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PIONEER VALLEY INTERNAL MEDICINE, PC
NPI 1275587057
Internal Medicine in Florence, MA

Active since May 19, 2006
15 STRAW AVE, FLORENCE, MA 01062(413) 584-2333 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Pioneer Valley Internal Medicine, Pc NPPES

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

PIONEER VALLEY INTERNAL MEDICINE, PC (NPI 1275587057) is a healthcare organization registered as an internal medicine in Florence, Massachusetts and active in the NPI registry since May 2006. The organization lists Susan J. Mosler, President, as its authorized official.

NPPES Registry Identity

NPI1275587057
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NamePIONEER VALLEY INTERNAL MEDICINE, PC
Location Address15 STRAW AVEFlorence, MA 01062-1464
Mailing Address15 Straw AveFlorence, MA 01062-1464 · (413) 584-2333
Phone(413) 584-2333
Organization SubpartNo
Authorized OfficialSusan J. MoslerPresident · (413) 584-2333
Enumeration DateMay 19, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1275587057 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
15 STRAW AVE, Florence, MA 01062
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Pioneer Valley Internal Medicine, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Pioneer Valley Internal Medicine, PC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Christine Baker, MD
Internal Medicine
NPI 1518946359
190 NONOTUCK ST
Northampton, MA 01062
(413) 584-9511
✔ PECOS✔ Accepts Medicare0.5 mi
Erica Domeier, FNP
Nurse Practitioner
NPI 1912641754
329 CONWAY ST
Greenfield, MA 01301
(413) 774-6301
✔ PECOS✔ Accepts Medicare19 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Pioneer Valley Internal Medicine, PC's NPI number?

The NPI number for Pioneer Valley Internal Medicine, PC is 1275587057. It was assigned to this organization in the NPPES registry on May 19, 2006.

Where is Pioneer Valley Internal Medicine, PC located?

Pioneer Valley Internal Medicine, PC is located at 15 Straw Ave, Florence, MA 01062. The listed phone number is (413) 584-2333.

What is Pioneer Valley Internal Medicine, PC's specialty?

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

Is Pioneer Valley Internal Medicine, PC enrolled in Medicare?

Yes. Pioneer Valley Internal Medicine, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Pioneer Valley Internal Medicine, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Pioneer Valley Internal Medicine, PC, in Internal Medicine and Nurse Practitioner. A 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 the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Pioneer Valley Internal Medicine, PC accept?

Health plans from Anthem Blue Cross and Blue Shield list Pioneer Valley Internal Medicine, PC 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.

When was this NPI record last updated?

The NPPES record for Pioneer Valley Internal Medicine, PC was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.