Douglas Mazurek, M.D.
NPI 1033223235 · Specialist · Valparaiso, IN
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Mazurek, M.D. is a Specialist provider in Valparaiso, IN (NPI 1033223235).
Provider details
- NPI number
- 1033223235
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 01038566 (IN)
Specialties & taxonomies
Other Service Providers
Allopathic & Osteopathic Physicians
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
2,038 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 891 | $73 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 269 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 176 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 149 | $83 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 87 | $9 |
| Test to Examine How Well the Lungs Exchange Gases94729 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 86 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 350 | 114 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 291 | 102 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 254 | 76 |
| Doxycycline Hyclate | 177 | 70 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 173 | 16 |
| Montelukast Sodium | 135 | 39 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$495 across 21 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
- 2006-08-18
- Last updated
- 2020-09-11
- Certified
- 2020-09-11
Frequently asked questions
- What is Douglas Mazurek's NPI number?
- Douglas Mazurek's National Provider Identifier (NPI) is 1033223235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Mazurek's specialty?
- Douglas Mazurek is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Douglas Mazurek located?
- Douglas Mazurek's practice location on file with NPPES is 1101 Glendale Blvd, Valparaiso, IN 46383-3767.
- What is Douglas Mazurek's phone number?
- The practice phone number listed in the NPPES registry for Douglas Mazurek is (219) 464-9054.
- Does Douglas Mazurek accept Medicare?
- Douglas Mazurek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Mazurek's NPI active?
- Yes — Douglas Mazurek's NPI (1033223235) is active in the NPPES registry as of the last update on 2020-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.