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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
Specialist in Portland, ME

Active since April 05, 2015PECOS EnrolledAccepts Medicare Assignment
51 SEWALL ST STE 1, PORTLAND, ME 04102(207) 774-5761(207) 874-7478 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 23, 2026, Jul 26, 2026, May 27, 2020 and 2 more (5 updates tracked since 2018).

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 specialist in Portland, Maine, licensed in Maine (MD30353) 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 Taxonomy174400000X
Provider Legal NameERIN KIMBERLEY LITTLECredential: M.D.
Location Address51 SEWALL ST STE 1Portland, ME 04102-2697
Mailing Address800 Washington StBoston, MA 02111-1552 · (617) 636-5990
Phone(207) 774-5761
Fax(207) 874-7478
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 5, 2015
Last NPPES UpdateSeptember 23, 20265 updates tracked since enumeration
NPPES CertifiedSeptember 23, 2026
✔ NPI 1770978835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in ME · MD30353
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Also ListedInternal Medicine · RheumatologyTaxonomy 207RR0500X · License MD17006 (RI), 274549 (MA)
51 SEWALL ST STE 1, Portland, ME 04102
Open in Google Maps ↗

Secondary Practice Locations 3

Location 179 Retreat Ave, Hartford Hospital Adult Primary CareHartford, CT 06106-2527 · Phone (860) 545-0200
Location 2407 East Ave Ste 250Pawtucket, RI 02860-5299 · Phone (401) 606-1620
Location 3800 Washington StBoston, MA 02111 · Phone (617) 636-5990

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

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.

Medicare Billing Reassignments

2

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

Lifespan Physician Group, Inc.
132 mi
Surgery
2 DUDLEY ST STE 470
Providence, RI 02905
  • Reassigned Medicare billing, Rhode Island enrollment
  • 1,372 clinicians in this Medicare group
NPI 1174484216 (401) 272-1800
Rhode Island Hospital
139 mi
Multi-Specialty
593 EDDY ST
Providence, RI 02903
  • Reassigned Medicare billing, Rhode Island enrollment
  • 358 clinicians in this Medicare group
NPI 1154537520 (401) 444-6905

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.

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

Other Providers at the Same Location NPPES 5

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

MS. KELLY IRENE DALY APRN, FNP-C
Nurse Practitioner (Family)
51 SEWALL ST STE 1
PORTLAND, ME 04102
Cumberland County (207) 774-5761
JESSICA ESTHER RADWAY PA-C
Specialist
51 SEWALL ST STE 1
PORTLAND, ME 04102
Cumberland County (207) 774-5761
KATHERINE KELLER DO
Specialist
51 SEWALL ST STE 1
PORTLAND, ME 04102
Cumberland County (207) 774-5761
THOMAS CHARLES HOPKINS NP
Nurse Practitioner (Family)
51 SEWALL ST STE 1
PORTLAND, ME 04102
Cumberland County (207) 774-5761
DR. GRIFFIN JAMES REED MD
Specialist
51 SEWALL ST STE 1
PORTLAND, ME 04102
Cumberland County (207) 370-3105

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 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.

Where is Erin Little located?

Erin Little practices at 51 Sewall St Ste 1, Portland, ME 04102. The listed phone number is (207) 774-5761.

What is Erin Little's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Erin Little enrolled in Medicare?

Yes. Erin Little 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 Erin Little's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Erin Little reassigns Medicare benefits to 2 organizations: Lifespan Physician Group, Inc. (Providence, RI) and Rhode Island Hospital (Providence, RI). 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 Erin Little's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Erin Little accept?

Health plans from Anthem Blue Cross and Blue Shield list Erin Little 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 Erin Little affiliated with any hospitals?

According to CMS data, Erin Little is affiliated with Newport Hospital, Rhode Island Hospital and The Miriam Hospital.

When was this NPI record last updated?

The NPPES record for Erin Little was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.