Dr. Bess Catherine Stillman, MD
- Medicare services, 2024
- 281
- Medicare patients, 2024
- 284
- Part D claims, 2024
- 63
- MIPS score, 2024
- 86
- Hospital affiliations
- 2
- Practice address
- 5777 East Mayo Boulevard, Phoenix, AZ 85054
- Practice phone
- Call (480) 342-4201
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stillman's professional email, personal email and mobile number
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Dr. Bess Catherine Stillman is an emergency medicine physician in Phoenix, Arizona
Dr. Stillman practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic.
Dr. Stillman's NPI, 1548553993, was assigned on May 18, 2011. Dr. Stillman graduated from University of Arizona College of Medicine in 2011. Dr. Stillman holds Arizona license 56261.
- NPI
- 1548553993NPI Registry (opens in a new tab)
- NPI enumeration date
- May 18, 2011
- NPI status
- Active
- Practice phone
- (480) 342-4201
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Bess Catherine Stillman practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona
Dr. Stillman's primary practice is Mayo Clinic Hospital - Phoenix, at 5777 East Mayo Boulevard, Phoenix, AZ 85054 in Maricopa County. The practice phone is (480) 342-4201.
- Mayo Clinic Hospital - Phoenix5777 East Mayo Boulevard, Phoenix, AZ 85054 · Maricopa CountyPhone(480) 342-4201
Source: Dmand AI Affiliation Data
Dr. Bess Catherine Stillman is affiliated with 3 sites of care and 10 medical groups
Dr. Stillman's primary practice is Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic. Dr. Stillman is also affiliated with Brookdale Hospital Medical Center. The medical group on file is Mayo Clinic Arizona. Dmand AI also links Dr. Stillman to 9 more medical groups and 1 ambulatory surgery center, 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. Bess Catherine Stillman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stillman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital - Phoenix | Available with a free account |
| +2 more sites and 9 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bess Catherine Stillman is one of 1,360 emergency medicine physicians in Arizona
Emergency medicine is Dr. Stillman's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Stillman's licenses on file in 2 states: Arizona and New York.
Specialties and state licenses
- Emergency medicine, ArizonaPrimary
- New York license
Emergency medicine physicians near Dr. Stillman
Counts of emergency medicine 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. Bess Catherine Stillman billed Medicare for 281 services in 2024
CMS data shows 281 Medicare services from Dr. Stillman across 2 procedure codes in 2024, for 284 Medicare patients. Medicare paid $34,241 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stillman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4542024: 28138%
Dr. Stillman compared with the Arizona median for emergency medicine physicians, 2024
- Dr. Stillman
- Arizona median
- Medicare services
- 281vs 21630% above
- Medicare patients
- 284vs 21035% above
- Part D claims
- 11vs 5078% below
Medians across 1,326 emergency medicine physicians in Arizona with Dmand AI profiles that report each measure.
Dr. Stillman'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stillman and other emergency medicine physicians in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bess Catherine Stillman treated 284 Medicare patients in 2024, average age 75
CMS counts 284 Medicare patients who saw Dr. Stillman in 2024. The largest group is 75 to 84, with 110 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 2.21, 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. Stillman's median patient age at 72, with 56% women.
Dr. Stillman's Medicare patients by age, 2024
Dr. Stillman's Medicare patients by sex, 2024
- Women14651%
- Men13849%
Chronic conditions among Dr. Stillman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Chronic kidney disease40%
- Ischemic heart disease38%
- Mood disorders35%
- Anxiety34%
- Heart failure33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stillman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bess Catherine Stillman wrote 63 Medicare Part D claims in 2024
In 2024, Dr. Stillman wrote 63 Medicare Part D claims for 45 patients. 89% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $96 in total drug cost. In 2022, CMS named 14 claims across 1 drug.
Dr. Stillman's Part D claims by kind of drug, 2024
- Generic56 claims89%
- Brand-name and other7 claims11%
Dr. Stillman's most prescribed drugs by claims, 2023
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. Stillman's Part D claims, 2024
- Antibiotics41%26 of 63 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 142023: 1121%
Drugs named by CMS: 1 in 2023, 1 in 2022.
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. Bess Catherine Stillman 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. Stillman for performance year 2024, reported as part of a group.
Dr. Stillman'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.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Bess Catherine Stillman received $102 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Stillman from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $102.
Companies that paid Dr. Stillman the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Bess Catherine Stillman graduated from University of Arizona College of Medicine
Dr. Stillman graduated from University of Arizona College of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Bess Catherine Stillman'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 | Clinician Public Reporting: Overall MIPS Performance (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. Bess Catherine Stillman
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What is Dr. Bess Catherine Stillman's NPI number?
Dr. Bess Catherine Stillman's NPI number is 1548553993. It was assigned on May 18, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Bess Catherine Stillman?
Dr. Bess Catherine Stillman is an emergency medicine physician in Phoenix, Arizona. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Bess Catherine Stillman practice?
Dr. Stillman practices at 5777 East Mayo Boulevard, Phoenix, AZ 85054. Dr. Stillman's primary practice is Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic. Dmand AI also links Dr. Stillman to 9 medical groups and 1 ambulatory surgery center.
What is Dr. Bess Catherine Stillman's office phone number?
The practice phone on file for Dr. Stillman is (480) 342-4201.
What is Dr. Bess Catherine Stillman's medical license number?
Dr. Stillman holds Arizona license 56261, one of the licenses on file in 2 states.
Which states has Dr. Bess Catherine Stillman been licensed in?
Dmand AI has state licenses on file for Dr. Stillman in Arizona and New York.
Which hospitals is Dr. Bess Catherine Stillman affiliated with?
Dr. Stillman practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona. Dr. Stillman is also affiliated with Brookdale Hospital Medical Center.
What medical group is Dr. Bess Catherine Stillman part of?
Dr. Stillman is linked to Mayo Clinic Arizona. Dmand AI links Dr. Stillman to 9 more medical groups.
Does Dr. Bess Catherine Stillman accept Medicare?
Yes. CMS data shows Dr. Stillman billed Medicare for 281 services in 2024.
What is Dr. Bess Catherine Stillman's MIPS score?
Dr. Stillman's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Bess Catherine Stillman see?
CMS counts 284 Medicare patients who saw Dr. Stillman in 2024, with an average age of 75.
What services does Dr. Bess Catherine Stillman bill to Medicare?
In 2024, Dr. Stillman's most billed Medicare services were emergency department visit (99285) and emergency department visit (99284).
Where did Dr. Bess Catherine Stillman go to medical school?
Dr. Stillman graduated from University of Arizona College of Medicine in 2011.
What drugs does Dr. Bess Catherine Stillman prescribe most?
In 2023 Medicare Part D data, Dr. Stillman's most prescribed drugs by claims were Cephalexin.
Has Dr. Bess Catherine Stillman received payments from drug or device companies?
CMS Open Payments shows $102 in general payments to Dr. Stillman from 1 company from 2021 to 2021. The largest total came from Abbvie Inc.
How long has Dr. Bess Catherine Stillman been practicing?
Dr. Stillman graduated from medical school in 2011, 15 years ago.
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