CARRIE ELIZABETH GRASSI NP
NPI 1093001646
Nurse Practitioner - Adult Health in Wallingford, CT

Active since June 22, 2011PECOS EnrolledAccepts Medicare Assignment
35 THORPE AVE STE 104, WALLINGFORD, CT 06492(203) 779-5799 Get Directions Write a Review

NPPES record last updated: October 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 9, 2025, Feb 12, 2025 (2 updates tracked since 2025).

About Carrie Elizabeth Grassi Np NPPES

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

CARRIE ELIZABETH GRASSI NP (NPI 1093001646) is an individual adult health provider in Wallingford, Connecticut, licensed in New Hampshire (060155-23) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1093001646
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameCARRIE ELIZABETH GRASSICredential: NP
Location Address35 THORPE AVE STE 104Wallingford, CT 06492-1948
Mailing Address35 Thorpe Ave Ste 104Wallingford, CT 06492-1948 · (203) 779-5799 · Fax (401) 267-1169
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateJune 22, 2011
Last NPPES UpdateOctober 9, 20252 updates tracked since enumeration
NPPES CertifiedOctober 9, 2025
✔ NPI 1093001646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
Licenses✔ Licensed in NH · 060155-23✔ Licensed in IN · 71011618A✔ Licensed in CT · 9966✔ Licensed in OH · 0036201✔ Licensed in FL · APRN11010269✔ Licensed in KY · 4018490✔ Licensed in VA · 0024189566✔ Licensed in ME · CNP201417✔ Licensed in GA · GAA-NP002226✔ Licensed in MA · RN284637
35 THORPE AVE STE 104, Wallingford, CT 06492

Accepted Insurance

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

Carrie Elizabeth Grassi Np 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 ID8022282649
PECOS Enrollment IDI20260331000855, I20260401001205
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

9

Medicare enrollment records show Carrie Grassi reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rehabilitation, Substance Use Disorder
35 THORPE AVE STE 104
Wallingford, CT 06492
  • Reassigned Medicare billing, Connecticut enrollment
  • 11 clinicians in this Medicare group
Substance Abuse Rehabilitation Facility
276 TURNPIKE RD STE 221
Westborough, MA 01581
  • Reassigned Medicare billing, Massachusetts enrollment
  • 9 clinicians in this Medicare group
Substance Abuse Rehabilitation Facility
500 SOUTHBOROUGH DR STE 500-202
South Portland, ME 04106
  • Reassigned Medicare billing, Maine enrollment
  • 13 clinicians in this Medicare group
Substance Abuse Rehabilitation Facility
4405 COX RD
Glen Allen, VA 23060
  • Reassigned Medicare billing, Virginia enrollment
  • 10 clinicians in this Medicare group
Addiction Medicine
6161 OAK TREE BLVD STE 130
Independence, OH 44131
  • Reassigned Medicare billing, Ohio enrollment
  • 12 clinicians in this Medicare group
Substance Abuse Rehabilitation Facility
6505 E. 82ND STREET, #120
Indianapolis, IN 46250
  • Reassigned Medicare billing, Indiana enrollment
  • 10 clinicians in this Medicare group
Substance Abuse Rehabilitation Facility
7400 NEW LA GRANGE RD STE 250
Louisville, KY 40222
  • Reassigned Medicare billing, Kentucky enrollment
  • 11 clinicians in this Medicare group
Substance Abuse Rehabilitation Facility
1775 THE EXCHANGE SE STE 610
Atlanta, GA 30339
  • Reassigned Medicare billing, Georgia enrollment
  • 8 clinicians in this Medicare group
Substance Abuse Rehabilitation Facility
1625 S CONGRESS AVE STE 406
Delray Beach, FL 33445
  • Reassigned Medicare billing, Florida enrollment
  • 7 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06492 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
$93.86 typical visit price
range $60.82 – $183.10
Typical copayment $23.46 (range $15.20 – $45.77)
Most-billed visit code 99203
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%305 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 4

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

Registered Nurse
35 THORPE AVE STE 104
WALLINGFORD, CT 06492
Social Worker (Clinical)
35 THORPE AVE STE 104
WALLINGFORD, CT 06492
Social Worker (Clinical)
35 THORPE AVE STE 104
WALLINGFORD, CT 06492
Clinic/Center (Rehabilitation, Substance Use Disorder)
35 THORPE AVE STE 104
WALLINGFORD, CT 06492

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 Carrie Grassi's NPI number?

The NPI number for Carrie Grassi is 1093001646. It was assigned to this individual provider in the NPPES registry on June 22, 2011.

Where is Carrie Grassi located?

Carrie Grassi practices at 35 Thorpe Ave Ste 104, Wallingford, CT 06492. The listed phone number is (203) 779-5799.

What is Carrie Grassi's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Carrie Grassi enrolled in Medicare?

Yes. Carrie Grassi 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 Carrie Grassi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carrie Grassi reassigns Medicare benefits to 9 organizations: Arc In Home Addiction Treatment, P.C. (Wallingford, CT), Aware Recovery Care Of Massachusetts, LLC (Westborough, MA), Aware Recovery Care Of Maine LLC (South Portland, ME), Aware Recovery Care Of Virginia, PC (Glen Allen, VA), Aware Recovery Care Of Ohio,inc. (Independence, OH) and 4 more organizations, listed in the Medicare section above. 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 Carrie Grassi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Carrie Grassi accept?

Health plans from Anthem Blue Cross and Blue Shield, Cigna HealthCare of Florida, Inc., Cigna Healthcare and MedMutual list Carrie Grassi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Carrie Grassi was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.