NPPES file of Aug 9, 2026

Mark A. Bonasso, PA-C

Physician Assistant · South Haven, MI

Mark A. Bonasso, PA-C is a physician assistant with a practice address in South Haven, Michigan, and NPI 1396764841, issued on Jul 18, 2006. Check the license (Michigan 5601003771, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396764841
Name
Mark A. Bonasso
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
5601003771 MI
Self-reported in NPPES; status is on the state search
Practice location
950 S Bailey Ave Ste 1, South Haven, MI 49090
Phone
(269) 639-2866
Enumerated
Jul 18, 2006
Record last updated
Mar 19, 2024
Medicare enrollment
Enrolled (PECOS I20080122000666); accepts Medicare assignment
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 S Bailey Ave Ste 1

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

  1. Kathleen MartinezPhysician Assistant1508401019

Verify Mark A. Bonasso in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 5601003771
    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 Michigan license search

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Bills Medicare through one group practice

  1. Regents OF The University OF MichiganAnn Arbor, MI

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

Mark A. Bonasso among 6,989 physician assistant records in Michigan

Mark A. Bonasso, PA-C is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 83% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1998 · median 2017 among the 4,739 with a school on file
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 physician assistant records list a practice address in South Haven

They are 7 of the 168 NPPES records with a practice address in South Haven, and 6,989 physician assistant records in Michigan.

The 8 physician assistant records with the nearest ZIP codes

  1. Evan Gillo, PA-CSouth Haven, MI 490901013225549
  2. Kathleen MartinezSouth Haven, MI 490901508401019
  3. Brice Miller, PA-CSouth Haven, MI 490901336120427
  4. Anne Slachta, PA-CSouth Haven, MI 490901164457669
  5. James Wertheimer, PASouth Haven, MI 490901891885281
  6. Marcus WollakSouth Haven, MI 490901417572827
  7. Andrea Carlin, P.A.Sturgis, MI 490911821064601
  8. Eric Comer, PA-CThree Rivers, MI 490931891028809

Common questions

What is Mark A. Bonasso, PA-C's NPI number?

Mark A. Bonasso, PA-C's National Provider Identifier (NPI) is 1396764841, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Bonasso, PA-C located?

The NPPES record lists a practice address at 950 S Bailey Ave Ste 1, South Haven, MI, 49090. Phone: (269) 639-2866. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Bonasso, PA-C's license?

NPPES lists Michigan license number 5601003771, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity 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.