Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Barbara J Merz, M.D.
Surgery Physician in Phoenix, AZ · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902808090
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Registry record
Entity type Individual (Type 1)
Name Barbara J Merz
Credential M.D.
Sex Female
Practice address 3815 E Bell Rd, Suite 2200, Phoenix, AZ, 85032
Phone (602) 995-0822
Fax (602) 995-0825
Enumeration date Aug 10, 2005
Last updated in NPPES Sep 21, 2010
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 137465 | Medicaid | AZ | - |
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.
Frequently asked questions
What is the NPI number for Barbara Merz?
The National Provider Identifier (NPI) for Barbara Merz is 1902808090, a Type 1 (individual) record in the CMS NPPES registry.
Where does Barbara Merz practice?
The practice location on file with NPPES is in Phoenix, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → John Wells Specialist · Phoenix, AZ NPI 1043214422 Vivien Kolber Adult Health Nurse Practitioner · Phoenix, AZ NPI 1649275967 Richard Kelly Internal Medicine Physician · Phoenix, AZ NPI 1528068178 Michael Drury Internal Medicine Physician · Phoenix, AZ NPI 1568462893 Kara Villareal Surgery Physician · Phoenix, AZ NPI 1104826114 Thomas Mirzai Allergy & Immunology Physician · Phoenix, AZ NPI 1447243886 Nagappa Prakash Cardiovascular Disease Physician · Phoenix, AZ NPI 1245216779 Pnina Levine General Practice Dentistry · Phoenix, AZ NPI 1265499156
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-21.