2026 NPPES data Physical Therapist NPI 1275115396 DPT
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Mark Perez, DPT

Physical Therapist in Warrenville, Illinois.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 255,818 in Physical Therapist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.

What the federal data shows

Mark Perez, DPT is a Physical Therapist in Warrenville, Illinois, listed in the federal CMS National Provider Identifier registry.

#2
Physical Therapist rank among Illinois specialties

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

CMS NPPES provider registry desk

NPI 1275115396 · Physical Therapist

NPI-10 · ENUM-RECENT · TAX-MEGA · RX-NONE · BOOK-MID · PHOTO-ENUM

  • NPI-10 1275115396
  • ENUM-RECENT 2021
  • TAX-MEGA 256K Physical Therapist
  • RX-NONE No Part D
  • BOOK-MID 11,752 in Illinois
  • PHOTO-ENUM Ariana Gardner · 2021

What does the federal data show about Mark Perez, DPT?

Quality data not reported

NPI registry status

Active

Issued 04/27/2021

NPI 1275115396

Primary specialty

Physical Therapist

High-volume

255,818 US NPIs in this specialty

Specialty distribution in Illinois

How Physical Therapist compares to other specialties among Illinois providers

Illinois providers
Clinical Social Worker5.2%Physical Therapist5%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.2%Pharmacist4.1%
Largest specialties in Illinois (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Physical Therapist. Verify directly:

How MIPS and board certification work

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).

Practice Address

27650 FERRY RD
Warrenville, IL 60555

Provider Details

NPI 1275115396
Specialty Physical Therapist
Credentials DPT
Gender Male
NPI Issued 04/27/2021

License & disciplinary context - Illinois IDFPR 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Mark Perez, DPT. To verify Mark Perez, DPT's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Physical Therapist Overview

How Mark Perez, DPT fits within the Physical Therapist landscape nationally.

255,818
Physical Therapist Providers in US
56
States with Physical Therapist
681
Avg Claims per Provider

Nationwide Physical Therapist peers with similar MIPS or enrollment year

Two federal-record peer sets for Perez, both outside Illinois so the neighborhoods are not geographic containment.

Same NPPES enumeration year (2021)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Nearby Physical Therapist Providers in Illinois

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

One of 11,752 Physical Therapist providers enrolled in Illinois, 5 are shown here.

Compare Physical Therapist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Mark Perez, DPT's specialty?
Mark Perez, DPT specializes in Physical Therapist and practices in Warrenville, Illinois. Credentials: DPT.
Where is Mark Perez, DPT located?
Mark Perez, DPT is located at 27650 FERRY RD, Warrenville, IL, 60555. Phone: (630) 315-1522.
What is Mark Perez, DPT's NPI number?
Mark Perez, DPT's National Provider Identifier (NPI) is 1275115396, issued on 04/27/2021.
How many Physical Therapist providers are there in the US?
There are 255,818 Physical Therapist providers across 56 states in the US. The average Physical Therapist provider writes 681 Medicare Part D claims per year.
Does Mark Perez, DPT accept Medicare?
Mark Perez, DPT appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Perez, DPT's credentials?
Mark Perez, DPT's NPI is 1275115396 with credentials DPT. 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

View source datasets and methodology notes
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.
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

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.