NPPES file of Aug 9, 2026

Michael David Lewen, MD

Retina Specialist (Ophthalmology) Physician · Pittsburgh, PA

Michael David Lewen, MD is a retina specialist (ophthalmology) physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1861830119, issued on Jun 10, 2013. Check the license (Pennsylvania MD466664, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1861830119
Name
Michael David Lewen
Credential
MD
Primary taxonomy
Retina Specialist (Ophthalmology) Physician 207WX0107X
License number
MD466664 PA
Self-reported in NPPES; status is on the state search
Practice location
420 E North Ave Ste 116, Pittsburgh, PA 15212
Phone
(412) 359-6300
Enumerated
Jun 10, 2013
Record last updated
Sep 17, 2025
Medicare enrollment
Enrolled (PECOS I20190620001109); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 420 E North Ave Ste 116

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

  1. Matthew BrucksOphthalmology Physician1568752491
  2. Fatima-Tun-Nissa Raza, MDOphthalmology Physician1043914062
  3. Mamta Shah, M.D.Ophthalmology Physician1366853566
  4. Thierry Verstraeten, MDOphthalmology Physician1538120977

Verify Michael David Lewen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD466664
    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 Pennsylvania license search

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46% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024

337 Medicare Part D claims for 99 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.

  1. Michael Lewen337
  2. Specialty average620

Most prescribed

  1. Prednisolone Acetate128 claims
  2. Ofloxacin74 claims
  3. Latanoprost30 claims
  4. Timolol Maleate28 claims
  5. Ketorolac Tromethamine17 claims
  6. Brimonidine Tartrate12 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.

Industry payments in 2024: $460.65

16 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Lewen$460.65
  2. Specialty average$7,667.49

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Alexander Chang MD PCPittsburgh, PA
  2. Allegheny ClinicPittsburgh, PA
  3. Allegheny Ophthalmic And Orbital AssociatesPittsburgh, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael David Lewen among 56 retina specialist (ophthalmology) physician records in Pennsylvania

Michael David Lewen, MD is one of 56 retina specialist (ophthalmology) physician records with a practice address in Pennsylvania. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 63% of them.

  • NPI issued2013 · 63% of these records are older, 29% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 89% of these records are
  • Graduated2013 · median 2005 among the 50 with a school on file
  • Record last updated2025 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Retina Specialist (Ophthalmology) Physician providers in Pennsylvania

There are 56 retina specialist (ophthalmology) physician records in Pennsylvania.

The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes

  1. Jay Chhablani, MDPittsburgh, PA 152131528623477
  2. Marie Helene ErreraPittsburgh, PA 152131669941522
  3. Colin PrenskyPittsburgh, PA 152131255682217
  4. Farzad Jamshidi, MD PHDPittsburgh, PA 152191235617051
  5. Lucas Janeschitz-KrieglPittsburgh, PA 152191841112141
  6. Niroj SahooPittsburgh, PA 152191407702657
  7. Robert Bergren, MDMonroeville, PA 151461467407130
  8. Jared Knickelbein, MD/PHDMonroeville, PA 151461528357043

Common questions

What is Michael David Lewen, MD's NPI number?

Michael David Lewen, MD's National Provider Identifier (NPI) is 1861830119, issued on Jun 10, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Michael David Lewen, MD located?

The NPPES record lists a practice address at 420 E North Ave Ste 116, Pittsburgh, PA, 15212. Phone: (412) 359-6300. Providers update this record themselves, so call before visiting.

How can I verify Michael David Lewen, MD's license?

NPPES lists Pennsylvania license number MD466664, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael David Lewen, MD prescribe under Medicare Part D?

In 2024, Michael David Lewen, MD had 337 Medicare Part D claims for 99 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. 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.