH AVE STE 208, Phoenix, AZ, 85015

Verify this record

Cross-check NPI 1912252321 against the authoritative CMS record: view Dr. Omar Marar on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Where does Omar Marar practice?
The practice location on file with NPPES is in Phoenix, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Omar Marar?
The National Provider Identifier (NPI) for Omar Marar is 1912252321, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-04-07.