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

ERIN KIMBERLEY LITTLE M.D.
NPI 1770978835
Internal Medicine - Rheumatology in Boston, MA

Q: What is Erin Little's NPI number?

The NPI number for Erin Little is 1770978835. It was assigned to this individual provider in the NPPES registry on April 5, 2015.

Q: What is Erin Little's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Erin Little was last updated on July 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 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 April 05, 2015PECOS EnrolledAccepts Medicare Assignment

800 WASHINGTON ST, BOSTON, MA 02111(617) 636-5990 Get Directions Write a Review

NPPES record last updated: July 26, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Jul 26, 2026, May 27, 2020, Jan 9, 2019 and 1 more (4 updates tracked since 2018).

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About Erin Kimberley Little M.d. NPPES

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

ERIN KIMBERLEY LITTLE M.D. (NPI 1770978835) is an individual rheumatology provider in Boston, Massachusetts, licensed in Massachusetts (274549) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS, is affiliated with Newport Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1770978835

Entity TypeIndividualFemale

Primary Taxonomy207RR0500X

Provider Legal NameERIN KIMBERLEY LITTLECredential: M.D.

Location Address800 WASHINGTON STBoston, MA 02111

Mailing Address800 Washington StBoston, MA 02111-1552 · (617) 636-5990

Phone(617) 636-5990

Sole ProprietorNo

Medical School CMSOtherGraduated 2015

Enumeration DateApril 5, 2015

Last NPPES UpdateJuly 26, 20264 updates tracked since enumeration

NPPES CertifiedJuly 26, 2026

✔ NPI 1770978835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

Licenses✔ Licensed in MA · 274549✔ Licensed in RI · MD17006

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Also ListedSpecialistTaxonomy 174400000X · License MD30353 (ME)

800 WASHINGTON ST, Boston, MA 02111

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Secondary Practice Locations 3

Location 1407 East Ave Ste 250Pawtucket, RI 02860-5299 · Phone (401) 606-1620

Location 251 Sewall St Ste 1Portland, ME 04102-2697 · Phone (207) 774-5761 · Fax (207) 874-7478

Location 379 Retreat Ave, Hartford Hospital Adult Primary CareHartford, CT 06106-2527 · Phone (860) 545-0200

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Erin Kimberley Little M.d. 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 ID941512446

PECOS Enrollment IDI20200604001121

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.

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.

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.

198 services131 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

43 services35 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

16 services16 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.

15 services15 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

14 services12 patients

Hospital Affiliations CMS Care Compare 3

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

Newport Hospital

Acute Care Hospitals · Newport, RI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number410006

Location11 Friendship StreetNewport, RI 02840 · Newport County

Emergency services Birthing friendly

Rhode Island Hospital

Acute Care Hospitals · Providence, RI

3/5 CMS rating

OwnershipTribal

CMS Certification Number410007

Location593 Eddy StreetProvidence, RI 02903 · Providence County

Emergency services

The Miriam Hospital

Acute Care Hospitals · Providence, RI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number410012

Location164 Summit AvenueProvidence, RI 02906 · Providence County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02111 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.

AARON DICKSTEIN M.D.

Internal Medicine (Gastroenterology)

800 WASHINGTON ST, BOX 233
BOSTON, MA 02111

Suffolk County (617) 636-5883

THOMAS E BIGELOW

Technician/Technologist (Optician)

800 WASHINGTON ST, BOX 450
BOSTON, MA 02111

Suffolk County (617) 636-5857

SARAH MERRIMAN PERSING M.D.

Plastic Surgery