Marc A. Trzeciak, D. O.
Orthopaedic Surgery Physician · Modesto, CA
Marc A. Trzeciak, D. O. is an orthopaedic surgery physician with a practice address in Modesto, California, and NPI 1033111026, issued on Aug 10, 2005. Check the license (California 20A12596, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marc A. Trzeciak
- Credential
- D. O.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- 20A12596 CA
5505 OH
Self-reported in NPPES; status is on the state search - Practice location
- 609 E Orangeburg Ave, Modesto, CA 95350
- Phone
- (209) 572-3224
- Enumerated
- Aug 10, 2005
- Record last updated
- Mar 19, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (209) 572-4528
- Medicaid ID
- 0188461 OH
- Medicare enrollment
- Enrolled (PECOS I20130201000125); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 609 E Orangeburg Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Casey, M.D.Specialist1811909716
- Brandy Chapin, OTCSurgical Technologist1154688414
- Jonathan Cohen, M.D.Specialist1174535074
- Paige Crowder, LVNLicensed Vocational Nurse1821134503
- Brenda Davis, ORTOther Specialist/Technologist1457481269
- Karen Henriquez, OTCOther Technician1043356827
Verify Marc A. Trzeciak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A12596Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
297 Medicare Part D claims for 200 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 153 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen115 claims
- Prednisone90 claims
- Oxycodone-Acetaminophen28 claims
- Ondansetron Odt12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $52.19
3 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Stanislaus Orthopaedic And Sports Medicine ClinicModesto, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc A. Trzeciak among 2,276 orthopaedic surgery physician records in California
Marc A. Trzeciak, D. O. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1990 · median 2003 among the 1,347 with a school on file
- Record last updated2013 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Modesto → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Stephen Berrien, M.D.Modesto, CA 953501417933698
- Jeffrey Jett, DOModesto, CA 953501669852489
- Jesua Law, D.O.Modesto, CA 953501487090049
- William Pistel, D.O.Modesto, CA 953501518979418
- Shaunton Stubbs, DOModesto, CA 953501083300016
- Mark Hellner, MDMerced, CA 953481659384881
- Samuel Tacke, M.D.Merced, CA 953481235236993
- Mark Via, M.D.Merced, CA 953481568553824
Common questions
What is Marc A. Trzeciak, D. O.'s NPI number?
Marc A. Trzeciak, D. O.'s National Provider Identifier (NPI) is 1033111026, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Marc A. Trzeciak, D. O. located?
The NPPES record lists a practice address at 609 E Orangeburg Ave, Modesto, CA, 95350. Phone: (209) 572-3224. Providers update this record themselves, so call before visiting.
How can I verify Marc A. Trzeciak, D. O.'s license?
NPPES lists California license number 20A12596, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc A. Trzeciak, D. O. prescribe under Medicare Part D?
In 2024, Marc A. Trzeciak, D. O. had 297 Medicare Part D claims for 200 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.