NPPES file of Aug 9, 2026

Mark Cowan, MD

Surgery Physician · Phoenix, AZ

Mark Cowan, MD is a surgery physician with a practice address in Phoenix, Arizona, and NPI 1740626183, issued on May 13, 2013. Check the license (Arizona R73820, as entered in NPPES) on the Arizona Medical Board; 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
1740626183
Name
Mark Cowan
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
R73820 AZ
Self-reported in NPPES; status is on the state search
Practice location
925 E Mcdowell RD FL 2, Phoenix, AZ 85006
Phone
(602) 839-3339
Enumerated
May 13, 2013
Record last updated
May 13, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(602) 839-3300
Medicare enrollment
Enrolled (PECOS I20190819002628); 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 925 E Mcdowell RD FL 2

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

  1. Cory Buschmann, MDInternal Medicine Physician1407293103
  2. Erin Kloos, M.D.Surgery Physician1255743779
  3. Cameron Meek, MDAnesthesiology Physician1942646211
  4. Ryan Shelhamer, MDSurgery Physician1265878615

Verify Mark Cowan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license R73820
    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 Arizona 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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23% fewer Medicare Part D claims than the average surgery physician in 2024

113 Medicare Part D claims for 63 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 34 claims were for opioids.

  1. Mark Cowan113
  2. Specialty average147

Most prescribed

  1. Hydrocodone-Acetaminophen28 claims
  2. Ondansetron Odt19 claims
  3. Ketorolac Tromethamine13 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.

Bills Medicare through 3 group practices

  1. Bear Lake County Memorial HospitalMontpelier, ID
  2. North Lincoln County Hospital DistrictCokeville, WY
  3. West Park Hospital DistrictCody, WY

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

Mark Cowan among 760 surgery physician records in Arizona

Mark Cowan, MD is one of 760 surgery physician records with a practice address in Arizona. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 63% of them.

  • NPI issued2013 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2013 · median 2006 among the 401 with a school on file
  • Record last updated2013 · 45% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Arizona

There are 760 surgery physician records in Arizona.

The 8 surgery physician records with the nearest ZIP codes

  1. Charles Allen, M.D.Phoenix, AZ 850061477513505
  2. James Austin, MDPhoenix, AZ 850061265411763
  3. Michael Conway, M.D.Phoenix, AZ 850061386649564
  4. G. Dabrowski, MDPhoenix, AZ 850061881665115
  5. Corey Detlefs, MDPhoenix, AZ 850061700842457
  6. John Ferrara, M.D.Phoenix, AZ 850061700846771
  7. Scott Graham, MDPhoenix, AZ 850061154301653
  8. Steven Johnson, M.D.Phoenix, AZ 850061336112374

Common questions

What is Mark Cowan, MD's NPI number?

Mark Cowan, MD's National Provider Identifier (NPI) is 1740626183, issued on May 13, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Mark Cowan, MD located?

The NPPES record lists a practice address at 925 E Mcdowell RD FL 2, Phoenix, AZ, 85006. Phone: (602) 839-3339. Providers update this record themselves, so call before visiting.

How can I verify Mark Cowan, MD's license?

NPPES lists Arizona license number R73820, 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 Cowan, MD prescribe under Medicare Part D?

In 2024, Mark Cowan, MD had 113 Medicare Part D claims for 63 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.