2026 NPPES data Occupational Therapy Assistant NPI 1669593455 OT
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DENISE LEATHERS, OT

Occupational Therapy Assistant in PLAISTOW, New Hampshire. 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

DENISE LEATHERS, OT is a Occupational Therapy Assistant in PLAISTOW, New Hampshire, 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 DENISE LEATHERS, OT?

Quality data not reported

NPI registry status

Active

Issued 04/02/2007

NPI 1669593455

Primary specialty

Occupational Therapy Assistant

Mid-sized

40,950 US NPIs in this specialty

Specialty distribution in New Hampshire

How Occupational Therapy Assistant compares to other specialties among New Hampshire providers

New Hampshire providers

Occupational Therapy Assistant share within New Hampshire

1. Occupational Therapy Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Occupational Therapy Assistant share within New Hampshire

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Occupational 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).

DENISE LEATHERS, OT is a Occupational Therapy Assistant provider practicing in PLAISTOW, New Hampshire, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: OT. NPI: 1669593455. 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.

DENISE LEATHERS, OT appears in the CMS NPPES registry as a Occupational Therapy Assistant provider holding OT credentials at 91 MAIN ST, PLAISTOW, NH, 03865, with a listed phone of (603) 382-3031. NPI 1669593455 was issued on 04/02/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LEATHERS 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 Occupational Therapy Assistant providers operate outside Part D entirely.

Occupational Therapy Assistant is a mid-sized specialty nationwide, with 40,950 enrolled providers across 54 states and an average of 4,023 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

91 MAIN ST
PLAISTOW, NH 03865

Provider Details

NPI 1669593455
Specialty Occupational Therapy Assistant
Credentials OT
Gender Female
NPI Issued 04/02/2007

Hospital and facility affiliations

Facilities where DENISE LEATHERS, OT 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.

PREFERRED THERAPY OUTPATIENT SERVICES OF ME, LLC
CAMDEN, ME

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

Occupational Therapy Assistant Overview

How DENISE LEATHERS, OT fits within the Occupational Therapy Assistant landscape nationally.

40,950
Occupational Therapy Assistant Providers in US
54
States with Occupational Therapy Assistant
4,023
Avg Claims per Provider

Nearby Occupational Therapy Assistant Providers in New Hampshire

Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as LEATHERS.

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

Frequently Asked Questions

What is DENISE LEATHERS, OT's specialty?
DENISE LEATHERS, OT specializes in Occupational Therapy Assistant and practices in PLAISTOW, New Hampshire. Credentials: OT.
Where is DENISE LEATHERS, OT located?
DENISE LEATHERS, OT is located at 91 MAIN ST, PLAISTOW, NH, 03865. Phone: (603) 382-3031.
What is DENISE LEATHERS, OT's NPI number?
DENISE LEATHERS, OT's National Provider Identifier (NPI) is 1669593455, issued on 04/02/2007.
How many Occupational Therapy Assistant providers are there in the US?
There are 40,950 Occupational Therapy Assistant providers across 54 states in the US. The average Occupational Therapy Assistant provider writes 4,023 Medicare Part D claims per year.
Does DENISE LEATHERS, OT accept Medicare?
DENISE LEATHERS, OT appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DENISE LEATHERS, OT's credentials?
DENISE LEATHERS, OT's NPI is 1669593455 with credentials OT. 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