Ryan Richard Gassner, MD
Internal Medicine Physician · Scottsdale, AZ
Ryan Richard Gassner, MD is an internal medicine physician with a practice address in Scottsdale, Arizona, and NPI 1033979331, issued on Mar 21, 2024. Check the license (Arizona R80857, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ryan Richard Gassner
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R80857 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 13400 E Shea Blvd, Scottsdale, AZ 85259
- Phone
- (480) 301-8000
- Enumerated
- Mar 21, 2024
- Record last updated
- May 16, 2024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ryan Richard Gassner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license R80857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
44 Medicare Part D claims for 25 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Ryan Richard Gassner among 2,853 internal medicine physician records in Arizona
Ryan Richard Gassner, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 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 2024, is newer than 93% of them.
- NPI issued2024 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
344 internal medicine physician records list a practice address in Scottsdale
They are 344 of the 11,008 NPPES records with a practice address in Scottsdale, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Scottsdale → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Hanson, M.D.Scottsdale, AZ 852591417939828
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- Stephanie Hines, MDScottsdale, AZ 852591710976444
- Erum Jadoon, MDScottsdale, AZ 852591720071749
- Bruce Kimbel, M.D.Scottsdale, AZ 852591568444321
- Steven Krotzer, M.D.Scottsdale, AZ 852591972585354
- Frank Maguire, M.D.Scottsdale, AZ 852591659374189
- Pasquale Palumbo, M.D.Scottsdale, AZ 852591700869088
Common questions
What is Ryan Richard Gassner, MD's NPI number?
Ryan Richard Gassner, MD's National Provider Identifier (NPI) is 1033979331, issued on Mar 21, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Richard Gassner, MD located?
The NPPES record lists a practice address at 13400 E Shea Blvd, Scottsdale, AZ, 85259. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Ryan Richard Gassner, MD's license?
NPPES lists Arizona license number R80857, 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 Ryan Richard Gassner, MD prescribe under Medicare Part D?
In 2024, Ryan Richard Gassner, MD had 44 Medicare Part D claims for 25 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.