NPPES file of Aug 9, 2026

Shannon Mihalacki, O.D.

Optometrist · Mars, PA

Shannon Mihalacki, O.D. is an optometrist with a practice address in Mars, Pennsylvania, and NPI 1912029000, issued on Apr 6, 2007. Check the license (Pennsylvania OEG001438, as entered in NPPES) with the Pennsylvania 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
1912029000
Name
Shannon Mihalacki
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
OEG001438 PA
Self-reported in NPPES; status is on the state search
Practice location
187 Scharberry LN, Mars, PA 16046
Phone
(724) 591-5501
Enumerated
Apr 6, 2007
Record last updated
Apr 6, 2023
Medicare enrollment
Enrolled (PECOS I20080221000392); accepts Medicare assignment
Medical or professional school
Pennsylvania College Of Optometry, 2004
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 187 Scharberry LN

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

  1. Michael Lacina, O.D.Optometrist1841632809

Verify Shannon Mihalacki in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license OEG001438
    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 Pennsylvania license search

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

44 Medicare Part D claims for 14 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Shannon Mihalacki44
  2. Specialty average277

Most prescribed

  1. Latanoprost21 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: $248.70

8 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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. Shannon Mihalacki$248.70
  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. Aeg Pennsylvania Professional IncMars, PA

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

Shannon Mihalacki among 2,640 optometrist records in Pennsylvania

Shannon Mihalacki, O.D. is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% 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 52% of them.

  • NPI issued2007 · 52% of these records are older, 38% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2004 · median 2004 among the 1,588 with a school on file
  • Record last updated2023 · 69% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 optometrist records list a practice address in Mars

They are 3 of the 164 NPPES records with a practice address in Mars, and 2,640 optometrist records in Pennsylvania.

The 8 optometrist records with the nearest ZIP codes

  1. Adam Dillner, O.D.Seven Fields, PA 160461407261225
  2. David English, ODSeven Fields, PA 160461407848047
  3. Michael Lacina, O.D.Mars, PA 160461841632809
  4. Maria Vitale, ODSeven Fields, PA 160461790492742
  5. Rebecca Woodring, ODMars, PA 160461841282522
  6. Kelly Donlan, O.D.Sarver, PA 160551245275197
  7. Rebecca Matscherz, O.D.Harmony, PA 160371497747620
  8. Amy Peterson, ODSaxonburg, PA 160561104939339

Common questions

What is Shannon Mihalacki, O.D.'s NPI number?

Shannon Mihalacki, O.D.'s National Provider Identifier (NPI) is 1912029000, issued on Apr 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Shannon Mihalacki, O.D. located?

The NPPES record lists a practice address at 187 Scharberry LN, Mars, PA, 16046. Phone: (724) 591-5501. Providers update this record themselves, so call before visiting.

How can I verify Shannon Mihalacki, O.D.'s license?

NPPES lists Pennsylvania license number OEG001438, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Shannon Mihalacki, O.D. prescribe under Medicare Part D?

In 2024, Shannon Mihalacki, O.D. had 44 Medicare Part D claims for 14 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.