Marek Marcinkiewicz, MD
NPI 1891951828 · Family Medicine Physician · Fort Defiance, AZ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marek Marcinkiewicz, MD is a Family Medicine Physician provider in Fort Defiance, AZ (NPI 1891951828).
Provider details
- NPI number
- 1891951828
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60418687 (WA)
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
17 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
217 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 | 148 | $93 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 58 | $63 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 11 | $138 |
Typical Medicare-allowed amounts for these services range $63–$138 (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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lisinopril | 216 | 51 |
| Alcohol Antiseptic Padsbrand: Single Use Swab | 126 | 44 |
| Levothyroxine Sodiumbrand: Synthroid | 94 | 14 |
| Atorvastatin Calcium | 93 | 27 |
| Omeprazole | 78 | 20 |
| Simvastatin | 70 | 15 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-30
- Last updated
- 2016-12-16
Frequently asked questions
- What is Marek Marcinkiewicz's NPI number?
- Marek Marcinkiewicz's National Provider Identifier (NPI) is 1891951828, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marek Marcinkiewicz's specialty?
- Marek Marcinkiewicz is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marek Marcinkiewicz located?
- Marek Marcinkiewicz's practice location on file with NPPES is Corner of Route N7 & N12, Fort Defiance, AZ 86504.
- What is Marek Marcinkiewicz's phone number?
- The practice phone number listed in the NPPES registry for Marek Marcinkiewicz is (928) 729-8130.
- Does Marek Marcinkiewicz accept Medicare?
- Marek Marcinkiewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marek Marcinkiewicz's NPI active?
- Yes — Marek Marcinkiewicz's NPI (1891951828) is active in the NPPES registry as of the last update on 2016-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.