Ari Hirshfeld
Hospitalist Physician · Ellsworth, ME
Ari Hirshfeld is a hospitalist physician with a practice address in Ellsworth, Maine, and NPI 1881154268, issued on Mar 22, 2019. Check the license (Maine MD26639, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ari Hirshfeld
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- MD26639 ME
Self-reported in NPPES; status is on the state search - Practice location
- 50 Union St, Ellsworth, ME 04605
- Phone
- (207) 664-5311
- Enumerated
- Mar 22, 2019
- Record last updated
- May 19, 2023
- Medicare enrollment
- Enrolled (PECOS I20250410002124); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 245 in Maine → Look up another NPI →
Also registered at 50 Union St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Alexander, MDInternal Medicine Physician1841230588
- Mercedes Ang, M.D.Internal Medicine Physician1033341813
- Jason Berube, PHARMDPharmacist1891128021
- Alexandria Boley, DOPediatrics Physician1811359896
- Wesam Bolkhir, M.D.Hospitalist Physician1407060189
- Amy Case, PAPhysician Assistant1396998266
Verify Ari Hirshfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD26639Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Plover Inpatient Services LLCNorth Bergen, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ari Hirshfeld among 245 hospitalist physician records in Maine
Ari Hirshfeld is one of 245 hospitalist physician records with a practice address in Maine. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 77% of them.
- NPI issued2019 · 77% of these records are older, 19% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2019 · median 2012 among the 206 with a school on file
- Record last updated2023 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Maine
There are 245 hospitalist physician records in Maine.
All 245 in Maine → Every provider in Ellsworth → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Wesam Bolkhir, M.D.Ellsworth, ME 046051407060189
- Emily McPherson, DOEllsworth, ME 046051962906198
- Erin SalterEllsworth, ME 046051396240800
- Iris Savernik, D.O.Ellsworth, ME 046051972790483
- Alexander Kulczycki, M.D.Bar Harbor, ME 046091992932248
- Meryl Nass, MDBar Harbor, ME 046091487625828
- David Welsh, MDBar Harbor, ME 046091982278396
- Ronald Prokopius, MDBlue Hill, ME 046141295732097
Common questions
What is Ari Hirshfeld's NPI number?
Ari Hirshfeld's National Provider Identifier (NPI) is 1881154268, issued on Mar 22, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ari Hirshfeld located?
The NPPES record lists a practice address at 50 Union St, Ellsworth, ME, 04605. Phone: (207) 664-5311. Providers update this record themselves, so call before visiting.
How can I verify Ari Hirshfeld's license?
NPPES lists Maine license number MD26639, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.