Dr. Cynthia M. Stonnington, MD

  • Scottsdale, AZ
  • Psychiatrist
NPI1801879655PAC ID2567405343
Medicare services, 2024
444
Medicare patients, 2024
193
Part D claims, 2024
616
Publications
47
MIPS score, 2024
86
Practice address
13400 East Shea Boulevard, Scottsdale, AZ 85259
Practice phone
Call (480) 342-4201
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayo Clinic Ambulatory Surgery Center - Scottsdale

Surgery Center - Medicare-Certified · Scottsdale, Arizona

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Dr. Cynthia M. Stonnington is a psychiatrist in Scottsdale, Arizona

Dr. Stonnington practices at Mayo Clinic Ambulatory Surgery Center - Scottsdale in Scottsdale, Arizona.

Dr. Stonnington's NPI, 1801879655, was assigned on November 25, 2005. Dr. Stonnington graduated from Mayo Medical School in 1986. Dr. Stonnington holds Arizona license 19303.

NPI and contact details
Medicare PAC ID
2567405343
NPI enumeration date
November 25, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(480) 342-4201
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
66
Medical school graduation
1986

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Cynthia M. Stonnington practices at Mayo Clinic Ambulatory Surgery Center - Scottsdale in Scottsdale, Arizona

Dr. Stonnington's primary practice is Mayo Clinic Ambulatory Surgery Center - Scottsdale, at 13400 East Shea Boulevard, Scottsdale, AZ 85259. The practice phone is (480) 342-4201.

  • Mayo Clinic Ambulatory Surgery Center - Scottsdale
    13400 East Shea Boulevard, Scottsdale, AZ 85259Phone(480) 342-4201

Source: Dmand AI Affiliation Data

Dr. Cynthia M. Stonnington is affiliated with 2 sites of care and 1 medical group

Dr. Stonnington's primary practice is Mayo Clinic Ambulatory Surgery Center - Scottsdale in Scottsdale, Arizona. Dr. Stonnington is also affiliated with Mayo Clinic Hospital - Phoenix. The medical group on file is Mayo Clinic Arizona. Dr. Stonnington's employer is on file too: a surgery center (asc).

See all 3 affiliations for Dr. Stonnington

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Cynthia M. Stonnington's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stonnington practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mayo Clinic Ambulatory Surgery Center - ScottsdaleAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Cynthia M. Stonnington is one of 647 psychiatrists in Arizona

Psychiatry is Dr. Stonnington's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Stonnington's licenses on file in 2 states: Arizona and Minnesota.

Specialties and state licenses

  • Psychiatry, ArizonaPrimaryLicense 19303 · taxonomy 2084P0800X
  • Minnesota licenseLicense 48057

Psychiatrists near Dr. Stonnington

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Cynthia M. Stonnington billed Medicare for 444 services in 2024

CMS data shows 444 Medicare services from Dr. Stonnington across 5 procedure codes in 2024, for 193 Medicare patients. Medicare paid $39,937 for them. Every service was in an office.

Medicare services, 2024444
Medicare patients193
Paid by Medicare$39,937
Procedure codes5

Dr. Stonnington's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2722024: 2938%
Other services
2023: 02024: 151

Dr. Stonnington compared with the Arizona median for psychiatrists, 2024

  • Dr. Stonnington
  • Arizona median
Medicare services
444vs 1183.8 times
Medicare patients
193vs 385.1 times
Part D claims
498vs 1403.6 times

Medians across 712 psychiatrists in Arizona with Dmand AI profiles that report each measure.

Dr. Stonnington's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Stonnington

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Cynthia M. Stonnington treated 193 Medicare patients in 2024, average age 71

CMS counts 193 Medicare patients who saw Dr. Stonnington in 2024. The largest group is 65 to 74, with 85 patients. 74% of them have mood disorders, and 73% have anxiety. 9% are also on Medicaid. Their average risk score is 1.85, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Stonnington's median patient age at 64, with 61% women.

Medicare patients, 2024193
Average age71
Average risk score1.85
Also on Medicaid9%

Dr. Stonnington's Medicare patients by age, 2024

Dr. Stonnington's Medicare patients by sex, 2024

  • Women11962%
  • Men7438%

Chronic conditions among Dr. Stonnington's Medicare patients, 2024

  1. Mood disorders74%
  2. Anxiety73%
  3. High cholesterol72%
  4. High blood pressure67%
  5. Depression64%
  6. Arthritis50%
  7. Chronic kidney disease32%
  8. Diabetes28%

Share of Medicare patients with each condition. A patient can have several.

Dr. Stonnington's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women61%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Cynthia M. Stonnington wrote 616 Medicare Part D claims in 2024

In 2024, Dr. Stonnington wrote 616 Medicare Part D claims for 143 patients. 97% of them were for generic drugs. CMS names the drug for 498 of them, across 20 drugs with 11 or more claims each, at $10,383 in total drug cost. In 2023, CMS named 426 claims across 15 drugs.

Part D claims, 2024616
Drugs named by CMS20
Total drug cost$10,383
Part D patients143

Dr. Stonnington's Part D claims by kind of drug, 2024

  • Generic598 claims97%
  • Brand-name18 claims3%

Dr. Stonnington's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Stonnington's Part D claims, 2024

  • Opioids2%14 of 616 claims
  • Antipsychotics, patients 65 and over13%80 of 616 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 4262024: 49817%

Drugs named by CMS: 20 in 2024, 15 in 2023.

