Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary F Fredenberg, MD

Dermatology Physician in Peoria, AZ · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1134140999

Verified

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Registry record

Entity type Individual (Type 1)

Name Mary F Fredenberg

Credential MD

Sex Female

Practice address 14155 N 83rd Ave, Suite #110, Peoria, AZ, 85381

Phone (623) 215-0911

Fax (623) 215-0912

Enumeration date Jul 21, 2006

Last updated in NPPES Aug 13, 2008

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 16095 (AZ) Primary

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

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 → Validate an NPI →

Frequently asked questions

Where does Mary Fredenberg practice?

The practice location on file with NPPES is in Peoria, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Mary Fredenberg?

The National Provider Identifier (NPI) for Mary Fredenberg is 1134140999, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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North Valley Dermatology LLC Dermatology Physician · Peoria, AZ NPI 1184600884 Terry Lee Radiation Oncology Physician · Peoria, AZ NPI 1255395463 Daljit Bal Gastroenterology Physician · Peoria, AZ NPI 1144273533 Jill West Medical Physician Assistant · Peoria, AZ NPI 1689604977 Tara Walker Pediatric Clinical Nurse Specialist · Peoria, AZ NPI 1558393751 Theresa Magne Dermatology Physician · Peoria, AZ NPI 1417974403 Kenneth J Prebil Surgery Associates, P.C. Specialist · Peoria, AZ NPI 1619199718 Lisa Greenan Physician Assistant · Peoria, AZ NPI 1053567032

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-13.