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ALEXIS CASIMIR
NPI 1083221659
Nurse Practitioner - Acute Care in Lowell, MA

Active since September 28, 2020PECOS EnrolledAccepts Medicare Assignment
495 VARNUM AVE, LOWELL, MA 01854(978) 937-6209 Get Directions Write a Review

NPPES record last updated: June 2, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alexis Casimir NPPES

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

ALEXIS CASIMIR (NPI 1083221659) is an individual acute care provider in Lowell, Massachusetts, licensed in Massachusetts (RN2312584) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, is affiliated with Elliot Hospital, and maintains a secondary practice location in Burlington.

NPPES Registry Identity

NPI1083221659
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameALEXIS CASIMIR
Location Address495 VARNUM AVELowell, MA 01854-2123
Mailing Address349 Brook Village Rd Apt 28Nashua, NH 03062-2864 · (603) 361-7803
Phone(978) 937-6209
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateSeptember 28, 2020
Last NPPES UpdateJune 2, 2022
NPPES CertifiedJune 2, 2022
✔ NPI 1083221659 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in MA · RN2312584
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License RN2312584 (MA)
495 VARNUM AVE, Lowell, MA 01854
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Secondary Practice Location 1

Location 141 Mall RdBurlington, MA 01805-2123 · Phone (781) 744-8000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health, WellSense Health Plan.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

Alexis Casimir 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 ID1557748365
PECOS Enrollment IDI20230223000389
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

6

Medicare enrollment records show Alexis Casimir reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Novella Infusion LLC
21 mi
Internal Medicine
297 DANIEL WEBSTER HWY STE 2
Merrimack, NH 03054
  • Reassigned Medicare billing, New Hampshire enrollment
  • 23 clinicians in this Medicare group
NPI 1497364376 (603) 836-9869
Elliot Professional Services
23 mi
Internal Medicine
1070 HOLT AVE, UNIT 1, SUITE 2200
Manchester, NH 03109
  • Reassigned Medicare billing, New Hampshire enrollment
  • 446 clinicians in this Medicare group
NPI 1285627935 (603) 663-4900
Catholic Medical Center
25 mi
General Acute Care Hospital
100 MCGREGOR ST
Manchester, NH 03102
  • Reassigned Medicare billing, New Hampshire enrollment
  • 199 clinicians in this Medicare group
NPI 1427154335 (603) 668-3545
Novella Medicine Services Of Massachusetts, PLLC
33 mi
Internal Medicine
416 BELMONT ST STE 206
Worcester, MA 01604
  • Reassigned Medicare billing, Massachusetts enrollment
  • 44 clinicians in this Medicare group
NPI 1689316283 (603) 836-9869
Appledore Medical Group, Inc.
36 mi
Family Medicine
29 LAFAYETTE RD
North Hampton, NH 03862
  • Reassigned Medicare billing, New Hampshire enrollment
  • 185 clinicians in this Medicare group
NPI 1174512693 (603) 964-9370
Intensive Care Consortium Inc
1,253 mi
Specialist
20900 BISCAYNE BLVD
Aventura, FL 33180
  • Reassigned Medicare billing, New Hampshire enrollment
  • 32 clinicians in this Medicare group
NPI 1629019062 (561) 997-0821

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 5

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.

Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
29 services12 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
22 services22 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
16 services16 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
13 services13 patients
Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556
This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.
12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Elliot Hospital

Acute Care Hospitals · Manchester, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300012
Location1 Elliot WayManchester, NH 03103 · Hillsborough County
Emergency services Birthing friendly

Catholic Medical Center

Acute Care Hospitals · Manchester, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300034
Location100 Mcgregor StreetManchester, NH 03102 · Hillsborough County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01854 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

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 Alexis Casimir's NPI number?

The NPI number for Alexis Casimir is 1083221659. It was assigned to this individual provider in the NPPES registry on September 28, 2020.

Where is Alexis Casimir located?

Alexis Casimir practices at 495 Varnum Ave, Lowell, MA 01854. The listed phone number is (978) 937-6209.

What is Alexis Casimir's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Alexis Casimir enrolled in Medicare?

Yes. Alexis Casimir 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 Alexis Casimir's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexis Casimir reassigns Medicare benefits to 6 organizations: Novella Infusion LLC (Merrimack, NH), Elliot Professional Services (Manchester, NH), Catholic Medical Center (Manchester, NH), Novella Medicine Services Of Massachusetts, PLLC (Worcester, MA), Appledore Medical Group, Inc. (North Hampton, NH) and 1 more organization, 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 Alexis Casimir's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexis Casimir accept?

Health plans from Taro Health and WellSense Health Plan list Alexis Casimir 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.

Is Alexis Casimir affiliated with any hospitals?

According to CMS data, Alexis Casimir is affiliated with Elliot Hospital and Catholic Medical Center.

When was this NPI record last updated?

The NPPES record for Alexis Casimir was last updated on June 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.