NPPES file of Aug 9, 2026

Mark J. Garwin, M.D.

Anesthesiology Physician · Carbondale, IL

Mark J. Garwin, M.D. is an anesthesiology physician with a practice address in Carbondale, Illinois, and NPI 1326030396, issued on Aug 16, 2005. Check the license (Illinois 036077675, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326030396
Name
Mark J. Garwin
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
036077675 IL
Self-reported in NPPES; status is on the state search
Practice location
35 Albany RD, Carbondale, IL 62903
Phone
(888) 804-4330
Enumerated
Aug 16, 2005
Record last updated
Jun 14, 2023
Medicare enrollment
Enrolled (PECOS I20041014000441); accepts Medicare assignment
Medical or professional school
University Of Oklahoma College Of Medicine, 1976
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 35 Albany RD

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

  1. Staci Amero, CRNACertified Registered Nurse Anesthetist1467758375
  2. Medhat Ayad, M.D.Anesthesiology Physician1952489403
  3. Jennifer Clevenger, CRNACertified Registered Nurse Anesthetist1740656438
  4. Jane Kidwell, LCPCProfessional Counselor1033218086
  5. Jai Singh, MDAnesthesiology Physician1255333118
  6. Joseph Zueck, CRNACertified Registered Nurse Anesthetist1386001097

Verify Mark J. Garwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036077675
    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 Illinois 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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59% fewer Medicare Part D claims than the average anesthesiology physician in 2024

166 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 98% of claims.

  1. Mark Garwin166
  2. Specialty average402

Most prescribed

  1. Spravato163 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 85.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score79.9
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $160.75

10 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Garwin$160.75
  2. Specialty average$669.59

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. Northstar Anesthesia OF Illinois, LLCChicago Heights, IL

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

Mark J. Garwin among 2,575 anesthesiology physician records in Illinois

Mark J. Garwin, M.D. is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1976 · median 2006 among the 1,608 with a school on file
  • Record last updated2023 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 anesthesiology physician records list a practice address in Carbondale

They are 18 of the 1,088 NPPES records with a practice address in Carbondale, and 2,575 anesthesiology physician records in Illinois.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Medhat Ayad, M.D.Carbondale, IL 629031952489403
  2. Jai Singh, MDCarbondale, IL 629031255333118
  3. Ryan Stock, M.D.Carbondale, IL 629031134414618
  4. Vikram Bajwa, M.D.Carbondale, IL 629011811240187
  5. Edgar Bello Martinez, M.D.Carbondale, IL 629011699201384
  6. Alexandra Brown, MDCarbondale, IL 629011841879624
  7. Attila Dobos, MDCarbondale, IL 629011649765140
  8. Jeffrey Frakes, M.D.Carbondale, IL 629011407858806

Common questions

What is Mark J. Garwin, M.D.'s NPI number?

Mark J. Garwin, M.D.'s National Provider Identifier (NPI) is 1326030396, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark J. Garwin, M.D. located?

The NPPES record lists a practice address at 35 Albany RD, Carbondale, IL, 62903. Phone: (888) 804-4330. Providers update this record themselves, so call before visiting.

How can I verify Mark J. Garwin, M.D.'s license?

NPPES lists Illinois license number 036077675, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark J. Garwin, M.D. prescribe under Medicare Part D?

In 2024, Mark J. Garwin, M.D. had 166 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.

What is Mark J. Garwin, M.D.'s MIPS final score?

The 2023 MIPS final score is 85.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.