Dr. Zachary Daniel Marks, MD
- Medicare services, 2021
- 627
- Part D claims, 2024
- 11
- Hospital affiliations
- 1
- Industry payments
- $11
- Medical group
- 1
- Practice address
- One Medical Plaza, Roseville, CA 95661
- Practice phone
- Call (916) 781-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Marks' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Zachary Daniel Marks is an internist in Roseville, California
Dr. Marks practices at Sutter Roseville Medical Center in Roseville, California, part of Sutter Health.
Dr. Marks' NPI, 1265819445, was assigned on April 27, 2015. Dr. Marks graduated from Tulane School of Medicine in 2014. Dr. Marks holds California license A146409.
- NPI
- 1265819445NPI Registry (opens in a new tab)
- NPI enumeration date
- April 27, 2015
- NPI status
- Active
- Practice phone
- (916) 781-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Zachary Daniel Marks practices at 2 locations in Roseville, California
Dr. Marks' primary practice is Sutter Roseville Medical Center, at One Medical Plaza, Roseville, CA 95661 in Placer County. The practice phone is (916) 781-1000. Dr. Marks also practices at Sutter Roseville Medical Center, 1 Medical Plz, Roseville, CA 95661.
- Sutter Roseville Medical CenterPrimaryOne Medical Plaza, Roseville, CA 95661 · Placer CountyPhone(916) 781-1000
- Sutter Roseville Medical Center1 Medical Plz, Roseville, CA 95661 · Placer CountyPhone(800) 353-3369
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Zachary Daniel Marks is affiliated with 1 site of care and 1 medical group
Dr. Marks' primary practice is Sutter Roseville Medical Center in Roseville, California, part of Sutter Health. The medical group on file is UC Davis Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Zachary Daniel Marks' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marks practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Roseville Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Zachary Daniel Marks is one of 16,751 internists in California
Internal medicine is Dr. Marks' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Marks is board certified in internal medicine by the American Board of Internal Medicine. Dr. Marks is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Marks
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Zachary Daniel Marks billed Medicare for 627 services in 2021
CMS data shows 627 Medicare services from Dr. Marks across 9 procedure codes in 2021. Medicare paid $52,240 for them. Every service was in an office.
Dr. Marks' Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 5292021: 46911%
- Other services
- 2020: 672021: 739%
- Tests and treatments
- 2020: 432021: 7165%
- Surgery
- 2020: 202021: 1430%
Dr. Marks compared with the California median for internists, 2021
- Dr. Marks
- California median
- Medicare services
- 627vs 36174% above
- Part D claims
- 83vs 42180% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Marks' most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Marks?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marks and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Zachary Daniel Marks' patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Marks' median patient age at 65, with 12% women.
Dr. Marks' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women12%
- Men88%
Source: Dmand AI Patient Panel Data
Dr. Zachary Daniel Marks wrote 11 Medicare Part D claims in 2024
In 2024, Dr. Marks wrote 11 Medicare Part D claims. They cover 4 drugs, with $12,904 in total drug cost. In 2021, CMS named 1,580 claims across 52 drugs.
Dr. Marks' most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,5802022: 8395%
Drugs named by CMS: 4 in 2022, 52 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Zachary Daniel Marks received $11 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Marks from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Ferring Pharmaceuticals Inc. paid the most, $11.
Companies that paid Dr. Marks the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Zachary Daniel Marks graduated from Tulane School of Medicine
Dr. Marks graduated from Tulane School of Medicine in 2014.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Zachary Daniel Marks's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Zachary Daniel Marks
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Zachary Daniel Marks' NPI number?
Dr. Zachary Daniel Marks' NPI number is 1265819445. It was assigned on April 27, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Zachary Daniel Marks?
Dr. Zachary Daniel Marks is an internist in Roseville, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Zachary Daniel Marks practice?
Dr. Marks practices at One Medical Plaza, Roseville, CA 95661. Dr. Marks also practices at 1 Medical Plz, Roseville, CA 95661. Dr. Marks' primary practice is Sutter Roseville Medical Center in Roseville, California, part of Sutter Health.
What is Dr. Zachary Daniel Marks' office phone number?
The practice phone on file for Dr. Marks is (916) 781-1000.
What is Dr. Zachary Daniel Marks' medical license number?
Dr. Marks holds California license A146409.
Which hospitals is Dr. Zachary Daniel Marks affiliated with?
Dr. Marks practices at Sutter Roseville Medical Center in Roseville, California.
What medical group is Dr. Zachary Daniel Marks part of?
Dr. Marks is linked to UC Davis Medical Group.
Does Dr. Zachary Daniel Marks accept Medicare?
Yes. CMS data shows Dr. Marks billed Medicare for 627 services in 2021.
Is Dr. Zachary Daniel Marks board certified?
Yes. Dr. Marks is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Zachary Daniel Marks bill to Medicare?
In 2021, Dr. Marks' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, established patient (99213).
Show 4 more questionsShow fewer questions
Where did Dr. Zachary Daniel Marks go to medical school?
Dr. Marks graduated from Tulane School of Medicine in 2014.
What drugs does Dr. Zachary Daniel Marks prescribe most?
In 2022 Medicare Part D data, Dr. Marks' most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Duloxetine HCl.
Has Dr. Zachary Daniel Marks received payments from drug or device companies?
CMS Open Payments shows $11 in general payments to Dr. Marks from 1 company from 2020 to 2020. The largest total came from Ferring Pharmaceuticals Inc.
How long has Dr. Zachary Daniel Marks been practicing?
Dr. Marks graduated from medical school in 2014, 12 years ago.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card