Daniel Zenk, MD
NPI 1326026956 · Internal Medicine Physician · Greeley, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Zenk, MD is a Internal Medicine Physician provider in Greeley, CO (NPI 1326026956).
Provider details
- NPI number
- 1326026956
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 33395 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,143 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 921 | $76 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 385 | $48 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 258 | $76 |
| Administration of Influenza Virus VaccineG0008 | 111 | $33 |
| 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'SG2211 | 99 | $15 |
| Hemoglobin A1c Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 143 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 977 | 257 |
| Atorvastatin Calcium | 942 | 269 |
| Lisinopril | 817 | 224 |
| Losartan Potassium | 735 | 219 |
| Omeprazole | 615 | 174 |
| Amlodipine Besylate | 603 | 184 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-04
- Last updated
- 2013-07-01
Frequently asked questions
- What is Daniel Zenk's NPI number?
- Daniel Zenk's National Provider Identifier (NPI) is 1326026956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Zenk's specialty?
- Daniel Zenk is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Zenk located?
- Daniel Zenk's practice location on file with NPPES is 1900 16th St, Greeley, CO 80631-5114.
- What is Daniel Zenk's phone number?
- The practice phone number listed in the NPPES registry for Daniel Zenk is (970) 350-2438.
- Does Daniel Zenk accept Medicare?
- Daniel Zenk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Zenk's NPI active?
- Yes — Daniel Zenk's NPI (1326026956) is active in the NPPES registry as of the last update on 2013-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.