Thomas Marx Do, MD
Hospitalist Physician · Sacramento, CA
Thomas Marx Do, MD is a hospitalist physician with a practice address in Sacramento, California, and NPI 1346280245, issued on Jun 8, 2006. Check the license (California A78702, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas Marx Do
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- A78702 CA
0101238253 VA
Self-reported in NPPES; status is on the state search - Practice location
- 8120 Timberlake Way Ste 107, Sacramento, CA 95823
- Phone
- (916) 681-6000
- Enumerated
- Jun 8, 2006
- Record last updated
- Mar 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (916) 681-6188
- Medicaid ID
- 010222338 VA
- Medicare enrollment
- Enrolled (PECOS I20070110000589); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1994
- Entity
- Type 1 · individual
Also registered at 8120 Timberlake Way Ste 107
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Marx Do in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A78702Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average hospitalist physician in 2024
100 Medicare Part D claims for 54 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass13 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.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Dignity Health Medical FoundationGrass Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
Other hospitalist physician records in California
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- Michael Abdel-Malek, MDDublin, CA1952388852
- Amr Abdelaty, MDWoodland, CA1962996348
- Anwar Abdelhadi, M.D.Orange, CA1093784191
- Farid Abdelmalak, M.D.Santa Monica, CA1912392937
- Elijah AbdelmeseehLong Beach, CA1346827631
- Homayoun Abdollahzadeh, M.D.Rancho Mirage, CA1871802454
- Wajidah Abdul-KhabirDuarte, CA1215323522
- Rizwana Abdullah, MDRoseville, CA1194899401
Common questions
What is Thomas Marx Do, MD's NPI number?
Thomas Marx Do, MD's National Provider Identifier (NPI) is 1346280245, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Marx Do, MD located?
The NPPES record lists a practice address at 8120 Timberlake Way Ste 107, Sacramento, CA, 95823. Phone: (916) 681-6000. Providers update this record themselves, so call before visiting.
How can I verify Thomas Marx Do, MD's license?
NPPES lists California license number A78702, 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 Thomas Marx Do, MD prescribe under Medicare Part D?
In 2024, Thomas Marx Do, MD had 100 Medicare Part D claims for 54 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Thomas Marx Do, MD's MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.