Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Steven W. Zonner, DO

Individual provider Sports Medicine (Family Medicine) Physician · NPI 1578736617

Dr. Steven W. Zonner, DO is a Family Practice in Union City, California. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1986, 40 years ago. Practices with Washington Township Medical Foundation, a 126-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
40
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
CA
In the registry since
2008
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

33077 Alvarado Niles Rd
Union City, CA 94587-3109
Phone: (510) 248-1500
Fax: (510) 675-0846
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sports Medicine (Family Medicine) Physician (primary) Taxonomy 207QS0010X · Licence 20A5986 (CA)

Record details

NPI number1578736617
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 9, 2008
Last updated in NPPESAugust 18, 2016
Mailing address39141 Civic Center Dr, Suite 220, Fremont, CA 94538-5818

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Also practisesSPORTS MEDICINE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1986 (40 years in practice)
Group practice Washington Township Medical Foundation — 126 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services