Marc Zook, MD
NPI 1497761753 · Family Medicine Physician · Round Rock, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Zook, MD is a Family Medicine Physician provider in Round Rock, TX (NPI 1497761753).
Provider details
- NPI number
- 1497761753
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- L8569 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,341 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 155 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 141 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 130 | $128 |
| Hemoglobin A1c Level83036 | 111 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 102 | $90 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 258 | 76 |
| Levothyroxine Sodium | 198 | 52 |
| Rosuvastatin Calcium | 175 | 49 |
| Amlodipine Besylate | 159 | 42 |
| Lisinopril | 143 | 42 |
| Omeprazole | 135 | 45 |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$44 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-31
- Last updated
- 2012-08-02
Frequently asked questions
- What is Marc Zook's NPI number?
- Marc Zook's National Provider Identifier (NPI) is 1497761753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Zook's specialty?
- Marc Zook is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Zook located?
- Marc Zook's practice location on file with NPPES is 940 Hesters Crossing, Round Rock, TX 78681-8018.
- What is Marc Zook's phone number?
- The practice phone number listed in the NPPES registry for Marc Zook is (512) 244-9024.
- Does Marc Zook accept Medicare?
- Marc Zook is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Zook's NPI active?
- Yes — Marc Zook's NPI (1497761753) is active in the NPPES registry as of the last update on 2012-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.