2026 NPPES data Rehabilitation Practitioner NPI 1043259328 MD
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MITCHELL MAZUREK, MD

Rehabilitation Practitioner in VALPARAISO, Indiana. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
413
Medicare Part D claims · 139 beneficiaries · Rehabilitation Practitioner avg: 543
What the federal data reveals: MITCHELL MAZUREK, MD is a Rehabilitation Practitioner ([object Object]) practicing in VALPARAISO, Indiana with a Medicare Part D prescribing footprint of 413 claims across 139 beneficiaries .

What stands out: MITCHELL MAZUREK, MD filed 413 Medicare Part D claims in 2023 across VALPARAISO, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MITCHELL MAZUREK, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/05/2006

NPI 1043259328

Primary specialty

Rehabilitation Practitioner

Mid-sized

18,261 US NPIs in this specialty

Medicare Part D claims

413 24% vs specialty avg

2023 prescription claims

Specialty avg: 543

Specialty distribution in Indiana

How Rehabilitation Practitioner compares to other specialties among Indiana providers

Indiana providers

Rehabilitation Practitioner share within Indiana

1. Rehabilitation Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Rehabilitation Practitioner share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Rehabilitation Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Rehabilitation Practitioner ABMS/AOA estimate

Est. board-certified rate (Rehabilitation Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Rehabilitation Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MITCHELL MAZUREK, MD is a Rehabilitation Practitioner provider practicing in VALPARAISO, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1043259328. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MITCHELL MAZUREK, MD appears in the CMS NPPES registry as a Rehabilitation Practitioner provider holding MD credentials at 1101 GLENDALE BLVD, VALPARAISO, IN, 46383, with a listed phone of (219) 464-2907. NPI 1043259328 was issued on 06/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAZUREK most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 413 prescription claims written by this provider, covering 139 Medicare beneficiaries and totaling roughly $17K in drug spend, with an opioid prescribing rate of 8.0%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Rehabilitation Practitioner is a mid-sized specialty nationwide, with 18,261 enrolled providers across 51 states and an average of 543 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1101 GLENDALE BLVD
VALPARAISO, IN 46383

Provider Details

NPI 1043259328
Specialty Rehabilitation Practitioner
Credentials MD
Gender Male
NPI Issued 06/05/2006

Hospital and facility affiliations

Facilities where MITCHELL MAZUREK, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CHESTERTON PHYSICAL THERAPY INC
CHESTERTON, IN
RCI (WRS) LLC
VALPARAISO, IN

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

413
Total Claims
$17K
Total Drug Cost
139
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
445
Total Day Supply
10,885
Generic Drug Cost
$5K
Opioid Claims
33 (8.0% rate)
Antibiotic Claims
27

Patient Demographics

Average Patient Age
76.3 years
Avg HCC Risk Score
2.25
Gender Split
47% female / 53% male
Age Distribution
<65: 15, 65-74: 37, 75-84: 55, 85+: 32

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
25
Pantoprazole Sodium
25
Atorvastatin Calcium
23
Furosemide
20
Clopidogrel
Clopidogrel Bisulfate
18
Metoprolol Succinate
12
Metoprolol Tartrate
12
Eliquis
Apixaban
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Rehabilitation Practitioner Overview

How MITCHELL MAZUREK, MD fits within the Rehabilitation Practitioner landscape nationally.

18,261
Rehabilitation Practitioner Providers in US
51
States with Rehabilitation Practitioner
543
Avg Claims per Provider

MITCHELL MAZUREK, MD's 413 claims are below the specialty average of 543.

Nearby Rehabilitation Practitioner Providers in Indiana

Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as MAZUREK.

Compare Rehabilitation Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is MITCHELL MAZUREK, MD's specialty?
MITCHELL MAZUREK, MD specializes in Rehabilitation Practitioner and practices in VALPARAISO, Indiana. Credentials: MD.
How much does MITCHELL MAZUREK, MD prescribe under Medicare Part D?
In 2023, MITCHELL MAZUREK, MD wrote 413 Medicare Part D claims totaling $17K in drug costs for 139 beneficiaries.
Where is MITCHELL MAZUREK, MD located?
MITCHELL MAZUREK, MD is located at 1101 GLENDALE BLVD, VALPARAISO, IN, 46383. Phone: (219) 464-2907.
What is MITCHELL MAZUREK, MD's NPI number?
MITCHELL MAZUREK, MD's National Provider Identifier (NPI) is 1043259328, issued on 06/05/2006.
Does MITCHELL MAZUREK, MD prescribe opioids?
Yes, MITCHELL MAZUREK, MD had 33 opioid claims in 2023 with an opioid prescribing rate of 8.0%.
How many Rehabilitation Practitioner providers are there in the US?
There are 18,261 Rehabilitation Practitioner providers across 51 states in the US. The average Rehabilitation Practitioner provider writes 543 Medicare Part D claims per year.
What drugs does MITCHELL MAZUREK, MD prescribe most often?
Based on 2023 Medicare Part D data, MITCHELL MAZUREK, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Pantoprazole Sodium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MITCHELL MAZUREK, MD accept Medicare?
MITCHELL MAZUREK, MD appears in CMS Medicare data with 413 Part D claims and 139 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MITCHELL MAZUREK, MD's credentials?
MITCHELL MAZUREK, MD's NPI is 1043259328 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology