Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARISSA THOMS FNP-C
NPI 1629744180
Nurse Practitioner - Family in Aurora, IL

Q: What is Marissa Thoms's NPI number?

The NPI number for Marissa Thoms is 1629744180. It was assigned to this individual provider in the NPPES registry on August 16, 2021.

Q: What is Marissa Thoms's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Marissa Thoms was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 16, 2021PECOS EnrolledAccepts Medicare Assignment

1311 BUTTERFIELD RD STE 109, AURORA, IL 60502(312) 300-4777(888) 761-0211 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Oct 7, 2026, Dec 7, 2021, Aug 16, 2021 (3 updates tracked since 2021).

On this page

About Marissa Thoms Fnp-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARISSA THOMS FNP-C (NPI 1629744180) is an individual family provider in Aurora, Illinois, licensed in Illinois (209021910) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1629744180

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMARISSA THOMSCredential: FNP-C

Location Address1311 BUTTERFIELD RD STE 109Aurora, IL 60502-8945

Mailing Address5 E Sandstone CtSouth Elgin, IL 60177-3260

Phone(312) 300-4777

Fax(888) 761-0211

Sole ProprietorNo

Medical School CMSOtherGraduated 2020

Enumeration DateAugust 16, 2021

Last NPPES UpdateOctober 7, 20263 updates tracked since enumeration

NPPES CertifiedOctober 7, 2026

✔ NPI 1629744180 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in IL · 209021910

1311 BUTTERFIELD RD STE 109, Aurora, IL 60502

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1129 W Rand RdArlington Heights, IL 60004-3142 · Phone (312) 300-4777 · Fax (888) 761-0211

Location 29933 Lawler AveSkokie, IL 60077-3703 · Phone (312) 300-4777 · Fax (888) 761-0211

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Marissa Thoms Fnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4385040690

PECOS Enrollment IDI20210913002117

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Marissa Thoms reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lifetime Health & Wellness Center Sc

13 mi

Chiropractor

101 S MCLEAN BLVD STE A
South Elgin, IL 60177

Reassigned Medicare billing, Illinois enrollment
7 clinicians in this Medicare group

NPI 1104040179 (847) 717-3400

Next Generation MD Of South Elgin Inc.

13 mi

Family

101 S MCLEAN BLVD STE C
South Elgin, IL 60177

Reassigned Medicare billing, Illinois enrollment
7 clinicians in this Medicare group

NPI 1740705334 (847) 717-3400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Infusion into a vein for therapy, prevention, or diagnosis, each additional hour 96366

This procedure involves delivering medication, fluids, or nutrients directly into your vein. This is done to treat, prevent, or diagnose various conditions. Each additional hour refers to the extended time you may need to receive these substances for optimal results.

387 services11 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

199 services11 patients

Refilling and maintenance of portable pump 96521

Refilling and maintenance of a portable pump involves replenishing the medication contained within the pump and ensuring its functionality. This process includes checking battery life, inspecting for damages, and cleaning the device for optimal performance. It's essential to maintain a clean, functional pump for effective treatment.

199 services11 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

196 services11 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

69 services43 patients

Injection of trigger points, 3 or more muscles 20553

Trigger point injection therapy involves injecting medication into specific areas of your muscles, known as trigger points. These are areas that produce pain and discomfort. If you have three or more muscles affected, each will be treated individually.

42 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60502 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$93.02 typical visit price

range $59.81 – $181.38

Typical copayment $23.25 (range $14.95 – $45.34)

Most-billed visit code 99203

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CONNOR ALEXANDER FARRELLY DC

Chiropractor

1311 BUTTERFIELD RD STE 109
AURORA, IL 60502

Dupage County (630) 506-8804

FARRELLY FAMILY LLC

Chiropractor

1311 BUTTERFIELD RD STE 109
AURORA, IL 60502

Dupage County (630) 506-8804

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marissa Thoms's NPI number?

The NPI number for Marissa Thoms is 1629744180. It was assigned to this individual provider in the NPPES registry on August 16, 2021.

Where is Marissa Thoms located?

Marissa Thoms practices at 1311 Butterfield Rd Ste 109, Aurora, IL 60502. The listed phone number is (312) 300-4777.

What is Marissa Thoms's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marissa Thoms enrolled in Medicare?

Yes. Marissa Thoms is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Marissa Thoms's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Thoms reassigns Medicare benefits to 2 organizations: Lifetime Health & Wellness Center Sc (South Elgin, IL) and Next Generation MD Of South Elgin Inc. (South Elgin, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marissa Thoms's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marissa Thoms was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.