NPI registry status
Active
2026 NPPES data Pediatric Occupational Therapist NPI 1184897589 OTR/L
Verify on CMS → Karissa Null, OTR/L
Pediatric Occupational Therapist in Wilmington, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 14,693 in Pediatric Occupational 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
Karissa Null, OTR/L is a Pediatric Occupational Therapist in Wilmington, Delaware, listed in the federal CMS National Provider Identifier registry.
- #89
- Pediatric Occupational Therapist rank among Delaware 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.
Federal trust snapshot
What official records show about Karissa Null, OTR/L
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1184897589), first enumerated 04/07/2008.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
Compare Null with other Pediatric Occupational Therapist providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Delaware
- Megan Atkinson Odessa, DE
- Angela Carlini, COTA/L Bear, DE
- Rachel Denis, MS, OTR/L Bear, DE
- Allison Dicarlo, M.S., OTR L Seaford, DE
- Amanda Dilts, OTR/L New Castle, DE
- Nicole Don Middletown, DE
Other specialties in Wilmington: Physical Therapist (325) · Clinical Social Worker (322) · Student in an Organized Health Care Education/Training Program (295) · Addiction (Substance Use Disorder) Counselor (292)
CMS NPPES provider registry desk
NPI 1184897589 · Pediatric Occupational Therapist
NPI-10 · ENUM-MID · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1184897589
- ENUM-MID 2008
- TAX-MID 15K Pediatric Occupational
- RX-NONE No Part D
- BOOK-THIN 26 in Delaware
- PHOTO-ENUM Mary Wergeland, O.T. · 2008
What does the federal data show about Karissa Null, OTR/L?
Quality data not reportedPrimary specialty
Pediatric Occupational Therapist
Specialty distribution in Delaware
How Pediatric Occupational Therapist compares to other specialties among Delaware 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 Pediatric Occupational 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
Provider Details
| NPI | 1184897589 |
|---|---|
| Specialty | Pediatric Occupational Therapist |
| Credentials | OTR/L |
| Gender | Female |
| NPI Issued | 04/07/2008 |
Pediatric Occupational Therapist Overview
How Karissa Null, OTR/L fits within the Pediatric Occupational Therapist landscape nationally.
14,693
Pediatric Occupational Therapist Providers in US
54
States with Pediatric Occupational Therapist
123
Avg Claims per Provider
Nationwide Pediatric Occupational Therapist peers with similar MIPS or enrollment year
Two federal-record peer sets for Null, both outside Delaware so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pediatric Occupational Therapist Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Null.
One of 26 Pediatric Occupational Therapist providers enrolled in Delaware, 11 are shown on this page.
Jacqueline Ford
MOT, OTR/L
Wilmington, DE
Danielle Freeman
MSOTR/L
Dover, DE
Emilee Fromal
OTR/L
New Castle, DE
Natalie Fryling
OTR/L
Magnolia, DE
Stefanie Garner
OTR/L
Hockessin, DE
Compare Pediatric Occupational Therapist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Karissa Null, OTR/L's specialty? ▼
Karissa Null, OTR/L specializes in Pediatric Occupational Therapist and practices in Wilmington, Delaware. Credentials: OTR/L.
Where is Karissa Null, OTR/L located? ▼
Karissa Null, OTR/L is located at 812 PHILADELPHIA PIKE, Wilmington, DE, 19809. Phone: (302) 543-5463.
What is Karissa Null, OTR/L's NPI number? ▼
Karissa Null, OTR/L's National Provider Identifier (NPI) is 1184897589, issued on 04/07/2008.
How many Pediatric Occupational Therapist providers are there in the US? ▼
There are 14,693 Pediatric Occupational Therapist providers across 54 states in the US. The average Pediatric Occupational Therapist provider writes 123 Medicare Part D claims per year.
Does Karissa Null, OTR/L accept Medicare? ▼
Karissa Null, OTR/L appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karissa Null, OTR/L's credentials? ▼
Karissa Null, OTR/L's NPI is 1184897589 with credentials OTR/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
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 August 2026 (NPPES) / 2024 (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 August 2026.