JOHN JOSEPH MUELLNER MD
NPI 1073661021
Family Medicine in Fontana, CA

Q: What is John Muellner's NPI number?

The NPI number for John Muellner is 1073661021. It was assigned to this individual provider in the NPPES registry on January 8, 2007.

Q: What is John Muellner's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for John Muellner was last updated on September 23, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since January 08, 2007

9961 SIERRA AVE, FONTANA, CA 92335(909) 427-3910 Get Directions Write a Review

NPPES record last updated: September 23, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About John Joseph Muellner Md NPPES

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

JOHN JOSEPH MUELLNER MD (NPI 1073661021) is an individual family medicine provider in Fontana, California, licensed in California (G24700) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1073661021

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameJOHN JOSEPH MUELLNERCredential: MD

Location Address9961 SIERRA AVEFontana, CA 92335-6720

Mailing Address9961 Sierra AveFontana, CA 92335-6720 · (909) 427-3910

Phone(909) 427-3910

Sole ProprietorNo

Enumeration DateJanuary 8, 2007

Last NPPES UpdateSeptember 23, 2008

✔ NPI 1073661021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in CA · G24700

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

9961 SIERRA AVE, Fontana, CA 92335

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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.

SHEILA ANN VANALLEN PT

Physical Therapist

9961 SIERRA AVE, BUILDING 3A
FONTANA, CA 92335

San Bernardino County (909) 427-7727

MR. JAMES DAVID KILLEEN III M.D.

Pediatrics

9961 SIERRA AVE, KAISER PERMANENTE FONTANA - PEDIATRICS
FONTANA, CA 92335

San Bernardino County (909) 427-6960

MR. DHIRESH N PATEL RPH

Pharmacist