See all prescribing by Dr. Stonnington

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Cynthia M. Stonnington scored 86 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Stonnington for performance year 2024, reported as part of a group. Dr. Stonnington accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Stonnington as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Stonnington's MIPS scores, performance year 2024

  • 86of 100Final score
  • 78.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 77of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Cynthia M. Stonnington has 47 publications on record

Dmand AI links 47 papers to Dr. Stonnington, published from 2007 to 2025. 2022 was the busiest year, with 5. The most frequent topics are Neuropsychological Tests, Alzheimer Disease and Cognition. Dr. Stonnington has published most often in Alzheimer Dis Assoc Disord. Dr. Stonnington's most frequent co-authors are Richard J. Caselli, MD, Eric M. Reiman, MD and Yonas Endale Geda, MD, MS.

Papers47
Years published2007 to 2025

Dr. Stonnington's papers by year, 2015 to 2025

Topics Dr. Stonnington writes about most

  • Neuropsychological Tests
  • Alzheimer Disease
  • Cognition
  • Cognitive Dysfunction
  • Magnetic Resonance Imaging
  • Apolipoprotein E4
  • Disease Progression
  • Affect

Dr. Stonnington's most frequent co-authors

Recent publications by Dr. Stonnington

See all 47 publications and co-authors

See who Dr. Stonnington researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stonnington works with, so you can find a warm path to the right psychiatrists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Cynthia M. Stonnington received $874 in industry payments from 2016 to 2017

CMS Open Payments shows 4 general payments to Dr. Stonnington from 3 drug and device companies from 2016 to 2017. Travel and lodging make up the largest share, 84% of the total. Amgen Inc. paid the most, $731.

General payments to Dr. Stonnington by program year, 2016 to 2017

General payments to Dr. Stonnington by kind, 2016 to 2017

$874in total
  • Travel and lodging$73184%
  • Food and beverage$11213%
  • Education$303%

Companies that paid Dr. Stonnington the most, 2016 to 2017

Share is of all general payments to this clinician.

See all payments to Dr. Stonnington

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Cynthia M. Stonnington graduated from Mayo Medical School

Dr. Stonnington graduated from Mayo Medical School in 1986.

  1. Medical schoolMayo Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Cynthia M. Stonnington's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Cynthia M. Stonnington

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Cynthia M. Stonnington's NPI number?

Dr. Cynthia M. Stonnington's NPI number is 1801879655. It was assigned on November 25, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Cynthia M. Stonnington?

Dr. Cynthia M. Stonnington is a psychiatrist in Scottsdale, Arizona. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Cynthia M. Stonnington practice?

Dr. Stonnington practices at 13400 East Shea Boulevard, Scottsdale, AZ 85259. Dr. Stonnington's primary practice is Mayo Clinic Ambulatory Surgery Center - Scottsdale in Scottsdale, Arizona.

What is Dr. Cynthia M. Stonnington's office phone number?

The practice phone on file for Dr. Stonnington is (480) 342-4201.

What is Dr. Cynthia M. Stonnington's medical license number?

Dr. Stonnington holds Arizona license 19303, one of the licenses on file in 2 states.

Which states has Dr. Cynthia M. Stonnington been licensed in?

Dmand AI has state licenses on file for Dr. Stonnington in Arizona and Minnesota.

Which hospitals is Dr. Cynthia M. Stonnington affiliated with?

Dr. Stonnington is affiliated with Mayo Clinic Hospital - Phoenix.

What medical group is Dr. Cynthia M. Stonnington part of?

Dr. Stonnington is linked to Mayo Clinic Arizona.

Does Dr. Cynthia M. Stonnington accept Medicare?

Yes. CMS data shows Dr. Stonnington billed Medicare for 444 services in 2024, and Dr. Stonnington accepts Medicare assignment.

Does Dr. Cynthia M. Stonnington offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Stonnington as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Dr. Cynthia M. Stonnington's MIPS score?

Dr. Stonnington's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.

How many Medicare patients does Dr. Cynthia M. Stonnington see?

CMS counts 193 Medicare patients who saw Dr. Stonnington in 2024, with an average age of 71.

What services does Dr. Cynthia M. Stonnington bill to Medicare?

In 2024, Dr. Stonnington's most billed Medicare services were office visit, established patient (99215), medicare service (G2212) and office visit, established patient (99214).

Where did Dr. Cynthia M. Stonnington go to medical school?

Dr. Stonnington graduated from Mayo Medical School in 1986.

What drugs does Dr. Cynthia M. Stonnington prescribe most?

In 2024 Medicare Part D data, Dr. Stonnington's most prescribed drugs by claims were Sertraline HCl, Escitalopram Oxalate and Quetiapine Fumarate.

Has Dr. Cynthia M. Stonnington received payments from drug or device companies?

CMS Open Payments shows $874 in general payments to Dr. Stonnington from 3 companies from 2016 to 2017. The largest total came from Amgen Inc.

How long has Dr. Cynthia M. Stonnington been practicing?

Dr. Stonnington graduated from medical school in 1986, 40 years ago.

Does Dr. Cynthia M. Stonnington do research?

Dmand AI links 47 publications to Dr. Stonnington, published from 2007 to 2025.

Who does Dr. Cynthia M. Stonnington publish with?

Dr. Stonnington's most frequent co-authors are Richard J. Caselli, MD (17 shared papers), Eric M. Reiman, MD (9 shared papers) and Yonas Endale Geda, MD, MS (6 shared papers).

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