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

Dr. Mary Ann Bos, DO

Individual provider Orthopaedic Hand Surgery Physician · NPI 1780768879

Dr. Mary Ann Bos, DO is an Orthopedic Surgery in Downey, California. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1991, 35 years ago. Practices with Beach Cities Orthopedics and Sports Medicine, a 33-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
CA
In the registry since
2006
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

8555 E Florence Ave
Downey, CA 90240
Phone: (562) 923-9351
Fax: (562) 869-6294
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Hand Surgery Physician (primary) Taxonomy 207XS0106X · Licence 20A7009 (CA)

Record details

NPI number1780768879
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedOctober 25, 2006
Last updated in NPPESJuly 8, 2007
Mailing address8555 E Florence Ave, Downey, CA 90240

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1991 (35 years in practice)
Group practice Beach Cities Orthopedics And Sports Medicine — 33 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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