NPPES file of Aug 9, 2026

Harold Paul Koller, M.D.

Ophthalmology Physician · Meadowbrook, PA

Harold Paul Koller, M.D. is an ophthalmology physician with a practice address in Meadowbrook, Pennsylvania, and NPI 1811935638, issued on Jun 3, 2006. Check the license 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
1811935638
Name
Harold Paul Koller
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
MD009944E LA
Self-reported in NPPES; status is on the state search
Practice location
1650 Huntingdon Pike, Meadowbrook, PA 19046
Phone
(215) 947-6660
Enumerated
Jun 3, 2006
Record last updated
Aug 3, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(215) 947-7425
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 1650 Huntingdon Pike

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

  1. Patrick Becher, DOObstetrics & Gynecology Physician1588666580
  2. Theresa Becker, M.D.Pediatrics Physician1700834199
  3. Charles Bemis, M.D.Interventional Cardiology Physician1164425138
  4. Lynn Bibolet, CRNPNurse Practitioner1851611313
  5. John Butler, MDInternal Medicine Physician1629049606
  6. Frederick Cogen, M.D.Allergy & Immunology Physician1902807902

Verify Harold Paul Koller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)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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99% fewer Medicare Part D claims than the average ophthalmology physician in 2024

14 Medicare Part D claims, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.

  1. Harold Koller14
  2. Specialty average1,518

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.

Harold Paul Koller among 1,088 ophthalmology physician records in Pennsylvania

Harold Paul Koller, M.D. is one of 1,088 ophthalmology physician records with a practice address in Pennsylvania. 81% 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 22% of them.

  • NPI issued2006 · 22% of these records are older, 40% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2012 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Pennsylvania

There are 1,088 ophthalmology physician records in Pennsylvania.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Gwendolyn Liang, MDJenkintown, PA 190461588667547
  2. Joseph Pizzano, M.D.Jenkintown, PA 190461154390607
  3. Mark Pyfer, M.D.Jenkintown, PA 190461134198096
  4. Mark Pyfer, MDJenkintown, PA 190461164059986
  5. Monisha Vora, MDJenkintown, PA 190461326363045
  6. Blair Armstrong, M.D.Langhorne, PA 190471033406210
  7. Bing Chiu, M.D.Langhorne, PA 190471720473689
  8. Jay Friedberg, M.D.Langhorne, PA 190471912960139

Common questions

What is Harold Paul Koller, M.D.'s NPI number?

Harold Paul Koller, M.D.'s National Provider Identifier (NPI) is 1811935638, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Harold Paul Koller, M.D. located?

The NPPES record lists a practice address at 1650 Huntingdon Pike, Meadowbrook, PA, 19046. Phone: (215) 947-6660. Providers update this record themselves, so call before visiting.

How can I verify Harold Paul Koller, M.D.'s license?

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 Harold Paul Koller, M.D. prescribe under Medicare Part D?

In 2024, Harold Paul Koller, M.D. had 14 Medicare Part D claims; the average among ophthalmology physician prescribers was 1,518. 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.