1. Home
  2. Directory
  3. Rhode Island
  4. Providence
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KAREN T TASHIMA MD
NPI 1396740551
Internal Medicine - Infectious Disease in Providence, RI

Active since June 15, 2005PECOS EnrolledAccepts Medicare Assignment
1125 N MAIN ST, PROVIDENCE, RI 02904(401) 793-2928 Get Directions Write a Review

NPPES record last updated: August 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 28, 2026, Mar 17, 2026, Nov 27, 2019 and 1 more (4 updates tracked since 2016).

About Karen T Tashima Md NPPES

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

KAREN T TASHIMA MD (NPI 1396740551) is an individual infectious disease provider in Providence, Rhode Island, licensed in Rhode Island (MD08951) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS, is affiliated with Southcoast Hospitals Group, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1396740551
Entity TypeIndividualFemale
Primary Taxonomy207RI0200X
Provider Legal NameKAREN T TASHIMACredential: MD
Location Address1125 N MAIN STProvidence, RI 02904-5739
Mailing Address15 La Salle SqProvidence, RI 02903-1814 · (401) 444-6779 · Fax (401) 444-6912
Phone(401) 793-2928
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 1988
Enumeration DateJune 15, 2005
Last NPPES UpdateAugust 28, 20264 updates tracked since enumeration
NPPES CertifiedAugust 28, 2026
✔ NPI 1396740551 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Licenses✔ Licensed in RI · MD08951✔ Licensed in MA · 81632
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD08951 (RI)
1125 N MAIN ST, Providence, RI 02904
Open in Google Maps ↗

Secondary Practice Locations 5

Location 1593 Eddy StProvidence, RI 02903-4923 · Phone (401) 444-7793 · Fax (401) 444-8179
Location 2400 Stanley StFall River, MA 02720-6009 · Phone (508) 675-1054 · Fax (508) 324-7777
Location 3180 Corliss St Ste E1Providence, RI 02904-2602 · Phone (401) 793-2928
Location 4180 Corliss St Ste E2Providence, RI 02904-2602 · Phone (401) 793-2928
Location 5164 Summit Ave, Fain Bldg., Suite EProvidence, RI 02906-2853 · Phone (401) 793-2928 · Fax (401) 793-7401

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

Karen T Tashima 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 ID2264416320
PECOS Enrollment IDI20040616000253, I20111115000801
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

4

Medicare enrollment records show Karen Tashima reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Miriam Hospital
0.1 mi
Infectious Disease
14 THIRD STREET
Providence, RI 02906
  • Reassigned Medicare billing, Rhode Island enrollment
  • Also billed through NPI 1275810434 (Rhode Island)
  • 13 clinicians in this Medicare group
NPI 1568567790 (401) 793-7272
Lifespan Physician Group Inc
0.3 mi
Urology
195 COLLYER ST STE 201
Providence, RI 02904
  • Reassigned Medicare billing, Rhode Island enrollment
  • 1,372 clinicians in this Medicare group
NPI 1720949803 (401) 272-7799
Brown Medicine
3.0 mi
Gastroenterology
235 PLAIN ST STE 201
Providence, RI 02905
  • Reassigned Medicare billing, Rhode Island enrollment
  • 256 clinicians in this Medicare group
NPI 1730827767 (401) 861-8830
Stanley Street Treatment And Resources, Inc
16 mi
Federally Qualified Health Center (FQHC)
75 WEAVER ST
Fall River, MA 02720
  • Reassigned Medicare billing, Massachusetts enrollment
  • 40 clinicians in this Medicare group
NPI 1932838513 (508) 675-1054

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 3

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.

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.
44 services43 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.
42 services32 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
13 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Southcoast Hospitals Group

Acute Care Hospitals · Fall River, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220074
Location363 Highland AvenueFall River, MA 02720 · Bristol County
Emergency services Birthing friendly

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 02904 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
$134.17 typical visit price
range $58.57 – $177.03
Typical copayment $33.54 (range $14.64 – $44.25)
Most-billed visit code 99204
Established Patient
$103.10 typical visit price
range $18.92 – $144.38
Typical copayment $25.77 (range $4.73 – $36.09)
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 10

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

MICHAELA ANN MAYNARD APRN
Nurse Practitioner (Adult Health)
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-2928
DR. FRANCINE TOUZARD ROMO M.D.
Internal Medicine (Infectious Disease)
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-2928
LAUREEN MALATESTA BERKOWITZ PA-C
Physician Assistant
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-2928
GERARD J NAU M.D.,PHD
Internal Medicine (Infectious Disease)
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-4020
REBECCA MARIE REECE M.D.
Internal Medicine (Infectious Disease)
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-4075
RAMI A KANTOR M.D.
Internal Medicine (Infectious Disease)
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-2928
SUSAN CU UVIN MD
Internal Medicine
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-2928
DR. JENNIE ELIZABETH JOHNSON M.D.
Internal Medicine (Infectious Disease)
1125 N MAIN ST
PROVIDENCE, RI 02904
Providence County (401) 793-2928

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 Karen Tashima's NPI number?

The NPI number for Karen Tashima is 1396740551. It was assigned to this individual provider in the NPPES registry on June 15, 2005.

Where is Karen Tashima located?

Karen Tashima practices at 1125 N Main St, Providence, RI 02904. The listed phone number is (401) 793-2928.

What is Karen Tashima's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Karen Tashima enrolled in Medicare?

Yes. Karen Tashima 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 Karen Tashima's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Tashima reassigns Medicare benefits to 4 organizations: The Miriam Hospital (Providence, RI), Lifespan Physician Group Inc (Providence, RI), Brown Medicine (Providence, RI) and Stanley Street Treatment And Resources, Inc (Fall River, 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 Karen Tashima's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karen Tashima accept?

Health plans from Anthem Blue Cross and Blue Shield list Karen Tashima 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 Karen Tashima affiliated with any hospitals?

According to CMS data, Karen Tashima is affiliated with Southcoast Hospitals Group and The Miriam Hospital.

When was this NPI record last updated?

The NPPES record for Karen Tashima was last updated on August 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 54 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.