NPPES file of Aug 9, 2026

Robert J. Isler, M.D.

Diagnostic Radiology Physician · Portland, ME

Robert J. Isler, M.D. is a diagnostic radiology physician with a practice address in Portland, Maine, and NPI 1942372834, issued on Nov 15, 2006. Check the license (Maine 010214, as entered in NPPES) on the Maine Board of Licensure in Medicine; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942372834
Name
Robert J. Isler
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
010214 ME
Self-reported in NPPES; status is on the state search
Practice location
22 Bramhall St, Portland, ME 04102
Phone
(207) 662-2571
Enumerated
Nov 15, 2006
Record last updated
Jul 23, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicaid IDs
30007028 NH
289350099 ME
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest diagnostic radiology physician records → All 182 in Maine → Look up another NPI →

Also registered at 22 Bramhall St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jessica Abbatiello, NP-CFamily Nurse Practitioner1871811737
  2. Ruslan Abdukalikov, DOAnesthesiology Physician1831694793
  3. Tod Abrahams, M.D.Diagnostic Radiology Physician1538231642
  4. Joshua Abrams, PA-CSurgical Physician Assistant1932832128
  5. Christopher Abruzzese, D.OAnesthesiology Physician1558789305
  6. Haley Acker, PA-CPhysician Assistant1972167377

Verify Robert J. Isler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license 010214    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Robert J. Isler among 182 diagnostic radiology physician records in Maine

Robert J. Isler, M.D. is one of 182 diagnostic radiology physician records with a practice address in Maine. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 25% of them.

  • NPI issued2006 · 25% of these records are older, 35% newer
  • In a Medicare fileNo · 66% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2009 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Maine

There are 182 diagnostic radiology physician records in Maine. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 182 in Maine → Every provider in Portland → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Tod Abrahams, M.D.Portland, ME 041021538231642
  2. Brett Applebaum, M.D.Portland, ME 041021922170059
  3. Cydney Cox, M.D.Portland, ME 041021770675852
  4. Edward Cruz, M.D.Portland, ME 041021427049667
  5. Steven Farraher, M.D.Portland, ME 041021245219476
  6. Scott Fredericks, M.D.Portland, ME 041021578530069
  7. Anne Hayton, M.D.Portland, ME 041021528130408
  8. Peter Krauth, M.D.Portland, ME 041021649261892

Common questions

What is Robert J. Isler, M.D.'s NPI number?

Robert J. Isler, M.D.'s National Provider Identifier (NPI) is 1942372834, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert J. Isler, M.D. located?

The NPPES record lists a practice address at 22 Bramhall St, Portland, ME, 04102. Phone: (207) 662-2571. Providers update this record themselves, so call before visiting.

How can I verify Robert J. Isler, M.D.'s license?

NPPES lists Maine license number 010214, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.