Peter Michalos

  • East Setauket, NY
  • Ophthalmologist
NPI1528094414PAC ID6406768712
Medicare services, 2024
125
Medicare patients, 2024
136
Part D claims, 2024
55
Industry payments
$269
Affiliated sites
2
Practice address
33 Research Way, East Setauket, NY 11733
Practice phone
Call (631) 283-0002
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Kenneth Mark MD PC

East Setauket, New York

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Peter Michalos is an ophthalmologist in East Setauket, New York

Peter Michalos practices at Kenneth Mark MD PC in East Setauket, New York.

Peter Michalos' NPI, 1528094414, was assigned on June 23, 2006. Peter Michalos graduated from State University of New York Downstate Medical Center College of Medicine in 1986. Peter Michalos holds New York license 172137.

NPI and contact details
Medicare PAC ID
6406768712
NPI enumeration date
June 23, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(631) 283-0002
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
66
Medical school graduation
1986

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Peter Michalos practices at Kenneth Mark MD PC in East Setauket, New York

Peter Michalos' primary practice is Kenneth Mark MD PC, at 33 Research Way, East Setauket, NY 11733 in Suffolk County. The practice phone is (631) 283-0002.

  • Kenneth Mark MD PC
    33 Research Way, East Setauket, NY 11733 · Suffolk CountyPhone(631) 283-0002

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Peter Michalos is affiliated with 3 sites of care and 2 medical groups

Peter Michalos' primary practice is Kenneth Mark MD PC in East Setauket, New York. The medical group on file is Kenneth Mark MD. Dmand AI also links Peter Michalos to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Peter Michalos

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Peter Michalos' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Peter Michalos practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kenneth Mark MD PCAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Peter Michalos is one of 1,467 ophthalmologists in New York

Ophthalmology is Peter Michalos' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Peter Michalos is licensed in New York.

Specialties and state licenses

  • Ophthalmology, New YorkPrimaryLicense 172137 · taxonomy 207W00000X

Ophthalmologists near Peter Michalos

Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Peter Michalos billed Medicare for 125 services in 2024

CMS data shows 125 Medicare services from Peter Michalos across 3 procedure codes in 2024, for 136 Medicare patients. Medicare paid $9,451 for them. Every service was in an office.

Medicare services, 2024125
Medicare patients136
Paid by Medicare$9,451
Procedure codes3

Peter Michalos' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 2172024: 10452%
Surgery
2023: 212024: 21No change

Peter Michalos compared with the New York median for ophthalmologists, 2024

  • Peter Michalos
  • New York median
Medicare services
125vs 1,25890% below
Medicare patients
136vs 43669% below
Part D claims
12vs 64798% below

Medians across 1,557 ophthalmologists in New York with Dmand AI profiles that report each measure.

Peter Michalos' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Peter Michalos treated 136 Medicare patients in 2024, average age 79

CMS counts 136 Medicare patients who saw Peter Michalos in 2024. The largest group is 75 to 84, with 61 patients. 75% of them have high cholesterol, and 71% have high blood pressure. Their average risk score is 1.13, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Peter Michalos' median patient age at 80, with 29% women.

Medicare patients, 2024136
Average age79
Average risk score1.13

Peter Michalos' Medicare patients by age, 2024

Peter Michalos' Medicare patients by sex, 2024

  • Women8059%
  • Men5641%

Chronic conditions among Peter Michalos' Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure71%
  3. Arthritis46%
  4. Ischemic heart disease39%
  5. Chronic kidney disease24%
  6. Anxiety23%
  7. Atrial fibrillation23%
  8. Cancer21%

Share of Medicare patients with each condition. A patient can have several.

Peter Michalos' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 80

Patient panel by sex, all payers

  • Women29%
  • Men71%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Peter Michalos wrote 55 Medicare Part D claims in 2024

In 2024, Peter Michalos wrote 55 Medicare Part D claims for 20 patients. 64% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $386 in total drug cost. In 2023, CMS named 243 claims across 5 drugs.

Part D claims, 202455
Drugs named by CMS1
Total drug cost$386
Part D patients20

Peter Michalos' Part D claims by kind of drug, 2024

  • Generic35 claims64%
  • Brand-name and other20 claims36%

Peter Michalos' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Peter Michalos' Part D claims, 2024

  • Antibiotics20%11 of 55 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2432024: 1295%

Drugs named by CMS: 1 in 2024, 5 in 2023.

See all prescribing by Peter Michalos

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Peter Michalos takes part in Medicare

Peter Michalos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Peter Michalos received $269 in industry payments from 2016 to 2018

CMS Open Payments shows 4 general payments to Peter Michalos from 3 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Aerie Pharmaceuticals, Inc. paid the most, $125.

General payments to Peter Michalos by program year, 2016 to 2018

Companies that paid Peter Michalos the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Peter Michalos

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Peter Michalos graduated from State University of New York Downstate Medical Center College of Medicine

Peter Michalos graduated from State University of New York Downstate Medical Center College of Medicine in 1986.

  1. Medical schoolState University of New York Downstate Medical Center College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Peter Michalos's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Peter Michalos

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Peter Michalos' NPI number?

Peter Michalos' NPI number is 1528094414. It was assigned on June 23, 2006, and it is active in the NPI Registry.

What does Peter Michalos specialize in?

Peter Michalos is an ophthalmologist in East Setauket, New York. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Peter Michalos practice?

Peter Michalos practices at 33 Research Way, East Setauket, NY 11733. Peter Michalos' primary practice is Kenneth Mark MD PC in East Setauket, New York. Dmand AI also links Peter Michalos to 2 group practices and clinics and 1 medical group.

What is Peter Michalos' office phone number?

The practice phone on file for Peter Michalos is (631) 283-0002.

What is Peter Michalos' medical license number?

Peter Michalos holds New York license 172137.

What medical group is Peter Michalos part of?

Peter Michalos is linked to Kenneth Mark MD. Dmand AI links Peter Michalos to 1 more medical group.

Does Peter Michalos accept Medicare?

Yes. CMS data shows Peter Michalos billed Medicare for 125 services in 2024, and Peter Michalos accepts Medicare assignment.

How many Medicare patients does Peter Michalos see?

CMS counts 136 Medicare patients who saw Peter Michalos in 2024, with an average age of 79.

What services does Peter Michalos bill to Medicare?

In 2024, Peter Michalos' most billed Medicare services were eye exam or test (92133), eye exam or test (92134) and surgery: skin and soft tissue (13132).

Where did Peter Michalos go to medical school?

Peter Michalos graduated from State University of New York Downstate Medical Center College of Medicine in 1986.

Show 3 more questionsShow fewer questions

What drugs does Peter Michalos prescribe most?

In 2024 Medicare Part D data, Peter Michalos' most prescribed drugs by claims were Tobramycin-Dexamethasone.

Has Peter Michalos received payments from drug or device companies?

CMS Open Payments shows $269 in general payments to Peter Michalos from 3 companies from 2016 to 2018. The largest total came from Aerie Pharmaceuticals, Inc.

How long has Peter Michalos been practicing?

Peter Michalos graduated from medical school in 1986, 40 years ago.

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