Marc E. Zook, MD
Family Medicine Physician · Round Rock, TX
Marc E. Zook, MD is a family medicine physician with a practice address in Round Rock, Texas, and NPI 1497761753, issued on Jul 31, 2006. Check the license (Texas L8569, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marc E. Zook
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- L8569 TX
Self-reported in NPPES; status is on the state search - Practice location
- 940 Hesters Crossing, Round Rock, TX 78681
- Phone
- (512) 244-9024
- Enumerated
- Jul 31, 2006
- Record last updated
- Aug 2, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (512) 218-3704
- Medicaid IDs
- 170056901 TX
170056902 TX - Medicare enrollment
- Enrolled (PECOS I20040526001150); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1995
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 940 Hesters Crossing
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marc E. Zook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L8569Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average family medicine physician in 2024
3,838 Medicare Part D claims for 409 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium258 claims
- Levothyroxine Sodium198 claims
- Rosuvastatin Calcium175 claims
- Amlodipine Besylate159 claims
- Lisinopril143 claims
- Omeprazole135 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: $44.07
3 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 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
- Austin Regional Clinic PAAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc E. Zook among 11,119 family medicine physician records in Texas
Marc E. Zook, MD is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1995 · median 2004 among the 7,095 with a school on file
- Record last updated2012 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 family medicine physician records list a practice address in Round Rock
They are 86 of the 3,815 NPPES records with a practice address in Round Rock, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Round Rock → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Norma Anderson, M.D.Round Rock, TX 786811013953736
- James Boyd, M.D.Round Rock, TX 786811629073929
- Elbert David, M.D.Round Rock, TX 786811861494924
- Flint Deshazo, M.D.Round Rock, TX 786811669474623
- David Diaz, M.D.Round Rock, TX 786811033106380
- Bryan Irvin, MDRound Rock, TX 786811831104991
- Atsushi Matsubara, M.D.Round Rock, TX 786811871535195
- William Meiser, D.O.Round Rock, TX 786811962428482
Common questions
What is Marc E. Zook, MD's NPI number?
Marc E. Zook, MD's National Provider Identifier (NPI) is 1497761753, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc E. Zook, MD located?
The NPPES record lists a practice address at 940 Hesters Crossing, Round Rock, TX, 78681. Phone: (512) 244-9024. Providers update this record themselves, so call before visiting.
How can I verify Marc E. Zook, MD's license?
NPPES lists Texas license number L8569, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc E. Zook, MD prescribe under Medicare Part D?
In 2024, Marc E. Zook, MD had 3,838 Medicare Part D claims for 409 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.