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DR. ERIC J NIELSEN MD
NPI 1952750556
Internal Medicine in Shrewsbury, MA

Active since June 06, 2016PECOS EnrolledAccepts Medicare Assignment
378 MAPLE AVE, SHREWSBURY, MA 01545(508) 368-7820 Get Directions Write a Review

NPPES record last updated: September 6, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 6, 2024, Jul 6, 2021 (2 updates tracked since 2021).

About Dr. Eric J Nielsen Md NPPES

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

DR. ERIC J NIELSEN MD (NPI 1952750556) is an individual internal medicine provider in Shrewsbury, Massachusetts, licensed in Massachusetts (1017771) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of University Of Rochester School Of Medicine And Dentistry (2016).

NPPES Registry Identity

NPI1952750556
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ERIC J NIELSENCredential: MD
Location Address378 MAPLE AVEShrewsbury, MA 01545-2675
Mailing Address378 Maple AveShrewsbury, MA 01545-2675 · (508) 368-7820
Phone(508) 368-7820
Sole ProprietorNo
Medical School CMSUniversity Of Rochester School Of Medicine And DentistryGraduated 2016
Enumeration DateJune 6, 2016
Last NPPES UpdateSeptember 6, 20242 updates tracked since enumeration
NPPES CertifiedSeptember 6, 2024
✔ NPI 1952750556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MA · 1017771✔ Licensed in VA · 0101263082
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.
378 MAPLE AVE, Shrewsbury, MA 01545
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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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Eric J Nielsen 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 ID8820490626
PECOS Enrollment IDI20241004001621
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.

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.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

St Vincent Hospital

Acute Care Hospitals · Worcester, MA
2/5 CMS rating
OwnershipProprietary
CMS Certification Number220176
Location123 Summer StreetWorcester, MA 01608 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01545 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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 18

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

KENNETH H KRONLUND JR. MD
Internal Medicine
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 595-2513
PRASHANTHA DEVIDAS HOLLA MD
Internal Medicine
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 595-2513
DR. SUSAN CASHION ROBINSON M.D.
Pediatrics
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 852-8571
MR. ANDREW ROBERT MACKNAIR PA
Physician Assistant (Medical)
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 595-2513
FLORENCE MUMBI GICHUHI NP
Nurse Practitioner (Primary Care)
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 595-2513
DEMETRIOS CARELLAS PA-C
Physician Assistant
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 595-2513
NEHA ZAER ESMAEILI MD
Pediatrics
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 852-8571
MUHAMMAD SAIFUL MOWLA MD
Family Medicine
378 MAPLE AVE
SHREWSBURY, MA 01545
Worcester County (508) 595-2513

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 Eric Nielsen's NPI number?

The NPI number for Eric Nielsen is 1952750556. It was assigned to this individual provider in the NPPES registry on June 6, 2016.

Where is Eric Nielsen located?

Eric Nielsen practices at 378 Maple Ave, Shrewsbury, MA 01545. The listed phone number is (508) 368-7820.

What is Eric Nielsen's specialty?

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

Is Eric Nielsen enrolled in Medicare?

Yes. Eric Nielsen 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.

What insurance does Eric Nielsen accept?

Health plans from Anthem Blue Cross and Blue Shield list Eric Nielsen 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 Eric Nielsen affiliated with any hospitals?

According to CMS data, Eric Nielsen is affiliated with Umass Memorial Medical Center/University Campus and St Vincent Hospital.

When was this NPI record last updated?

The NPPES record for Eric Nielsen was last updated on September 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.