DR. ELIZABETH LODER MD
NPI 1881684157
Internal Medicine in Boston, MA

Q: What is Elizabeth Loder's NPI number?

The NPI number for Elizabeth Loder is 1881684157. It was assigned to this individual provider in the NPPES registry on October 26, 2005.

Q: What is Elizabeth Loder's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Elizabeth Loder was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since October 26, 2005PECOS EnrolledAccepts Medicare Assignment

125 NASHUA ST, BOSTON, MA 02114(615) 573-2493(617) 573-7119 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Elizabeth Loder Md NPPES

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

DR. ELIZABETH LODER MD (NPI 1881684157) is an individual internal medicine provider in Boston, Massachusetts, licensed in Massachusetts (58787) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, is affiliated with Faulkner Hospital-brigham And Women's, and is a graduate of University Of North Dakota School Of Medicine (1985).

NPPES Registry Identity

NPI1881684157

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameDR. ELIZABETH LODERCredential: MD

Location Address125 NASHUA STBoston, MA 02114-1101

Mailing AddressPo Box 9142Charlestown, MA 02129-9142 · (617) 724-0287 · Fax (617) 726-2894

Phone(615) 573-2493

Fax(617) 573-7119

Sole ProprietorNo

Medical School CMSUniversity Of North Dakota School Of MedicineGraduated 1985

Enumeration DateOctober 26, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1881684157 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MA · 58787

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

125 NASHUA ST, Boston, MA 02114

Open in Google Maps ↗

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

Dr. Elizabeth Loder Md 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 ID9234196726

PECOS Enrollment IDI20041216000311

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 Reassignment

Medicare enrollment records show Elizabeth Loder reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Brigham & Womens Physicians Organization Inc

3.1 mi

Internal Medicine

75 FRANCIS ST
Boston, MA 02115

Reassigned Medicare billing, Massachusetts enrollment
4,574 clinicians in this Medicare group

NPI 1033535497 (617) 732-5500

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 2

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.

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.

24 services16 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.

20 services15 patients

Hospital Affiliations CMS Care Compare

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

Faulkner Hospital-Brigham And Women's

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220119

Location1153 Centre StreetBoston, MA 02130 · Suffolk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

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 20

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

DR. MURDO M. DOWDS JR. PH.D.

Clinical Neuropsychologist

125 NASHUA ST
BOSTON, MA 02114

Suffolk County (617) 573-2574

DR. MELISSA HOOVER PHARMD

Pharmacist

125 NASHUA ST
BOSTON, MA 02114

Suffolk County (617) 724-8731

DR. GERALD I KASSELS M.D.

Internal Medicine

125 NASHUA ST
BOSTON, MA 02114

Suffolk County (616) 573-7110

CARINNE CALLAHAN

Physical Therapist

125 NASHUA ST
BOSTON, MA 02114

Suffolk County (617) 573-2990

DR. DAVID M CRANDELL MD

Physical Medicine & Rehabilitation

125 NASHUA ST
BOSTON, MA 02114

Suffolk County (617) 573-2200

DR. RANDIE M BLACK-SCHAFFER MD

Physical Medicine & Rehabilitation

125 NASHUA ST, SRH
BOSTON, MA 02114

Suffolk County (617) 573-2770

DR. KAAREN ELIZABETH BEKKEN PHD

Psychologist

125 NASHUA ST, SRH SPAULDING REHAB HOSPITAL
BOSTON, MA 02114

Suffolk County (617) 573-2643

DR. JOSEPH THOMAS GIACINO PH.D.

Clinical Neuropsychologist

125 NASHUA ST
BOSTON, MA 02114

Suffolk County (617) 573-2757

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 Elizabeth Loder's NPI number?

The NPI number for Elizabeth Loder is 1881684157. It was assigned to this individual provider in the NPPES registry on October 26, 2005.

Where is Elizabeth Loder located?

Elizabeth Loder practices at 125 Nashua St, Boston, MA 02114. The listed phone number is (615) 573-2493.

What is Elizabeth Loder's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Elizabeth Loder enrolled in Medicare?

Yes. Elizabeth Loder 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 organization bills Medicare for Elizabeth Loder's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Loder reassigns Medicare benefits to Brigham & Womens Physicians Organization Inc (Boston, MA). The 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 Elizabeth Loder's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Elizabeth Loder affiliated with any hospitals?

According to CMS data, Elizabeth Loder is affiliated with Faulkner Hospital-Brigham And Women's.

When was this NPI record last updated?

The NPPES record for Elizabeth Loder was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.