NPPES file of Aug 9, 2026

Zachary Mackay Tlumak, OD

Optometrist · West Haven, CT

Zachary Mackay Tlumak, OD is an optometrist with a practice address in West Haven, Connecticut, and NPI 1881257004, issued on Apr 15, 2019. Check the license (Connecticut 3121, as entered in NPPES) with the Connecticut board that licenses this profession; 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
1881257004
Name
Zachary Mackay Tlumak
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License numbers
3121 CT
OEG004113 PA
Self-reported in NPPES; status is on the state search
Practice location
950 Campbell Ave, West Haven, CT 06516
Phone
(203) 932-5711
Enumerated
Apr 15, 2019
Record last updated
Jan 25, 2024
Medicare enrollment
Enrolled (PECOS I20240304000008); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 2019
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 950 Campbell Ave

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

  1. Matthew Abbott, LCSWSocial Worker1790734986
  2. Erica Abel, PH.D.Clinical Psychologist1982971222
  3. Audrey Abelleira, PHARMDPharmacist1831671577
  4. Mary Abraham, PHARMDPharmacist1386344950
  5. Linda Accordino, RN, MSNGerontology Nurse Practitioner1396853289
  6. Jenna Adamowicz, PH.D.Clinical Psychologist1356271266

Verify Zachary Mackay Tlumak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 3121
    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
Find the Connecticut 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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54% fewer Medicare Part D claims than the average optometrist in 2024

127 Medicare Part D claims for 73 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Zachary Tlumak127
  2. Specialty average277

Most prescribed

  1. Latanoprost35 claims
  2. Neomycin-Polymyxin-Dexameth17 claims
  3. Cyclosporine13 claims
  4. Prednisolone Acetate12 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.

Industry payments in 2024: $55.19

2 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Zachary Tlumak$55.19
  2. Specialty average$769.99

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. Richard L Jahnle MD PCHavertown, PA

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

Zachary Mackay Tlumak among 675 optometrist records in Connecticut

Zachary Mackay Tlumak, OD is one of 675 optometrist records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 79% of them.

  • NPI issued2019 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2019 · median 2008 among the 447 with a school on file
  • Record last updated2024 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 optometrist records list a practice address in West Haven

They are 21 of the 1,356 NPPES records with a practice address in West Haven, and 675 optometrist records in Connecticut.

The 8 optometrist records with the nearest ZIP codes

  1. Sharon Bisighini-Fiske, O.D.West Haven, CT 065161912010372
  2. Stacy Byron, O.D.West Haven, CT 065161740577261
  3. Richard Daddio, ODWest Haven, CT 065161912960410
  4. Crystal Deluca, O.D.West Haven, CT 065161043445539
  5. Harsida Desai, ODWest Haven, CT 065161174046098
  6. Jonathan Hamilton, ODWest Haven, CT 065161467715615
  7. Charles Haskes, O.D.West Haven, CT 065161750474623
  8. Alphonse Inclima, O.D.West Haven, CT 065161740241751

Common questions

What is Zachary Mackay Tlumak, OD's NPI number?

Zachary Mackay Tlumak, OD's National Provider Identifier (NPI) is 1881257004, issued on Apr 15, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Zachary Mackay Tlumak, OD located?

The NPPES record lists a practice address at 950 Campbell Ave, West Haven, CT, 06516. Phone: (203) 932-5711. Providers update this record themselves, so call before visiting.

How can I verify Zachary Mackay Tlumak, OD's license?

NPPES lists Connecticut license number 3121, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Zachary Mackay Tlumak, OD prescribe under Medicare Part D?

In 2024, Zachary Mackay Tlumak, OD had 127 Medicare Part D claims for 73 beneficiaries; the average among optometrist prescribers was 277. 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.