Darek Maciasz, R.PH
NPI 1891079463 · Pharmacist · Mt Prospect, IL
Darek Maciasz, R.PH is a Pharmacist provider in Mt Prospect, IL (NPI 1891079463).
Provider details
- NPI number
- 1891079463
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- R.PH
- Sex
- Male
- Sole proprietor
- No
- License
- 051288015 (IL)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Varicella-Zoster Ge/As01b/Pfbrand: Shingrix | 34 | 28 |
| Rsvpref3 Antigen/As01e/Pfbrand: Arexvy | 33 | 33 |
| Diphth,pertuss(acell),tet Vacbrand: Boostrix Tdap | 20 | 20 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-09-30
- Last updated
- 2011-09-30
Frequently asked questions
- What is Darek Maciasz's NPI number?
- Darek Maciasz's National Provider Identifier (NPI) is 1891079463, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darek Maciasz's specialty?
- Darek Maciasz is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Darek Maciasz located?
- Darek Maciasz's practice location on file with NPPES is 999 N Elmhurst Rd, Mt Prospect, IL 60056-1135.
- What is Darek Maciasz's phone number?
- The practice phone number listed in the NPPES registry for Darek Maciasz is (847) 660-2028.
- Is Darek Maciasz's NPI active?
- Yes — Darek Maciasz's NPI (1891079463) is active in the NPPES registry as of the last update on 2011-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.