NPPES file of Aug 9, 2026

Christopher Michael Jermak, MD

Ophthalmology Physician · Williamsville, NY

Christopher Michael Jermak, MD is an ophthalmology physician with a practice address in Williamsville, New York, and NPI 1619170354, issued on Jun 8, 2007. Check the license (New York 244389, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619170354
Name
Christopher Michael Jermak
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
244389 NY
Self-reported in NPPES; status is on the state search
Practice location
6637 Main St, Williamsville, NY 14221
Phone
(716) 632-1595
Enumerated
Jun 8, 2007
Record last updated
Dec 8, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(716) 204-4895
Medicaid ID
02893378 NY
Medicare enrollment
Enrolled (PECOS I20071203000562); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 2001
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 6637 Main St

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

  1. Mehdi Khan, DOOphthalmology Physician1679569214
  2. Faruk Koreishi, MDOphthalmology Physician1689745465
  3. Paul LeeOphthalmology Physician1568536043
  4. Ramakrishna Ratnakaram, MDOphthalmology Physician1780624577

Verify Christopher Michael Jermak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 244389
    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 New York 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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12% fewer Medicare Part D claims than the average ophthalmology physician in 2024

1,341 Medicare Part D claims for 399 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.

  1. Christopher Jermak1,341
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate442 claims
  2. Diclofenac Sodium317 claims
  3. Ketorolac Tromethamine192 claims
  4. Ciprofloxacin Hcl139 claims
  5. Atropine Sulfate103 claims
  6. Tobramycin41 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 72.3 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 score93.3
  2. Costout of 100 · 30%24.4
  3. Promoting interoperabilityout of 100 · 25%88.0
  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).

Industry payments in 2024: $372.88

6 payments; by number, the most common kind was food and beverage; the largest payer was Sandoz Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Jermak$372.88
  2. Specialty average$4,535.02

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

Bills Medicare through one group practice

  1. Ophthalmic Consultants OF Long IslandWilliamsville, NY

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

Christopher Michael Jermak among 1,822 ophthalmology physician records in New York

Christopher Michael Jermak, MD is one of 1,822 ophthalmology physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 66% of them.

  • NPI issued2007 · 66% of these records are older, 26% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2001 · median 1995 among the 1,215 with a school on file
  • Record last updated2010 · 71% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in New York

There are 1,822 ophthalmology physician records in New York.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Kenneth Anthone, M.D., F.A.C.S.Williamsville, NY 142211427040294
  2. Jon Dusse, MDWilliamsville, NY 142211558327742
  3. Barry Epstein, MDWilliamsville, NY 142211760475156
  4. Diane Flanigen, M.D.Williamsville, NY 142211912985904
  5. Peter Forgach, M.D.Williamsville, NY 142211427051515
  6. Paul Holmwood, MDWilliamsville, NY 142211225039043
  7. Mehdi Khan, DOWilliamsville, NY 142211679569214
  8. Jeffrey Lamkin, MDWilliamsville, NY 142211649241241

Common questions

What is Christopher Michael Jermak, MD's NPI number?

Christopher Michael Jermak, MD's National Provider Identifier (NPI) is 1619170354, issued on Jun 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Michael Jermak, MD located?

The NPPES record lists a practice address at 6637 Main St, Williamsville, NY, 14221. Phone: (716) 632-1595. Providers update this record themselves, so call before visiting.

How can I verify Christopher Michael Jermak, MD's license?

NPPES lists New York license number 244389, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Christopher Michael Jermak, MD prescribe under Medicare Part D?

In 2024, Christopher Michael Jermak, MD had 1,341 Medicare Part D claims for 399 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Christopher Michael Jermak, MD's MIPS final score?

The 2023 MIPS final score is 72.3 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.