KAREN HILTUNEN (MD) – Pediatrics Physician, NPI 1700864154

KAREN HILTUNEN (MD) is a healthcare provider. based in Westford, Massachusetts. specializing in Pediatrics Physician. They hold the professional credentials MD. They hold a License No. 213917 (MA). The NPI Number for KAREN HILTUNEN (MD) is 1700864154

Main info

Female
27 Years Of Experience
Accepts Medicare Assignment
Name
KAREN HILTUNEN (MD)
NPI
1700864154
Phone
(978) 577-0437
Address
133 LITTLETON RD
Enumeration Date
5 January 2006
Last Update Date
14 August 2007

Doctor Profile

Medical School Name
STATE UNIVERSITY OF NEW YORK AT BUFFALO SCHOOL OF MEDICINE
Secondary Phone
9785770437
Graduation Year
1999 (27 years ago)
PAC ID
1355504846
Group Practice PAC ID
0143448514
Professional Enrollment ID
I20180313001843
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for KAREN HILTUNEN (MD)

  • Emerson Hospital Health Center, 133, Littleton Road, Westford, Middlesex County, Massachusetts, 01886-3139, United States

    SUITE 101

    WESTFORD, MA 018863198

    Phone: (978) 577-0437

    Fax: (978) 692-9904

    Type: Mailing

  • 100, Boston Road, Four Corners, Groton, Middlesex County, Massachusetts, 01450, United States

    SUITE F

    GROTON, MA 014501860

    Phone: (978) 448-8282

    Fax: (978) 448-6707

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2018-03-13

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20180313001843IPediatric MedicineMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 01886)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0143448514View full group profile
NameSpecialtyState
Nurse PractitionerMA
Nurse PractitionerMA
Pediatric MedicineMA
A L L E R G Y/ I M M U N O L O G YMA
Nurse PractitionerMA
Pediatric MedicineMA
Nurse PractitionerMA
Nurse PractitionerMA
-MA
Nurse PractitionerMA

Reviews

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Frequently asked questions

Does KAREN HILTUNEN (MD) share an NPI with anyone else?
NPI numbers are unique to each provider or organization — KAREN HILTUNEN (MD) uses 1700864154.
Is KAREN HILTUNEN (MD) listed as active for patients and plans?
The listing shows KAREN HILTUNEN (MD) as active in the NPI system.
What taxonomy line describes KAREN HILTUNEN (MD)?
For research purposes, treat KAREN HILTUNEN (MD) as Pediatrics Physician in this dataset. Clinical services aligned with this taxonomy classification.
Does KAREN HILTUNEN (MD) list a practice location?
Patients near Westford, Massachusetts may find KAREN HILTUNEN (MD) in results; validate coverage separately.
How many locations tie to this NPI?
2 practice locations appear in the available data.

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