John Dzik, DO
NPI 1659339950 · Family Medicine Physician · Amarillo, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Dzik, DO is a Family Medicine Physician provider in Amarillo, TX (NPI 1659339950).
Provider details
- NPI number
- 1659339950
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- H7011 (TX)
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
449 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 175 | $66 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 153 | $70 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 121 | $66 |
Typical Medicare-allowed amounts for these services range $66–$70 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 169 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 658 | 104 |
| Atorvastatin Calcium | 648 | 110 |
| Levothyroxine Sodium | 559 | 82 |
| Apixabanbrand: Eliquis | 532 | 58 |
| Potassium Chloride | 487 | 107 |
| Amlodipine Besylate | 392 | 66 |
| Lisinopril | 385 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-03
- Last updated
- 2024-08-22
- Certified
- 2024-08-22
Frequently asked questions
- What is John Dzik's NPI number?
- John Dzik's National Provider Identifier (NPI) is 1659339950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Dzik's specialty?
- John Dzik is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Dzik located?
- John Dzik's practice location on file with NPPES is 5211 Sw 9th Ave, Amarillo, TX 79106-4120.
- What is John Dzik's phone number?
- The practice phone number listed in the NPPES registry for John Dzik is (806) 356-0026.
- Does John Dzik accept Medicare?
- John Dzik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Dzik's NPI active?
- Yes — John Dzik's NPI (1659339950) is active in the NPPES registry as of the last update on 2024-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.