NPPES file of Aug 9, 2026

Douglas Adolph Mazurek, M.D.

Specialist · Valparaiso, IN

Douglas Adolph Mazurek, M.D. is a specialist with a practice address in Valparaiso, Indiana, and NPI 1033223235, issued on Aug 18, 2006. Check the license (Indiana 01038566A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033223235
Name
Douglas Adolph Mazurek
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License numbers
01038566A IN
01038566 IN
Self-reported in NPPES; status is on the state search
Practice location
1101 Glendale Blvd, Valparaiso, IN 46383
Phone
(219) 464-9054
Enumerated
Aug 18, 2006
Record last updated
Sep 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(219) 465-1749
Medicaid ID
200016720 IN
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1101 Glendale Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. James Anthony, MDPulmonary Disease Physician1639356025
  2. Elizabeth Campbell, MDPediatrics Physician1528230133
  3. Mitchell Mazurek, MDPhysical Medicine & Rehabilitation Physician1043259328
  4. Subba Nagubadi, MDUrology Physician1417957457
  5. Norma Ramey, M.D.Critical Care Medicine (Internal Medicine) Physician1831332766
  6. Rhondalynn Sears, NPPediatric Nurse Practitioner1760401368

Verify Douglas Adolph Mazurek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 01038566A
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Indiana license search

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3.3 times the Medicare Part D claims of the average specialist in 2024

4,485 Medicare Part D claims for 332 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 175 claims were for opioids.

  1. Douglas Mazurek4,485
  2. Specialty average1,380

Most prescribed

  1. Prednisone350 claims
  2. Albuterol Sulfate Hfa291 claims
  3. Trelegy Ellipta254 claims
  4. Doxycycline Hyclate177 claims
  5. Hydrocodone-Acetaminophen173 claims
  6. Montelukast Sodium135 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 88 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $494.93

21 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Douglas Mazurek$494.93
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Douglas Adolph Mazurek among 408 specialist records in Indiana

Douglas Adolph Mazurek, M.D. is one of 408 specialist records with a practice address in Indiana. 24% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.

  • NPI issued2006 · 12% of these records are older, 53% newer
  • In a Medicare fileYes · 24% of these records are
  • In the CMS Doctors and Clinicians fileNo · 15% of these records are
  • Record last updated2020 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Indiana

There are 408 specialist records in Indiana.

The 8 specialist records with the nearest ZIP codes

  1. Randi Light, MSValparaiso, IN 463831235586660
  2. Alexander PorucznikValparaiso, IN 463831952943649
  3. Gustavo Galante, M.D.Schererville, IN 463751073736237
  4. Margaret Pachowicz, O.T.Schererville, IN 463751124231055
  5. Kimberly StreetsWestville, IN 463911780814483
  6. Kathryn Dittmer, DVMPortage, IN 463681679010342
  7. Tara Howell, PTAPortage, IN 463681841473576
  8. Douge Barthelemy, M.D.Gary, IN 464021942313366

Common questions

What is Douglas Adolph Mazurek, M.D.'s NPI number?

Douglas Adolph Mazurek, M.D.'s National Provider Identifier (NPI) is 1033223235, issued on Aug 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Douglas Adolph Mazurek, M.D. located?

The NPPES record lists a practice address at 1101 Glendale Blvd, Valparaiso, IN, 46383. Phone: (219) 464-9054. Providers update this record themselves, so call before visiting.

How can I verify Douglas Adolph Mazurek, M.D.'s license?

NPPES lists Indiana license number 01038566A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

How much does Douglas Adolph Mazurek, M.D. prescribe under Medicare Part D?

In 2024, Douglas Adolph Mazurek, M.D. had 4,485 Medicare Part D claims for 332 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

What is Douglas Adolph Mazurek, M.D.'s MIPS final score?

The 2023 MIPS final score is 88 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.