NPPES file of Aug 9, 2026

Stephen A. Koscherak, PHD

Clinical Psychologist · Southwest Harbor, ME

Stephen A. Koscherak, PHD is a clinical psychologist with a practice address in Southwest Harbor, Maine, and NPI 1144290941, issued on Jan 24, 2006. Check the license with the Maine board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144290941
Name
Stephen A. Koscherak
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
0042341 NY
Self-reported in NPPES; status is on the state search
Practice location
16 Community LN, Southwest Harbor, ME 04679
Phone
(207) 244-5630
Enumerated
Jan 24, 2006
Record last updated
Mar 25, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(207) 244-4418
Medicaid ID
1790764512-009 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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Also registered at 16 Community LN

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

  1. Maddrey Coover, FNPFamily Nurse Practitioner1376220616
  2. Ann Dundon, PA-CMedical Physician Assistant1619070687
  3. Tanya Hanke, DOFamily Medicine Physician1760644082
  4. Michael Heniser, DOFamily Medicine Physician1457382251
  5. Julian Kuffler, M.D.Family Medicine Physician1619947785
  6. Daniel Lomelin, MD, MPHFamily Medicine Physician1043832058

Verify Stephen A. Koscherak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maine board licenses this professionCheck 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
Find 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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The practice group's MIPS final score for 2023 (Medicare payment program): 88 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Stephen A. Koscherak among 295 clinical psychologist records in Maine

Stephen A. Koscherak, PHD is one of 295 clinical psychologist records with a practice address in Maine. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 64% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 28% of these records are
  • Record last updated2013 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 clinical psychologist record lists a practice address in Southwest Harbor

They are 1 of the 38 NPPES records with a practice address in Southwest Harbor, and 295 clinical psychologist records in Maine.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Erin ValentineSurry, ME 046841629261425
  2. Jonathan Dudek, PH.D.Princeton, ME 046681356687040
  3. David Burggraff, PHDPleasant Point, ME 046671760581748
  4. Kimberly Landrau, PHDPerry, ME 046671720542202
  5. John Edwards, PH.D.Machias, ME 046541760503080
  6. Melanie Mace, PSY.D.Marshfield, ME 046541386966158
  7. Diana Sholtz, PH.D.Machias, ME 046541568471936
  8. David Mills, PH.D.Little Deer Isle, ME 046501659420347

Common questions

What is Stephen A. Koscherak, PHD's NPI number?

Stephen A. Koscherak, PHD's National Provider Identifier (NPI) is 1144290941, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen A. Koscherak, PHD located?

The NPPES record lists a practice address at 16 Community LN, Southwest Harbor, ME, 04679. Phone: (207) 244-5630. Providers update this record themselves, so call before visiting.

How can I verify Stephen A. Koscherak, PHD's license?

Search the Maine board that licenses this profession; the NPPES record confirms identity only.

What is Stephen A. Koscherak, PHD's MIPS final score?

The 2023 MIPS final score is 88 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.