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MS. CHRISTINE MARIE LARSEN MSNRN, CPNP-PC
NPI 1780121293
Nurse Practitioner in Bedford, MA

Active since January 22, 2017PECOS Enrolled
74 LOOMIS ST, BEDFORD, MA 01730(781) 674-2900 Get Directions Write a Review

NPPES record last updated: March 11, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 11, 2026, Mar 17, 2018, Dec 7, 2017 and 1 more (4 updates tracked since 2017).

About Ms. Christine Marie Larsen Msnrn, Cpnp-pc NPPES

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

MS. CHRISTINE MARIE LARSEN MSNRN, CPNP-PC (NPI 1780121293) is an individual nurse practitioner in Bedford, Massachusetts, licensed in Massachusetts (283535) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1780121293
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. CHRISTINE MARIE LARSENCredential: MSNRN, CPNP-PC
Location Address74 LOOMIS STBedford, MA 01730-2248
Mailing Address55 Fruit StBoston, MA 02114-2621 · (781) 674-2900 · Fax (781) 275-0688
Phone(781) 674-2900
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJanuary 22, 2017
Last NPPES UpdateMarch 11, 20264 updates tracked since enumeration
NPPES CertifiedMarch 11, 2026
✔ NPI 1780121293 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MA · 283535
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered Nurse · PediatricsTaxonomy 163WP0200X · License 283535 (MA)
74 LOOMIS ST, Bedford, MA 01730
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Secondary Practice Location 1

Location 155 Fruit StBoston, MA 02114-2621 · Phone (617) 726-2000

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Christine Marie Larsen Msnrn, Cpnp-pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8022590470
PECOS Enrollment IDI20260304003233
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

2

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

Massachusetts General Physicians Organization Inc
14 mi
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287
The General Hospital Corporation
14 mi
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000

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 01730 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.

Other Providers at the Same Location NPPES 3

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

MRS. TARA LEE STEVENS MSN, CPNP
Nurse Practitioner (Pediatrics)
74 LOOMIS ST
BEDFORD, MA 01730
Middlesex County (781) 674-2900
PATRIOT PEDIATRICS
Pediatrics (Adolescent Medicine)
74 LOOMIS ST
BEDFORD, MA 01730
Middlesex County (781) 674-2900
CARISSA GLAVINE N.P.
Registered Nurse (Pediatrics)
74 LOOMIS ST
BEDFORD, MA 01730
Middlesex County (781) 674-2900

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 Christine Larsen's NPI number?

The NPI number for Christine Larsen is 1780121293. It was assigned to this individual provider in the NPPES registry on January 22, 2017.

Where is Christine Larsen located?

Christine Larsen practices at 74 Loomis St, Bedford, MA 01730. The listed phone number is (781) 674-2900.

What is Christine Larsen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Christine Larsen enrolled in Medicare?

Yes. Christine Larsen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Christine Larsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christine Larsen reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). 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 Christine Larsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Christine Larsen accept?

Health plans from Taro Health list Christine Larsen 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 Christine Larsen was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.