2026 NPPES data Physical Therapy Assistant NPI 1598856015 LMFT
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JONEL MIZERAK, LMFT

Physical Therapy Assistant in PLEASANT HILL, California. 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.

What the federal data shows

JONEL MIZERAK, LMFT is a Physical Therapy Assistant in PLEASANT HILL, California, listed in the federal CMS National Provider Identifier registry.

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.

What does the federal data show about JONEL MIZERAK, LMFT?

Quality data not reported

NPI registry status

Active

Issued 09/28/2006

NPI 1598856015

Primary specialty

Physical Therapy Assistant

High-volume

60,025 US NPIs in this specialty

Specialty distribution in California

How Physical Therapy Assistant compares to other specialties among California providers

California providers

Physical Therapy Assistant share within California

1. Physical Therapy Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physical Therapy Assistant share within California

Specialty board-certification context

Estimated specialty board-certified rate — Physical Therapy Assistant (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physical Therapy Assistant ABMS/AOA estimate

Est. board-certified rate (Physical Therapy Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physical Therapy Assistant) — 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).

JONEL MIZERAK, LMFT appears in the CMS NPPES registry as a Physical Therapy Assistant provider holding LMFT credentials at 101 GREGORY LN, PLEASANT HILL, CA, 94523, with a listed phone of (925) 548-8841. NPI 1598856015 was issued on 09/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MIZERAK 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Physical Therapy Assistant providers operate outside Part D entirely.

Physical Therapy Assistant is a high-volume specialty nationwide, with 60,025 enrolled providers across 55 states and an average of 704 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

101 GREGORY LN
PLEASANT HILL, CA 94523

Provider Details

NPI 1598856015
Specialty Physical Therapy Assistant
Credentials LMFT
Gender Female
NPI Issued 09/28/2006

License & disciplinary context — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to JONEL MIZERAK, LMFT. To verify JONEL MIZERAK, LMFT's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Physical Therapy Assistant Overview

How JONEL MIZERAK, LMFT fits within the Physical Therapy Assistant landscape nationally.

60,025
Physical Therapy Assistant Providers in US
55
States with Physical Therapy Assistant
704
Avg Claims per Provider

Nearby Physical Therapy Assistant Providers in California

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

Compare Physical Therapy Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is JONEL MIZERAK, LMFT's specialty?
JONEL MIZERAK, LMFT specializes in Physical Therapy Assistant and practices in PLEASANT HILL, California. Credentials: LMFT.
Where is JONEL MIZERAK, LMFT located?
JONEL MIZERAK, LMFT is located at 101 GREGORY LN, PLEASANT HILL, CA, 94523. Phone: (925) 548-8841.
What is JONEL MIZERAK, LMFT's NPI number?
JONEL MIZERAK, LMFT's National Provider Identifier (NPI) is 1598856015, issued on 09/28/2006.
How many Physical Therapy Assistant providers are there in the US?
There are 60,025 Physical Therapy Assistant providers across 55 states in the US. The average Physical Therapy Assistant provider writes 704 Medicare Part D claims per year.
Does JONEL MIZERAK, LMFT accept Medicare?
JONEL MIZERAK, LMFT appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JONEL MIZERAK, LMFT's credentials?
JONEL MIZERAK, LMFT's NPI is 1598856015 with credentials LMFT. 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.
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