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

Iun-Iu A. Chen, DO

Individual provider Family Medicine Physician · NPI 1114288412

Iun-Iu A. Chen, DO is a Family Practice in Petaluma, California. Graduated from Rutgers New Jersey Medical School in 2012, 14 years ago. Practices with Petaluma Health Center Inc, a 76-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
14
Trained at
Rutgers New Jersey Medical School
Licensed in
MA
In the registry since
2012
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

1179 N McDowell Blvd
Petaluma, CA 94954-0002
Phone: (707) 559-7500
Fax: (707) 559-7620
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 252070 (MA)

Record details

NPI number1114288412
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 4, 2012
Last updated in NPPESJuly 1, 2025
Certification dateJuly 1, 2025
Mailing address1179 N McDowell Blvd, Petaluma, CA 94954-6559

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 2012 (14 years in practice)
Group practice Petaluma Health Center Inc — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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