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KAREN C DASILVA M.D.
NPI 1851364889
Internal Medicine in Chelmsford, MA

Active since February 09, 2006PECOS Enrolled
228 BILLERICA RD, INTERNAL MEDICINE, CHELMSFORD, MA 01824(978) 250-6100 Get Directions Write a Review

NPPES record last updated: September 20, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 20, 2021, Nov 16, 2020 (2 updates tracked since 2020).

About Karen C Dasilva M.d. NPPES

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

KAREN C DASILVA M.D. (NPI 1851364889) is an individual internal medicine provider in Chelmsford, Massachusetts, licensed in Massachusetts (78527) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851364889
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN C DASILVACredential: M.D.
Location Address228 BILLERICA RD, INTERNAL MEDICINEChelmsford, MA 01824-3604
Mailing Address228 Billerica RdChelmsford, MA 01824-3604 · (978) 250-6100 · Fax (978) 250-6002
Phone(978) 250-6100
Sole ProprietorNo
Enumeration DateFebruary 9, 2006
Last NPPES UpdateSeptember 20, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 20, 2021
✔ NPI 1851364889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 78527
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.
Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License 78527 (MA)
228 BILLERICA RD, Chelmsford, MA 01824
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Other Identifiers 4

Other078527MA · Tufts
OtherJ14317MA · Blue Cross
OtherPV490MA · Harvard Pilgrim
Medicaid3192482MA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Karen C Dasilva M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

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.

Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01824 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.

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
7 suppliers23 claims53 services$5.62 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
2 suppliers11 claims66 services$1.83 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier11 claims11 services$41.91 avg. paid by Medicare
Humidifier, heated, used with positive airway pressure device E0562
DME-Other DME · category DE001N
2 suppliers11 claims11 services$8.48 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
1 supplier16 claims16 services$21.38 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

MS. KIT YAN LEE
Physical Therapist
228 BILLERICA RD
CHELMSFORD, MA 01824
Middlesex County (978) 250-6045
NATALIE C. HOWARD CCC-SLP
Speech-Language Pathologist
228 BILLERICA RD
CHELMSFORD, MA 01824
Middlesex County (978) 250-6040
STEVEN A MORGENSTERN M.D.
Internal Medicine
228 BILLERICA RD, INTERNAL MEDICINE
CHELMSFORD, MA 01824
Middlesex County (978) 250-6100
CHANDRA RAMANATHAN M.D.
Pediatrics
228 BILLERICA RD
CHELMSFORD, MA 01824
Middlesex County (978) 250-6000
MEGAN PINETTE PSYD
Psychologist (Clinical)
228 BILLERICA RD
CHELMSFORD, MA 01824
Middlesex County (978) 250-6240
MRS. NICHOLE MARIE PERRIN APRN, FNP-C
Nurse Practitioner (Family)
228 BILLERICA RD
CHELMSFORD, MA 01824
Middlesex County (978) 250-6100
SONIA ALMEIDA PA
Physician Assistant
228 BILLERICA RD
CHELMSFORD, MA 01824
Middlesex County (603) 488-5154
CHERYL BRACKBILL PA-C
Physician Assistant
228 BILLERICA RD
CHELMSFORD, MA 01824
Middlesex County (978) 250-6200

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 Dasilva's NPI number?

The NPI number for Karen Dasilva is 1851364889. It was assigned to this individual provider in the NPPES registry on February 9, 2006.

Where is Karen Dasilva located?

Karen Dasilva practices at 228 Billerica Rd Internal Medicine, Chelmsford, MA 01824. The listed phone number is (978) 250-6100.

What is Karen Dasilva's specialty?

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

Is Karen Dasilva enrolled in Medicare?

Yes. Karen Dasilva is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Karen Dasilva was last updated on September 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.