Dr. Kirsten Sumner, MD
- Medicare services, 2024
- 1,683
- Medicare patients, 2024
- 362
- Part D claims, 2024
- 66
- MIPS score, 2024
- 86
- Hospital affiliations
- 3
- Practice address
- 350 West Thomas Road, Phoenix, AZ 85013
- Practice phone
- Call (602) 406-8225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Sumner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Kirsten Sumner is an orthopaedic hand surgery physician in Phoenix, Arizona
Dr. Sumner practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health.
Dr. Sumner's NPI, 1578981601, was assigned on April 5, 2014. Dr. Sumner graduated from Georgetown University School of Medicine in 2014. Dr. Sumner holds Arizona license 58876.
- NPI
- 1578981601NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941503130
- NPI enumeration date
- April 5, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (602) 406-8225
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kirsten Sumner practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona
Dr. Sumner's primary practice is Dignity Health St. Joseph's Hospital and Medical Center, at 350 West Thomas Road, Phoenix, AZ 85013 in Maricopa County. The practice phone is (602) 406-8225.
- Dignity Health St. Joseph's Hospital and Medical Center350 West Thomas Road, Phoenix, AZ 85013 · Maricopa CountyPhone(602) 406-8225
Source: Dmand AI Affiliation Data
Dr. Kirsten Sumner is affiliated with 6 sites of care and 3 medical groups
Dr. Sumner's primary practice is Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health. Dr. Sumner is also affiliated with Dignity Health Chandler Regional Medical Center. The medical group on file is St. Joseph's Faculty Physicians. Dmand AI also links Dr. Sumner to 1 more hospital, 3 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Kirsten Sumner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sumner practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health St. Joseph's Hospital and Medical Center | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across CommonSpirit Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Kirsten Sumner is one of 51 orthopaedic hand surgery physicians in Arizona
Hand surgery is Dr. Sumner's primary specialty in the NPI Registry, under taxonomy code 207XS0106X. Dr. Sumner is licensed in Arizona.
Specialties and state licenses
- Orthopaedic hand surgery, ArizonaPrimary
Orthopaedic hand surgery physicians near Dr. Sumner
Counts of orthopaedic hand surgery physicians 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. Kirsten Sumner billed Medicare for 1,683 services in 2024
CMS data shows 1,683 Medicare services from Dr. Sumner across 14 procedure codes in 2024, for 362 Medicare patients. Medicare paid $64,748 for them.
Dr. Sumner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 6962024: 6842%
- Office and hospital visits
- 2023: 4212024: 46611%
- Imaging
- 2023: 2882024: 3004%
- Surgery
- 2023: 1712024: 21928%
- Other services
- 2023: 02024: 14
Where Dr. Sumner's Medicare services took place, 2024
- In an office1,63597%
- In a facility483%
Dr. Sumner compared with the Arizona median for orthopaedic hand surgery physicians, 2024
- Dr. Sumner
- Arizona median
- Medicare services
- 1,683vs 2,33428% below
- Medicare patients
- 362vs 42715% below
- Part D claims
- 25vs 9674% below
Medians across 49 orthopaedic hand surgery physicians in Arizona with Dmand AI profiles that report each measure.
Dr. Sumner'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.
Need commercial claims for Dr. Sumner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sumner and other orthopaedic hand surgery physicians in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kirsten Sumner treated 362 Medicare patients in 2024, average age 73
CMS counts 362 Medicare patients who saw Dr. Sumner in 2024. The largest group is 65 to 74, with 195 patients. 75% of them have high cholesterol, and 67% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Sumner's median patient age at 61, with 58% women.
Dr. Sumner's Medicare patients by age, 2024
Dr. Sumner's Medicare patients by sex, 2024
- Women21459%
- Men14841%
Chronic conditions among Dr. Sumner's Medicare patients, 2024
- High cholesterol75%
- High blood pressure67%
- Arthritis59%
- Diabetes27%
- Ischemic heart disease27%
- Anxiety23%
- Mood disorders22%
- Chronic kidney disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sumner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kirsten Sumner wrote 66 Medicare Part D claims in 2024
In 2024, Dr. Sumner wrote 66 Medicare Part D claims for 59 patients. 95% of them were for generic drugs. CMS names the drug for 25 of them, across 1 drug with 11 or more claims each, at $179 in total drug cost. In 2023, CMS named 37 claims across 1 drug.
