Justin Patrick Holiwell
- Medicare patients, 2024
- 100
- Part D claims, 2024
- 37
- MIPS score, 2024
- 95
- Hospital affiliations
- 1
- Industry payments
- $442
- Practice address
- 317 West Pueblo, Santa Barbara, CA 93105
- Practice phone
- Call (805) 681-7500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sansum Clinic
Surgery Center - Medicare-Certified · Santa Barbara, California
Find Justin Holiwell'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.
Justin Patrick Holiwell is a physician assistant in Santa Barbara, California
Justin Holiwell practices at Sansum Clinic in Santa Barbara, California.
Justin Holiwell's NPI, 1912540592, was assigned on October 25, 2019. Justin Holiwell holds California license PA58237.
- NPI
- 1912540592NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618397951
- NPI enumeration date
- October 25, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 681-7500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Justin Patrick Holiwell practices at Sansum Clinic in Santa Barbara, California
Justin Holiwell's primary practice is Sansum Clinic, at 317 West Pueblo, Santa Barbara, CA 93105. The practice phone is (805) 681-7500.
- Sansum Clinic317 West Pueblo, Santa Barbara, CA 93105Phone(805) 681-7500
Source: Dmand AI Affiliation Data
Justin Patrick Holiwell is affiliated with 2 sites of care and 3 medical groups
Justin Holiwell's primary practice is Sansum Clinic in Santa Barbara, California. Justin Holiwell is also affiliated with Santa Barbara Cottage Hospital. The medical group on file is Sansum Clinic. Dmand AI also links Justin Holiwell to 2 more medical groups, each named with a free account. Justin Holiwell's employer is on file too: a surgery center (asc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Justin Patrick Holiwell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Justin Holiwell practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sansum Clinic | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Justin Patrick Holiwell is one of 11,482 physician assistants in California
Physician assistant is Justin Holiwell's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Justin Holiwell is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Justin Holiwell
Counts of physician assistants 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
Justin Patrick Holiwell treated 100 Medicare patients in 2024, average age 76
CMS counts 100 Medicare patients who saw Justin Holiwell in 2024. The largest group is 75 to 84, with 36 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.78, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Justin Holiwell's median patient age at 79, with 41% women.
Justin Holiwell's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Justin Holiwell's Medicare patients by sex, 2024
- Women4848%
- Men5252%
Chronic conditions among Justin Holiwell's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Stroke or TIA40%
- Ischemic heart disease35%
- Atrial fibrillation34%
- Diabetes34%
- Chronic kidney disease29%
Share of Medicare patients with each condition. A patient can have several.
Justin Holiwell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women41%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Justin Patrick Holiwell wrote 37 Medicare Part D claims in 2024
In 2024, Justin Holiwell wrote 37 Medicare Part D claims for 26 patients. 97% of them were for generic drugs.
Justin Holiwell's Part D claims by kind of drug, 2024
- Generic36 claims97%
- Brand-name and other1 claims3%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Justin Patrick Holiwell scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Justin Holiwell for performance year 2024, reported as part of a group. Justin Holiwell accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Justin Holiwell as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Justin Holiwell's MIPS scores, performance year 2024
- 95of 100Final score
- 98.4of 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.
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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Justin Patrick Holiwell received $442 in industry payments in 2025
CMS Open Payments shows 7 general payments to Justin Holiwell from 7 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Biosense Webster, Inc. paid the most, $144.
Companies that paid Justin Holiwell the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Justin Patrick Holiwell'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 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 (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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Justin Patrick Holiwell
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Justin Patrick Holiwell's NPI number?
Justin Patrick Holiwell's NPI number is 1912540592. It was assigned on October 25, 2019, and it is active in the NPI Registry.
What does Justin Patrick Holiwell specialize in?
Justin Patrick Holiwell is a physician assistant in Santa Barbara, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Justin Patrick Holiwell practice?
Justin Holiwell practices at 317 West Pueblo, Santa Barbara, CA 93105. Justin Holiwell's primary practice is Sansum Clinic in Santa Barbara, California. Dmand AI also links Justin Holiwell to 2 medical groups.
What is Justin Patrick Holiwell's office phone number?
The practice phone on file for Justin Holiwell is (805) 681-7500.
What is Justin Patrick Holiwell's medical license number?
Justin Holiwell holds California license PA58237.
Which hospitals is Justin Patrick Holiwell affiliated with?
Justin Holiwell is affiliated with Santa Barbara Cottage Hospital.
What medical group is Justin Patrick Holiwell part of?
Justin Holiwell is linked to Sansum Clinic. Dmand AI links Justin Holiwell to 2 more medical groups.
Does Justin Patrick Holiwell accept Medicare?
Yes. CMS lists Justin Holiwell as accepting Medicare assignment.
Does Justin Patrick Holiwell offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Justin Holiwell as offering telehealth services.
What is Justin Patrick Holiwell's MIPS score?
Justin Holiwell's MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.
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How many Medicare patients does Justin Patrick Holiwell see?
CMS counts 100 Medicare patients who saw Justin Holiwell in 2024, with an average age of 76.
Has Justin Patrick Holiwell received payments from drug or device companies?
CMS Open Payments shows $442 in general payments to Justin Holiwell from 7 companies from 2025 to 2025. The largest total came from Biosense Webster, Inc.
How long has Justin Patrick Holiwell been practicing?
Justin Holiwell graduated from medical school in 2020, 6 years ago.
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