Michael Zemaitis

  • Staten Island, NY
  • General surgeon
NPI1902218217PAC ID1557763950
Medicare services, 2024
202
Medicare patients, 2024
153
Part D claims, 2024
29
Publications
3
MIPS score, 2024
71
Practice address
355 Bard Avenue, Staten Island, NY 10310
Practice phone
Call (718) 354-5047
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Richmond University Medical Center

Hospital · Staten Island, New York

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Michael Zemaitis is a general surgeon in Staten Island, New York

Michael Zemaitis practices at Richmond University Medical Center in Staten Island, New York, part of Richmond University Medical Center.

Michael Zemaitis' NPI, 1902218217, was assigned on May 21, 2014. Michael Zemaitis holds New York license 305366.

NPI and contact details
Medicare PAC ID
1557763950
NPI enumeration date
May 21, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(718) 354-5047
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
38
Medical school graduation
2014

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

Michael Zemaitis practices at Richmond University Medical Center in Staten Island, New York

Michael Zemaitis' primary practice is Richmond University Medical Center, at 355 Bard Avenue, Staten Island, NY 10310 in Richmond County. The practice phone is (718) 354-5047.

Source: Dmand AI Affiliation Data

Michael Zemaitis is affiliated with 1 site of care and 1 medical group

Michael Zemaitis' primary practice is Richmond University Medical Center in Staten Island, New York, part of Richmond University Medical Center. The medical group on file is Amboy Medical Practice PC.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Michael Zemaitis' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Michael Zemaitis practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Richmond University Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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Michael Zemaitis is one of 1,604 general surgeons in New York

Surgery is Michael Zemaitis' primary specialty in the NPI Registry, under taxonomy code 208600000X. Michael Zemaitis is licensed in New York.

Specialties and state licenses

  • Surgery, New YorkPrimaryLicense 305366 · taxonomy 208600000X

General surgeons near Michael Zemaitis

Counts of general surgeons 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

Michael Zemaitis billed Medicare for 202 services in 2024

CMS data shows 202 Medicare services from Michael Zemaitis across 4 procedure codes in 2024, for 153 Medicare patients. Medicare paid $27,389 for them.

Medicare services, 2024202
Medicare patients153
Paid by Medicare$27,389
Procedure codes4

Michael Zemaitis' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2172024: 2027%
Surgery
2023: 112024: 0100%

Where Michael Zemaitis' Medicare services took place, 2024

  • In an office2512%
  • In a facility17788%

Michael Zemaitis compared with the New York median for general surgeons, 2024

  • Michael Zemaitis
  • New York median
Medicare services
202vs 15431% above
Medicare patients
153vs 10940% above

Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.

Michael Zemaitis' 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.

See all procedures by Michael Zemaitis

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

Michael Zemaitis treated 153 Medicare patients in 2024, average age 74

CMS counts 153 Medicare patients who saw Michael Zemaitis in 2024. The largest group is 75 to 84, with 49 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.41, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Michael Zemaitis' median patient age at 53, with 60% women.

Medicare patients, 2024153
Average age74
Average risk score2.41
Also on Medicaid46%

Michael Zemaitis' Medicare patients by age, 2024

Michael Zemaitis' Medicare patients by sex, 2024

  • Women7650%
  • Men7750%

Chronic conditions among Michael Zemaitis' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis59%
  4. Diabetes58%
  5. Ischemic heart disease46%
  6. Anxiety43%
  7. Mood disorders43%
  8. COPD37%

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

Michael Zemaitis' patients across all payers

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

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women60%
  • Men38%

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

Michael Zemaitis wrote 29 Medicare Part D claims in 2024

In 2024, Michael Zemaitis wrote 29 Medicare Part D claims for 15 patients. 100% of them were for generic drugs.

Part D claims, 202429
Part D patients15

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Michael Zemaitis scored 71 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 71 out of 100 for Michael Zemaitis for performance year 2024, reported through an alternative payment model (APM). Michael Zemaitis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of removal of tissue by Michael Zemaitis, more than 62% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Michael Zemaitis' MIPS scores, performance year 2024

  • 71of 100Final score
  • 82.9of 100Quality
  • 6of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Michael Zemaitis ranks in Medicare procedure volume

Removal of tissue
62nd percentile11 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)

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

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Michael Zemaitis has 3 publications on record

Dmand AI links 3 papers to Michael Zemaitis, published from 2016 to 2018. Michael Zemaitis' most frequent co-author is Walid Fouad Gellad, MD.

Papers3
Years published2016 to 2018

Michael Zemaitis' most frequent co-authors

Recent publications by Michael Zemaitis

See all 3 publications and co-authors

See who Michael Zemaitis researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Michael Zemaitis works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Michael Zemaitis received $1,091 in industry payments from 2020 to 2025

CMS Open Payments shows 20 general payments to Michael Zemaitis from 13 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $408.

General payments to Michael Zemaitis by program year, 2020 to 2025

Companies that paid Michael Zemaitis the most, 2020 to 2025

Share is of all general payments to this clinician.

See all payments to Michael Zemaitis

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

Sources for Michael Zemaitis'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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 (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Michael Zemaitis

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

What is Michael Zemaitis' NPI number?

Michael Zemaitis' NPI number is 1902218217. It was assigned on May 21, 2014, and it is active in the NPI Registry.

What does Michael Zemaitis specialize in?

Michael Zemaitis is a general surgeon in Staten Island, New York. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Michael Zemaitis practice?

Michael Zemaitis practices at 355 Bard Avenue, Staten Island, NY 10310. Michael Zemaitis' primary practice is Richmond University Medical Center in Staten Island, New York, part of Richmond University Medical Center.

What is Michael Zemaitis' office phone number?

The practice phone on file for Michael Zemaitis is (718) 354-5047.

What is Michael Zemaitis' medical license number?

Michael Zemaitis holds New York license 305366.

Which hospitals is Michael Zemaitis affiliated with?

Michael Zemaitis practices at Richmond University Medical Center in Staten Island, New York.

What medical group is Michael Zemaitis part of?

Michael Zemaitis is linked to Amboy Medical Practice PC.

Does Michael Zemaitis accept Medicare?

Yes. CMS data shows Michael Zemaitis billed Medicare for 202 services in 2024, and Michael Zemaitis accepts Medicare assignment.

What is Michael Zemaitis' MIPS score?

Michael Zemaitis' MIPS final score for performance year 2024 is 71 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Michael Zemaitis see?

CMS counts 153 Medicare patients who saw Michael Zemaitis in 2024, with an average age of 74.

Show 5 more questionsShow fewer questions

What services does Michael Zemaitis bill to Medicare?

In 2024, Michael Zemaitis' most billed Medicare services were hospital inpatient care (99233), critical care (99291) and hospital inpatient care (99223).

Has Michael Zemaitis received payments from drug or device companies?

CMS Open Payments shows $1,091 in general payments to Michael Zemaitis from 13 companies from 2020 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Michael Zemaitis been practicing?

Michael Zemaitis graduated from medical school in 2014, 12 years ago.

Does Michael Zemaitis do research?

Dmand AI links 3 publications to Michael Zemaitis, published from 2016 to 2018.

Who does Michael Zemaitis publish with?

Michael Zemaitis' most frequent co-authors are Walid Fouad Gellad, MD (1 shared paper).

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