Michael A. Marsh, M.D.
Otolaryngology Physician · Scottsdale, AZ
Michael A. Marsh, M.D. is an otolaryngology physician with a practice address in Scottsdale, Arizona, and NPI 1174547988, issued on Jul 26, 2006. Check the license (Arizona 79754, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Michael A. Marsh
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- 79754 AZ
C8388 AR
Self-reported in NPPES; status is on the state search - Practice location
- 20745 N Scottsdale RD Ste 105, Scottsdale, AZ 85255
- Phone
- (480) 534-4525
- Enumerated
- Jul 26, 2006
- Record last updated
- May 21, 2026
- Fax
- (480) 882-5051
- Medicaid IDs
- 100032240A OK
122738001 AR - Medicare enrollment
- Enrolled (PECOS I20110203001121); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 178 in Arizona → Look up another NPI →
Also registered at 20745 N Scottsdale RD Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vanessa Betancourt, AUD, CCC-AAudiologist1851666846
- Whitney Casper, AUDAudiologist1144667023
- Felicity France, PA-CSurgical Physician Assistant1528731544
- Vivian GuerraHearing Instrument Specialist1144064833
- Dianna Soweidan, D.OFamily Medicine Physician1265894760
Verify Michael A. Marsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 79754Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average otolaryngology physician in 2024
694 Medicare Part D claims for 291 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 80 claims were for opioids.
Most prescribed
- Fluticasone Propionate152 claims
- Cefdinir90 claims
- Ipratropium Bromide76 claims
- Tramadol Hcl51 claims
- Ondansetron Odt38 claims
- Levofloxacin35 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 MIPS final score for 2023 (Medicare payment program): 43.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $50.45
3 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Arkansas Center For Ear Nose Throat And Allergy PAFort Smith, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael A. Marsh among 178 otolaryngology physician records in Arizona
Michael A. Marsh, M.D. is one of 178 otolaryngology physician records with a practice address in Arizona. 78% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 42% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1984 · median 2000 among the 114 with a school on file
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Arizona
There are 178 otolaryngology physician records in Arizona.
All 178 in Arizona → Every provider in Scottsdale → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Franklyn Gergits, D.O.Scottsdale, AZ 852551790781250
- Roland Geretti, MDScottsdale, AZ 852581427352731
- Kurt Heiland, MDScottsdale, AZ 852581124149620
- Cheryl Mackechnie, MDScottsdale, AZ 852581548416324
- Rodrigo Bayon, M.D.Scottsdale, AZ 852591700079480
- Daniela Brake, MDScottsdale, AZ 852591427519255
- Sara Charney, MS, CCC-SLPScottsdale, AZ 852591225673254
- Nicholas Deep, M.D.Scottsdale, AZ 852591528403888
Common questions
What is Michael A. Marsh, M.D.'s NPI number?
Michael A. Marsh, M.D.'s National Provider Identifier (NPI) is 1174547988, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael A. Marsh, M.D. located?
The NPPES record lists a practice address at 20745 N Scottsdale RD Ste 105, Scottsdale, AZ, 85255. Phone: (480) 534-4525. Providers update this record themselves, so call before visiting.
How can I verify Michael A. Marsh, M.D.'s license?
NPPES lists Arizona license number 79754, 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 Michael A. Marsh, M.D. prescribe under Medicare Part D?
In 2024, Michael A. Marsh, M.D. had 694 Medicare Part D claims for 291 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Michael A. Marsh, M.D.'s MIPS final score?
The 2023 MIPS final score is 43.8 of 100. 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.