NPPES file of Aug 9, 2026

Nicolas Evan Merzlak, DO

Family Medicine Physician · Cranberry Township, PA

Nicolas Evan Merzlak, DO is a family medicine physician with a practice address in Cranberry Township, Pennsylvania, and NPI 1235751140, issued on May 13, 2020. Check the license (Pennsylvania OS022853, as entered in NPPES) on the Pennsylvania Department of State (PALS); 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
1235751140
Name
Nicolas Evan Merzlak
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OS022853 PA
Self-reported in NPPES; status is on the state search
Practice location
20397 Route 19 Ste 330, Cranberry Township, PA 16066
Phone
(724) 772-3300
Enumerated
May 13, 2020
Record last updated
Sep 1, 2023
Fax
(724) 772-3360
Medicare enrollment
Enrolled (PECOS I20230915002719); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2020
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 20397 Route 19 Ste 330

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

  1. Dawn BallFamily Nurse Practitioner1669854592
  2. Laura Horning, CRNPFamily Nurse Practitioner1346730595
  3. Rhea Marinstein, M.D.Family Medicine Physician1891711578
  4. Kady Miletti, DOFamily Medicine Physician1245610484
  5. Alison O'Donnell, DOGeriatric Medicine (Internal Medicine) Physician1093100356
  6. David Swan, M.D.Family Medicine Physician1376569053

Verify Nicolas Evan Merzlak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license OS022853
    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
Open the Pennsylvania 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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21% fewer Medicare Part D claims than the average family medicine physician in 2024

2,793 Medicare Part D claims for 308 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 11 claims were for opioids.

  1. Nicolas Merzlak2,793
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium241 claims
  2. Lisinopril150 claims
  3. Levothyroxine Sodium126 claims
  4. Amlodipine Besylate109 claims
  5. Rosuvastatin Calcium104 claims
  6. Omeprazole95 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: $21.07

2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nicolas Merzlak$21.07
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Allegheny ClinicCranberry Township, PA
  2. Keystone Rehabilitation Systems IncSeven Fields, PA
  3. Mrs Physical TherapyErie, PA

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

Nicolas Evan Merzlak among 7,483 family medicine physician records in Pennsylvania

Nicolas Evan Merzlak, DO is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 83% of them.

  • NPI issued2020 · 83% of these records are older, 14% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2020 · median 2005 among the 4,529 with a school on file
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 family medicine physician records list a practice address in Cranberry Township

They are 14 of the 396 NPPES records with a practice address in Cranberry Township, and 7,483 family medicine physician records in Pennsylvania.

The 8 family medicine physician records with the nearest ZIP codes

  1. Margaret BehrCranberry Township, PA 160661194044917
  2. Barbara Fardo, D.O.Cranberry Twp, PA 160661902890270
  3. Philip IozziCranberry Twp, PA 160661215931019
  4. Kirsten Lin, MDCranberry Township, PA 160661568660975
  5. Sunjay Mannan, MDCranberry Township, PA 160661467892794
  6. Rhea Marinstein, M.D.Cranberry Township, PA 160661891711578
  7. Kady Miletti, DOCranberry Township, PA 160661245610484
  8. Harry Myers, D.O.Cranberry Township, PA 160661932134178

Common questions

What is Nicolas Evan Merzlak, DO's NPI number?

Nicolas Evan Merzlak, DO's National Provider Identifier (NPI) is 1235751140, issued on May 13, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Nicolas Evan Merzlak, DO located?

The NPPES record lists a practice address at 20397 Route 19 Ste 330, Cranberry Township, PA, 16066. Phone: (724) 772-3300. Providers update this record themselves, so call before visiting.

How can I verify Nicolas Evan Merzlak, DO's license?

NPPES lists Pennsylvania license number OS022853, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nicolas Evan Merzlak, DO prescribe under Medicare Part D?

In 2024, Nicolas Evan Merzlak, DO had 2,793 Medicare Part D claims for 308 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.