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

Marc A Trzeciak, DO

Individual provider Orthopaedic Hand Surgery Physician · NPI 1033111026

Marc A Trzeciak, DO is an Orthopedic Surgery in Modesto, California. Qualified in 1990, 36 years ago. Practices with Stanislaus Orthopaedic and Sports Medicine Clinic, a 10-clinician group and accepts Medicare assignment. Licensed in California and Ohio.

Years since qualifying
36
Licensed in
CA, OH
In the registry since
2005
Specialties on file
3
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

609 E Orangeburg Ave Ste 201
Modesto, CA 95350-5512
Phone: (209) 572-3224
Fax: (209) 572-4528
Show map & directions

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

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 20A12596 (CA)
Orthopaedic Hand Surgery Physician Taxonomy 207XS0106X · Licence 5505 (OH)
Orthopaedic Hand Surgery Physician Taxonomy 207XS0106X · Licence 20A12596 (CA)

Record details

NPI number1033111026
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 10, 2005
Last updated in NPPESMarch 19, 2013
Mailing address609 E Orangeburg Ave, Suite 201, Modesto, CA 95350-5512

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Also practisesHAND SURGERY
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Stanislaus Orthopaedic And Sports Medicine Clinic — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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