NPPES file of Aug 9, 2026

Laurin Koskinen, MD

Internal Medicine Physician · Portland, ME

Laurin Koskinen, MD is an internal medicine physician with a practice address in Portland, Maine, and NPI 1356456636, issued on Aug 20, 2006. Check the license (Maine 017207, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356456636
Name
Laurin Koskinen
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
017207 ME
Self-reported in NPPES; status is on the state search
Practice location
1145 Brighton Ave, Portland, ME 04102
Phone
(781) 480-1976
Enumerated
Aug 20, 2006
Record last updated
Mar 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(781) 480-1981
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 1145 Brighton Ave

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

  1. Taylor Black, DPT, C.S.C.S.Physical Therapist1992474753
  2. Dawn Caldwell, P.T.Physical Therapist1912162637
  3. Denise Cobleigh, PTAPhysical Therapy Assistant1699931626
  4. Steven Kiesman, PTAPhysical Therapy Assistant1497911549
  5. Sarah Kleffke, MSSpeech-Language Pathologist1265901375
  6. Kristen Knopp, NP-CFamily Nurse Practitioner1770038572

Verify Laurin Koskinen 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 017207
    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

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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

218 Medicare Part D claims for 28 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.

  1. Laurin Koskinen218
  2. Specialty average3,176

Most prescribed

  1. Sertraline Hcl33 claims
  2. Myrbetriq23 claims
  3. Eliquis18 claims
  4. Farxiga15 claims
  5. Escitalopram Oxalate13 claims
  6. Novolog Flexpen12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

145 internal medicine physician records list a practice address in Portland

They are 145 of the 6,022 NPPES records with a practice address in Portland, and 597 internal medicine physician records in Maine.

Other internal medicine physician records in Maine

  1. George Abboud, MDBiddeford, ME1376612945
  2. Karen Abernathy, M.D.Rockport, ME1124312335
  3. Hassan Abouleish, MDHoulton, ME1255300307
  4. Philip Abraham, M.D.Kittery, ME1497750764
  5. Elizabeth Ackerson, MDPortland, ME1912920117
  6. Lindsey Ackley-Pozzessere, DOBrunswick, ME1477991842
  7. Todd Adams, MDMoody, ME1427165778
  8. Muhammad Umer Ahmed, MDBangor, ME1134893183
  9. Samer Al-Ameri, MDBangor, ME1225514854
  10. Ali Al-OmariBangor, ME1447634431

Common questions

What is Laurin Koskinen, MD's NPI number?

Laurin Koskinen, MD's National Provider Identifier (NPI) is 1356456636, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Laurin Koskinen, MD located?

The NPPES record lists a practice address at 1145 Brighton Ave, Portland, ME, 04102. Phone: (781) 480-1976. Providers update this record themselves, so call before visiting.

How can I verify Laurin Koskinen, MD's license?

NPPES lists Maine license number 017207, 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.

How much does Laurin Koskinen, MD prescribe under Medicare Part D?

In 2024, Laurin Koskinen, MD had 218 Medicare Part D claims for 28 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.