Registry data as of Aug 27, 2026

Cynthia Stonnington, M.D

Psychiatry Physician · Scottsdale, AZ

Cynthia Stonnington, M.D is a psychiatry physician with a practice address in Scottsdale, Arizona, and NPI 1801879655, issued on Nov 25, 2005. Check the license (Arizona 19303, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1801879655
Name
Cynthia Stonnington
Credential
M.D
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
19303 AZ
48057 MN
Self-reported in NPPES; status is on the state search
Practice location
13400 E Shea Blvd, Scottsdale, AZ 85259
Phone
(480) 301-8000
Enumerated
Nov 25, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 13400 E Shea Blvd

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

  1. Rawad Abbas, MDNeurological Surgery Physician1255028825
  2. Abdelmohaymin Abdalla, MDStudent in an Organized Health Care Education/Training Program1871081505
  3. Hesham Mubarak Abdalla, M.B.B.S.Internal Medicine Physician1013696111
  4. Mahmoud Abdelnabi, MDCardiovascular Disease Physician1548934714
  5. Haidar Abdul-Muhsin, M.B.CH.B.Urology Physician1356755250
  6. Ali Abdulsahib, MDInfectious Disease Physician1417535030

Verify Cynthia Stonnington in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 19303
    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.

39% fewer Medicare Part D claims than the average psychiatry physician in 2024

616 Medicare Part D claims for 143 beneficiaries, against an average of 1,010 among the 32,287 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 14 claims were for opioids.

  1. Cynthia Stonnington616
  2. Specialty average1,010

Most prescribed

  1. Sertraline Hcl63 claims
  2. Escitalopram Oxalate54 claims
  3. Quetiapine Fumarate51 claims
  4. Clonazepam33 claims
  5. Trazodone Hcl26 claims
  6. Duloxetine Hcl25 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 Medicare quality score for 2023: 78.6 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 score69.1
  2. Costout of 100 · 30%59.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

One hospital or facility affiliation

  1. Mayo Clinic ArizonaScottsdale, AZ

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Psychiatry Physician providers in Arizona

There are 929 psychiatry physician records in Arizona.

Other psychiatry physician records in Arizona

  1. Osama Abulseoud, MDScottsdale, AZ1679654800
  2. Mary AckerleyTucson, AZ1801048012
  3. Nazila Adib, MDScottsdale, AZ1740202613
  4. Adrienne Adler-Neal, MD, PHDScottsdale, AZ1558990127
  5. Jose Agosto, M.D.Mesa, AZ1346323110
  6. Fayyaz Ahmad, M.D.Tempe, AZ1295741791
  7. Mehmud Ahmed, MDPhoenix, AZ1942221635
  8. Nicholas Ahrendt, M.D.Tucson, AZ1043744998
  9. Stephen AielloPrescott, AZ1740852532
  10. Samantha AkersTucson, AZ1609700061

Common questions

What is Cynthia Stonnington, M.D's NPI number?

Cynthia Stonnington, M.D's National Provider Identifier (NPI) is 1801879655, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Cynthia Stonnington, M.D 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 Cynthia Stonnington, M.D's license?

NPPES lists Arizona license number 19303, 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 Cynthia Stonnington, M.D prescribe under Medicare Part D?

In 2024, Cynthia Stonnington, M.D had 616 Medicare Part D claims for 143 beneficiaries; the average among psychiatry physician prescribers was 1,010. Part D covers Medicare prescriptions only.

What is Cynthia Stonnington, M.D's Medicare quality score?

The 2023 MIPS final score is 78.6 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), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.