Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Ari Hirshfeld

Individual provider Hospitalist Physician · NPI 1881154268

Ari Hirshfeld practises Internal Medicine in Ellsworth, Maine. Qualified in 2019, 7 years ago. Practices with Plover Inpatient Services LLC, a 153-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
7
Licensed in
ME
In the registry since
2019

Practice location Address checks out

50 Union St
Ellsworth, ME 04605-1534
Phone: (207) 664-5311
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD26639 (ME)

Record details

NPI number1881154268
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMarch 22, 2019
Last updated in NPPESMay 19, 2023
Certification dateMay 19, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Plover Inpatient Services Llc — 153 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients112
Services billed 121 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Plover Inpatient Services LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 153 clinicians in the practice; 12 are shown here.

Other providers in Ellsworth