NPPES file of Aug 9, 2026

Andrew Michalak, M.D.

Neurology Physician · Greenwich, CT

Andrew Michalak, M.D. is a neurology physician with a practice address in Greenwich, Connecticut, and NPI 1720440985, issued on Mar 25, 2016. Check the license on the Connecticut Medical Examining Board; 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
1720440985
Name
Andrew Michalak
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
299793 NY
Self-reported in NPPES; status is on the state search
Practice location
5 Perryridge RD, Greenwich, CT 06830
Phone
(203) 863-3409
Enumerated
Mar 25, 2016
Record last updated
Nov 14, 2024
Medicare enrollment
Enrolled (PECOS I20230914001375); accepts Medicare assignment
Medical or professional school
New York Medical College, 2016
Telehealth
Offers telehealth (CMS)
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 5 Perryridge RD

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

  1. Tena AbrahamPharmacist1649838905
  2. Hanief Abrahams, M.D.Anesthesiology Physician1497798235
  3. Diana Adams, M.D.Maternal & Fetal Medicine Physician1255300653
  4. Saheeb AhmedStudent in an Organized Health Care Education/Training Program1326626748
  5. Rachel Alfandre, LCSWClinical Social Worker1497077259
  6. Vicki Altmeyer, M.D.Anatomic Pathology & Clinical Pathology Physician1700807898

Verify Andrew Michalak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck 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 Connecticut license search

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84% fewer Medicare Part D claims than the average neurology physician in 2024

219 Medicare Part D claims for 54 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.

  1. Andrew Michalak219
  2. Specialty average1,370

Most prescribed

  1. Levetiracetam50 claims
  2. Lacosamide33 claims
  3. Clobazam15 claims
  4. Lamotrigine14 claims
  5. Xcopri13 claims
  6. Levetiracetam Er11 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): 84.5 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%54.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $177.76

1 payment: food and beverage; the largest payer was Neuropace, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Andrew Michalak$177.76
  2. Specialty average$8,318.07

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. New York UniversityNew York, NY

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

Andrew Michalak among 345 neurology physician records in Connecticut

Andrew Michalak, M.D. is one of 345 neurology physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 71% of them.

  • NPI issued2016 · 71% of these records are older, 25% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2016 · median 2009 among the 216 with a school on file
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Connecticut

There are 345 neurology physician records in Connecticut.

The 8 neurology physician records with the nearest ZIP codes

  1. David Hahn, MDGreenwich, CT 068301053625459
  2. Matthew McConnell, MDGreenwich, CT 068301699018044
  3. James Morris, M.D. PH.D.Greenwich, CT 068301215969985
  4. Frederick Nahm, MDGreenwich, CT 068301548242647
  5. Jennifer Werely, M.D.Greenwich, CT 068301225265028
  6. Lori Jensen, MDGreenwich, CT 068311619934130
  7. Stanley Resor, M.D.Greenwich, CT 068311205947306
  8. Alice Rusk, M.D.Greenwich, CT 068311508971318

Common questions

What is Andrew Michalak, M.D.'s NPI number?

Andrew Michalak, M.D.'s National Provider Identifier (NPI) is 1720440985, issued on Mar 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Andrew Michalak, M.D. located?

The NPPES record lists a practice address at 5 Perryridge RD, Greenwich, CT, 06830. Phone: (203) 863-3409. Providers update this record themselves, so call before visiting.

How can I verify Andrew Michalak, M.D.'s license?

Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Andrew Michalak, M.D. prescribe under Medicare Part D?

In 2024, Andrew Michalak, M.D. had 219 Medicare Part D claims for 54 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Andrew Michalak, M.D.'s MIPS final score?

The 2023 MIPS final score is 84.5 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.