Mark Gunst, MD
Surgical Critical Care Physician · Chandler, AZ
Mark Gunst, MD is a surgical critical care physician with a practice address in Chandler, Arizona, and NPI 1144209842, issued on Jan 11, 2006. Check the license (Arizona 49959, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Gunst
- Credential
- MD
- Primary taxonomy
- Surgical Critical Care Physician 2086S0102X
- License numbers
- 49959 AZ
A93582 CA
M5738 TX
Self-reported in NPPES; status is on the state search - Practice location
- 485 S Dobson RD, Chandler, AZ 85224
- Phone
- (480) 728-4700
- Enumerated
- Jan 11, 2006
- Record last updated
- Feb 17, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 188326603 TX
- Medicare enrollment
- Enrolled (PECOS I20070710000882); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest surgical critical care physician records → All 51 in Arizona → Look up another NPI →
Also registered at 485 S Dobson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Gunst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 49959Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average surgical critical care physician in 2024
237 Medicare Part D claims for 79 beneficiaries, against an average of 64 among the 606 providers of this specialty who prescribed in Part D. 67 claims were for opioids.
Most prescribed
- Cyclobenzaprine Hcl68 claims
- Ibuprofen55 claims
- Acetaminophen-Codeine40 claims
- Hydrocodone-Acetaminophen19 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: $34,008.60
22 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 1,092 providers of this specialty with any payment received $2,183.62 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Bhs Physicians Network, IncSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Gunst among 51 surgical critical care physician records in Arizona
Mark Gunst, MD is one of 51 surgical critical care physician records with a practice address in Arizona. 94% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 75% newer
- In a Medicare fileYes · 94% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2001 · median 2009 among the 42 with a school on file
- Record last updated2015 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0102X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Critical Care Physician providers in Arizona
There are 51 surgical critical care physician records in Arizona.
All 51 in Arizona → Every provider in Chandler → Surgical Critical Care Physician nationwide →
The 8 surgical critical care physician records with the nearest ZIP codes
- Daniel Cucher, MDChandler, AZ 852241437460862
- Vafa Ghaemmaghami, M.D.Chandler, AZ 852241659352144
- Charles Hu, M.D.Chandler, AZ 852241700814118
- Adil Lokhandwala, M.D.Chandler, AZ 852241427300029
- Amanda Marsh Williams, MDChandler, AZ 852241659863553
- Jessica Sloan, MD, MPHChandler, AZ 852241477949071
- Nicholas Thiessen, MDChandler, AZ 852241053550301
- John Watt, M.S.Chandler, AZ 852241780849968
Common questions
What is Mark Gunst, MD's NPI number?
Mark Gunst, MD's National Provider Identifier (NPI) is 1144209842, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Gunst, MD located?
The NPPES record lists a practice address at 485 S Dobson RD, Chandler, AZ, 85224. Phone: (480) 728-4700. Providers update this record themselves, so call before visiting.
How can I verify Mark Gunst, MD's license?
NPPES lists Arizona license number 49959, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Gunst, MD prescribe under Medicare Part D?
In 2024, Mark Gunst, MD had 237 Medicare Part D claims for 79 beneficiaries; the average among surgical critical care physician prescribers was 64. 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.