NPPES file of Aug 9, 2026

Francis Mathias Marchak

Surgery Physician · Santa Cruz, CA

Francis Mathias Marchak is a surgery physician with a practice address in Santa Cruz, California, and NPI 1457811754, issued on Mar 22, 2019. Check the license (California A198360, as entered in NPPES) on the Medical Board of California; 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
1457811754
Name
Francis Mathias Marchak
Primary taxonomy
Surgery Physician 208600000X
License number
A198360 CA
Self-reported in NPPES; status is on the state search
Practice location
2911 Chanticleer Ave, Santa Cruz, CA 95065
Phone
(831) 477-2350
Enumerated
Mar 22, 2019
Record last updated
Oct 16, 2024
Medicare enrollment
Enrolled (PECOS I20241003000788); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 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 2911 Chanticleer Ave

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

  1. Stephanie Agoncillo, PA-CPhysician Assistant1427425172
  2. Michael Burns, PA-CSurgical Physician Assistant1588208698
  3. Kayla Cushner, CNMAdvanced Practice Midwife1518304013
  4. Rami Dakkuri, MDSpecialist1558318758
  5. Christopher Desimone, D.O.Surgery Physician1942620067
  6. Joseph FabrySurgery Physician1982684569

Verify Francis Mathias Marchak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A198360
    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 California 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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81% fewer Medicare Part D claims than the average surgery physician in 2024

28 Medicare Part D claims for 19 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 17 claims were for opioids.

  1. Francis Marchak28
  2. Specialty average147

Most prescribed

  1. Oxycodone Hcl16 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: $227.36

3 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Francis Marchak$227.36
  2. Specialty average$3,513.80

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. Sutter Bay Medical FoundationSanta Cruz, CA

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

Francis Mathias Marchak among 3,118 surgery physician records in California

Francis Mathias Marchak is one of 3,118 surgery physician records with a practice address in California. 75% 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 91% of them.

  • NPI issued2019 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2019 · median 2003 among the 1,901 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in California

There are 3,118 surgery physician records in California.

The 8 surgery physician records with the nearest ZIP codes

  1. David Albritton, MDSanta Cruz, CA 950651407818248
  2. Isaac Chankai, MDSanta Cruz, CA 950651922259720
  3. Joseph FabrySanta Cruz, CA 950651982684569
  4. Matthew Hansman, MDSanta Cruz, CA 950651831179704
  5. Kathleen Hertzer, M.D.Santa Cruz, CA 950651467778217
  6. Marcus Kwan, M.D.Santa Cruz, CA 950651891788592
  7. Louis Lee, MDSanta Cruz, CA 950651093972192
  8. Rodney Lowe, M.D.Santa Cruz, CA 950651891867560

Common questions

What is Francis Mathias Marchak's NPI number?

Francis Mathias Marchak's National Provider Identifier (NPI) is 1457811754, issued on Mar 22, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Francis Mathias Marchak located?

The NPPES record lists a practice address at 2911 Chanticleer Ave, Santa Cruz, CA, 95065. Phone: (831) 477-2350. Providers update this record themselves, so call before visiting.

How can I verify Francis Mathias Marchak's license?

NPPES lists California license number A198360, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Francis Mathias Marchak prescribe under Medicare Part D?

In 2024, Francis Mathias Marchak had 28 Medicare Part D claims for 19 beneficiaries; the average among surgery physician prescribers was 147. 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.