Theresa Larson
NPI 1942040472 · Psychiatric/Mental Health Nurse Practitioner · Deerfield, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresa Larson is a Psychiatric/Mental Health Nurse Practitioner provider in Deerfield, IL (NPI 1942040472).
Provider details
- NPI number
- 1942040472
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 209.029761 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
2 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$170 across 7 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-05-31
- Last updated
- 2024-05-31
- Certified
- 2024-05-30
Frequently asked questions
- What is Theresa Larson's NPI number?
- Theresa Larson's National Provider Identifier (NPI) is 1942040472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Larson's specialty?
- Theresa Larson is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Theresa Larson located?
- Theresa Larson's practice location on file with NPPES is 440 Lake Cook Rd Ste 2, Deerfield, IL 60015-5263.
- What is Theresa Larson's phone number?
- The practice phone number listed in the NPPES registry for Theresa Larson is (847) 236-9310.
- Does Theresa Larson accept Medicare?
- Theresa Larson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresa Larson's NPI active?
- Yes — Theresa Larson's NPI (1942040472) is active in the NPPES registry as of the last update on 2024-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.