Dr. Peter Francis Johnston, MD
- Medicare services, 2024
- 377
- Medicare patients, 2024
- 246
- MIPS score, 2024
- 86
- Hospital affiliations
- 1
- Industry payments
- $2,537
- 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. Johnston's professional email, personal email and mobile number
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Dr. Peter Francis Johnston is a general surgeon in Phoenix, Arizona
Dr. Johnston practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic.
Dr. Johnston's NPI, 1104192913, was assigned on March 26, 2012. Dr. Johnston holds Arizona license 63625.
- NPI
- 1104192913NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850720228
- NPI enumeration date
- March 26, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (480) 342-4201
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter Francis Johnston practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona
Dr. Johnston'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. Peter Francis Johnston is affiliated with 2 sites of care and 1 medical group
Dr. Johnston's primary practice is Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic. The medical group on file is Mayo Clinic Arizona. Dmand AI also links Dr. Johnston to 1 more ambulatory surgery center, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Peter Francis Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 2 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 |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter Francis Johnston is one of 617 general surgeons in Arizona
Surgery is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Johnston is board certified in surgical critical care by the American Board of Emergency Medicine. Dr. Johnston is licensed in Arizona.
Specialties and state licenses
- Surgery, ArizonaPrimary
General surgeons near Dr. Johnston
Counts of general surgeons 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. Peter Francis Johnston billed Medicare for 377 services in 2024
CMS data shows 377 Medicare services from Dr. Johnston across 7 procedure codes in 2024, for 246 Medicare patients. Medicare paid $39,852 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2772024: 36431%
- Surgery
- 2023: 132024: 13No change
Dr. Johnston compared with the Arizona median for general surgeons, 2024
- Dr. Johnston
- Arizona median
- Medicare services
- 377vs 1622.3 times
- Medicare patients
- 246vs 1162.1 times
Medians across 545 general surgeons in Arizona with Dmand AI profiles that report each measure.
Dr. Johnston'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Francis Johnston treated 246 Medicare patients in 2024, average age 74
CMS counts 246 Medicare patients who saw Dr. Johnston in 2024. The largest group is 65 to 74, with 117 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 2.17, 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. Johnston's median patient age at 68, with 41% women.
Dr. Johnston's Medicare patients by age, 2024
Dr. Johnston's Medicare patients by sex, 2024
- Women10241%
- Men14459%
Chronic conditions among Dr. Johnston's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Chronic kidney disease39%
- Ischemic heart disease37%
- Atrial fibrillation36%
- Mood disorders33%
- Anxiety31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter Francis Johnston 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. Johnston for performance year 2024, reported as part of a group. Dr. Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 14 procedures of hernia repair (minimally invasive) by Dr. Johnston, more than 80% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Johnston'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.
Where Dr. Johnston ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 80th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 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)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Peter Francis Johnston received $2,537 in industry payments from 2022 to 2025
CMS Open Payments shows 11 general payments to Dr. Johnston from 2 drug and device companies from 2022 to 2025. Education make up the largest share, 59% of the total. Intuitive Surgical, Inc. paid the most, $2,450.
General payments to Dr. Johnston by program year, 2022 to 2025
General payments to Dr. Johnston by kind, 2022 to 2025
- Education$1,50059%
- Food and beverage$60424%
- Travel and lodging$43317%
Companies that paid Dr. Johnston the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Peter Francis Johnston is board certified in surgical critical care
- Board certified in surgical critical care
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter Francis Johnston'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) |
| 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. Peter Francis Johnston
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. Peter Francis Johnston's NPI number?
Dr. Peter Francis Johnston's NPI number is 1104192913. It was assigned on March 26, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Francis Johnston?
Dr. Peter Francis Johnston is a general surgeon in Phoenix, Arizona. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Peter Francis Johnston practice?
Dr. Johnston practices at 5777 East Mayo Boulevard, Phoenix, AZ 85054. Dr. Johnston's primary practice is Mayo Clinic Hospital - Phoenix in Phoenix, Arizona, part of Mayo Clinic. Dmand AI also links Dr. Johnston to 1 ambulatory surgery center.
What is Dr. Peter Francis Johnston's office phone number?
The practice phone on file for Dr. Johnston is (480) 342-4201.
What is Dr. Peter Francis Johnston's medical license number?
Dr. Johnston holds Arizona license 63625.
Which hospitals is Dr. Peter Francis Johnston affiliated with?
Dr. Johnston practices at Mayo Clinic Hospital - Phoenix in Phoenix, Arizona.
What medical group is Dr. Peter Francis Johnston part of?
Dr. Johnston is linked to Mayo Clinic Arizona.
Does Dr. Peter Francis Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 377 services in 2024, and Dr. Johnston accepts Medicare assignment.
What is Dr. Peter Francis Johnston's MIPS score?
Dr. Johnston'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. Peter Francis Johnston see?
CMS counts 246 Medicare patients who saw Dr. Johnston in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
Is Dr. Peter Francis Johnston board certified?
Yes. Dr. Johnston is board certified in surgical critical care by the American Board of Emergency Medicine.
What services does Dr. Peter Francis Johnston bill to Medicare?
In 2024, Dr. Johnston's most billed Medicare services were hospital inpatient care (99232), critical care (99291) and hospital inpatient care (99231).
Has Dr. Peter Francis Johnston received payments from drug or device companies?
CMS Open Payments shows $2,537 in general payments to Dr. Johnston from 2 companies from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Peter Francis Johnston been practicing?
Dr. Johnston graduated from medical school in 2012, 14 years ago.
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