Dr. Sumner's Part D claims by kind of drug, 2024
- Generic63 claims95%
- Brand-name and other3 claims5%
Dr. Sumner'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. Sumner's Part D claims, 2024
- Opioids38%25 of 66 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: 372024: 2532%
Drugs named by CMS: 1 in 2024, 1 in 2023.
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. Kirsten Sumner 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. Sumner for performance year 2024, reported as part of a group. Dr. Sumner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 17 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Sumner, more than 58% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Sumner's MIPS scores, performance year 2024
- 86of 100Final score
- 76.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Sumner ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 58th percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Kirsten Sumner received $2,617 in industry payments from 2021 to 2025
CMS Open Payments shows 30 general payments to Dr. Sumner from 10 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 54% of the total. ImpactOrtho, Inc. paid the most, $1,367.
General payments to Dr. Sumner by program year, 2021 to 2025
General payments to Dr. Sumner by kind, 2021 to 2025
- Food and beverage$1,41754%
- Education$1,20046%
Companies that paid Dr. Sumner the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kirsten Sumner graduated from Georgetown University School of Medicine
Dr. Sumner graduated from Georgetown University School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Kirsten Sumner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Kirsten Sumner
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. Kirsten Sumner's NPI number?
Dr. Kirsten Sumner's NPI number is 1578981601. It was assigned on April 5, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Kirsten Sumner?
Dr. Kirsten Sumner is an orthopaedic hand surgery physician in Phoenix, Arizona. The primary specialty in the NPI Registry is Orthopaedic Hand Surgery Physician (taxonomy code 207XS0106X).
Where does Dr. Kirsten Sumner practice?
Dr. Sumner practices at 350 West Thomas Road, Phoenix, AZ 85013. Dr. Sumner's primary practice is Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona, part of CommonSpirit Health. Dmand AI also links Dr. Sumner to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Dr. Kirsten Sumner's office phone number?
The practice phone on file for Dr. Sumner is (602) 406-8225.
What is Dr. Kirsten Sumner's medical license number?
Dr. Sumner holds Arizona license 58876.
Which hospitals is Dr. Kirsten Sumner affiliated with?
Dr. Sumner practices at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix, Arizona. Dr. Sumner is also affiliated with Dignity Health Chandler Regional Medical Center. Dmand AI links Dr. Sumner to 1 more hospital.
What medical group is Dr. Kirsten Sumner part of?
Dr. Sumner is linked to St. Joseph's Faculty Physicians. Dmand AI links Dr. Sumner to 2 more medical groups.
Does Dr. Kirsten Sumner accept Medicare?
Yes. CMS data shows Dr. Sumner billed Medicare for 1,683 services in 2024, and Dr. Sumner accepts Medicare assignment.
What is Dr. Kirsten Sumner's MIPS score?
Dr. Sumner'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. Kirsten Sumner see?
CMS counts 362 Medicare patients who saw Dr. Sumner in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Kirsten Sumner bill to Medicare?
In 2024, Dr. Sumner's most billed Medicare services were injected or infused drug (J3301), diagnostic imaging (73130) and office visit, established patient (99213).
Where did Dr. Kirsten Sumner go to medical school?
Dr. Sumner graduated from Georgetown University School of Medicine in 2014.
What drugs does Dr. Kirsten Sumner prescribe most?
In 2024 Medicare Part D data, Dr. Sumner's most prescribed drugs by claims were Methylprednisolone.
Has Dr. Kirsten Sumner received payments from drug or device companies?
CMS Open Payments shows $2,617 in general payments to Dr. Sumner from 10 companies from 2021 to 2025. The largest total came from ImpactOrtho, Inc.
How long has Dr. Kirsten Sumner been practicing?
Dr. Sumner graduated from medical school in 2014, 12 years ago.
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