2026 NPPES data Occupational Therapy Assistant NPI 1043943210 COTA/L
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CHELSEA FENNER, COTA/L

Occupational Therapy Assistant in GRAND LEDGE, Michigan. 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
27
Medicare Part D claims · Occupational Therapy Assistant avg: 4K

What the federal data shows

CHELSEA FENNER, COTA/L filed 27 Medicare Part D claims in 2023 as a Occupational Therapy Assistant in GRAND LEDGE, Michigan.

27
Part D claims, 2023

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.

CHELSEA FENNER, COTA/L's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

27 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about CHELSEA FENNER, COTA/L?

Quality data not reported

NPI registry status

Active

Issued 07/06/2022

NPI 1043943210

Primary specialty

Occupational Therapy Assistant

Mid-sized

40,950 US NPIs in this specialty

Medicare Part D claims

27 99% vs specialty avg

2023 prescription claims

Specialty avg: 4,023

Specialty distribution in Michigan

How Occupational Therapy Assistant compares to other specialties among Michigan providers

Michigan providers

Occupational Therapy Assistant share within Michigan

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

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).

CHELSEA FENNER, COTA/L appears in the CMS NPPES registry as a Occupational Therapy Assistant provider holding COTA/L credentials at 4775 VILLAGE DR, GRAND LEDGE, MI, 48837, with a listed phone of (517) 898-3358. NPI 1043943210 was issued on 07/06/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FENNER 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 27 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $158 in drug spend. 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.

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

4775 VILLAGE DR
GRAND LEDGE, MI 48837

Provider Details

NPI 1043943210
Specialty Occupational Therapy Assistant
Credentials COTA/L
Gender Female
NPI Issued 07/06/2022

License & disciplinary context — Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 — they are NOT specific to CHELSEA FENNER, COTA/L. To verify CHELSEA FENNER, COTA/L's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

27
Total Claims
$158
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
27
Total Day Supply
770
Brand Drug Cost
$0
Generic Drug Cost
$158

Patient Demographics

Average Patient Age
87.0 years
Avg HCC Risk Score
1.34

Occupational Therapy Assistant Overview

How CHELSEA FENNER, COTA/L 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

CHELSEA FENNER, COTA/L's 27 claims are below the specialty average of 4,023.

Nearby Occupational Therapy Assistant Providers in Michigan

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

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

Frequently Asked Questions

What is CHELSEA FENNER, COTA/L's specialty?
CHELSEA FENNER, COTA/L specializes in Occupational Therapy Assistant and practices in GRAND LEDGE, Michigan. Credentials: COTA/L.
How much does CHELSEA FENNER, COTA/L prescribe under Medicare Part D?
In 2023, CHELSEA FENNER, COTA/L wrote 27 Medicare Part D claims totaling $158 in drug costs for N/A beneficiaries.
Where is CHELSEA FENNER, COTA/L located?
CHELSEA FENNER, COTA/L is located at 4775 VILLAGE DR, GRAND LEDGE, MI, 48837. Phone: (517) 898-3358.
What is CHELSEA FENNER, COTA/L's NPI number?
CHELSEA FENNER, COTA/L's National Provider Identifier (NPI) is 1043943210, issued on 07/06/2022.
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 CHELSEA FENNER, COTA/L accept Medicare?
CHELSEA FENNER, COTA/L appears in CMS Medicare data with 27 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHELSEA FENNER, COTA/L's credentials?
CHELSEA FENNER, COTA/L's NPI is 1043943210 with credentials COTA/L. 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