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

Joseph Teng, DO

Individual provider Internal Medicine Physician · NPI 1619596897

Joseph Teng, DO is an Internal Medicine in San Leandro, California. Graduated from Touro Un College of Osteopathic Medicine, Vallejo in 2020, 6 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
6
Trained at
Touro Un College of Osteopathic Medicine, Vallejo
Licensed in
CA
In the registry since
2020
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.

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Practice location Address checks out

2500 Merced St
San Leandro, CA 94577-4201
Phone: (510) 954-9972
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 20A21523 (CA)

Record details

NPI number1619596897
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 8, 2020
Last updated in NPPESSeptember 26, 2023
Certification dateSeptember 26, 2023
Mailing address2500 Merced St, San Leandro, CA 94577-4201

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolTOURO UN COLLEGE OF OSTEOPATHIC MEDICINE, VALLEJO
Graduated 2020 (6 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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