Dr. Keegan Q. Barry-Holson, MD
- Medicare services, 2024
- 136
- Medicare patients, 2024
- 26
- Publications
- 6
- MIPS score, 2024
- 89
- Hospital affiliations
- 3
- Practice address
- 300 Pasteur Drive, Stanford, CA 94305
- Practice phone
- Call (650) 723-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Barry-Holson'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. Keegan Q. Barry-Holson is a pathologist in Stanford, California
Dr. Barry-Holson practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.
Dr. Barry-Holson's NPI, 1083024111, was assigned on April 29, 2014. Dr. Barry-Holson graduated from Keck School of Medicine of USC in 2014. Dr. Barry-Holson holds California license A138063.
- NPI
- 1083024111NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456681451
- NPI enumeration date
- April 29, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 723-4000
- 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. Keegan Q. Barry-Holson practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California
Dr. Barry-Holson's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.
- Stanford Hospital at 300 Pasteur Drive300 Pasteur Drive, Stanford, CA 94305 · Santa Clara CountyPhone(650) 723-4000
Source: Dmand AI Affiliation Data
Dr. Keegan Q. Barry-Holson is affiliated with 3 sites of care and 2 medical groups
Dr. Barry-Holson's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dr. Barry-Holson is also affiliated with Stanford Health Care Tri-Valley. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Barry-Holson to 1 more hospital and 1 medical group, each named with a free account. Dr. Barry-Holson's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Keegan Q. Barry-Holson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barry-Holson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stanford Hospital at 300 Pasteur Drive | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Keegan Q. Barry-Holson is one of 1,354 pathologists in California
Anatomic pathology and clinical pathology is Dr. Barry-Holson's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Barry-Holson is board certified in pathology - anatomic/pathology - clinical by the American Board of Pathology. Dr. Barry-Holson is licensed in California.
Specialties and state licenses
- Anatomic pathology and clinical pathology, CaliforniaPrimary
Pathologists near Dr. Barry-Holson
Counts of pathologists 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. Keegan Q. Barry-Holson billed Medicare for 136 services in 2024
CMS data shows 136 Medicare services from Dr. Barry-Holson across 3 procedure codes in 2024, for 26 Medicare patients. Medicare paid $3,839 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Barry-Holson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2132024: 13636%
Dr. Barry-Holson compared with the California median for pathologists, 2024
- Dr. Barry-Holson
- California median
- Medicare services
- 136vs 1,15388% below
- Medicare patients
- 26vs 44794% below
Medians across 1,094 pathologists in California with Dmand AI profiles that report each measure.
Dr. Barry-Holson'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. Barry-Holson and other pathologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Keegan Q. Barry-Holson treated 26 Medicare patients in 2024, average age 68
CMS counts 26 Medicare patients who saw Dr. Barry-Holson in 2024. The largest group is 65 to 74, with 13 patients. 73% of them have high cholesterol, and 65% have high blood pressure. 50% are also on Medicaid. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Barry-Holson's median patient age at 42, with 98% women.
Dr. Barry-Holson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Barry-Holson's Medicare patients, 2024
- High cholesterol73%
- High blood pressure65%
- Arthritis50%
- Anxiety42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barry-Holson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women98%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Keegan Q. Barry-Holson scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Barry-Holson for performance year 2024, reported as part of a group. Dr. Barry-Holson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Barry-Holson's MIPS scores, performance year 2024
- 89of 100Final score
- 87.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 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. Keegan Q. Barry-Holson has 6 publications on record
Dmand AI links 6 papers to Dr. Barry-Holson, published from 2010 to 2024. 2017 was the busiest year, with 2. The most frequent topics are Breast Neoplasms and Neoplastic Stem Cells. Dr. Barry-Holson has published most often in Mod Pathol. Dr. Barry-Holson's most frequent co-authors are Kimberly H. Allison, MD, Scott A. Armstrong, MD, PhD and David B. Bingham, MD.
Dr. Barry-Holson's papers by year, 2010 to 2024
Topics Dr. Barry-Holson writes about most
- Breast Neoplasms
- Neoplastic Stem Cells
Dr. Barry-Holson's most frequent co-authors
- Kimberly H. Allison, MD2 shared papers
- Scott A. Armstrong, MD, PhD1 shared paper
- David B. Bingham, MD1 shared paper
Recent publications by Dr. Barry-Holson
Cell Stem Cell
Histopathology
See who Dr. Barry-Holson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Barry-Holson works with, so you can find a warm path to the right pathologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Keegan Q. Barry-Holson received $14 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Barry-Holson from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $14.
Companies that paid Dr. Barry-Holson the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Keegan Q. Barry-Holson graduated from Keck School of Medicine of USC
Dr. Barry-Holson graduated from Keck School of Medicine of USC in 2014.
- Medical school
- Board certified in pathology - anatomic/pathology - clinical
Source: Dmand AI Professional Profile Data
Dr. Keegan Q. Barry-Holson accepts plans from 1 insurance carrier
Dr. Barry-Holson is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Keegan Q. Barry-Holson'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Keegan Q. Barry-Holson
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. Keegan Q. Barry-Holson's NPI number?
Dr. Keegan Q. Barry-Holson's NPI number is 1083024111. It was assigned on April 29, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Keegan Q. Barry-Holson?
Dr. Keegan Q. Barry-Holson is a pathologist in Stanford, California. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Keegan Q. Barry-Holson practice?
Dr. Barry-Holson practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Barry-Holson's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Barry-Holson to 1 hospital and 1 medical group.
What is Dr. Keegan Q. Barry-Holson's office phone number?
The practice phone on file for Dr. Barry-Holson is (650) 723-4000.
What is Dr. Keegan Q. Barry-Holson's medical license number?
Dr. Barry-Holson holds California license A138063.
Which hospitals is Dr. Keegan Q. Barry-Holson affiliated with?
Dr. Barry-Holson practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dr. Barry-Holson is also affiliated with Stanford Health Care Tri-Valley. Dmand AI links Dr. Barry-Holson to 1 more hospital.
What medical group is Dr. Keegan Q. Barry-Holson part of?
Dr. Barry-Holson is linked to Stanford Health Care. Dmand AI links Dr. Barry-Holson to 1 more medical group.
Does Dr. Keegan Q. Barry-Holson accept Medicare?
Yes. CMS data shows Dr. Barry-Holson billed Medicare for 136 services in 2024, and Dr. Barry-Holson accepts Medicare assignment.
What is Dr. Keegan Q. Barry-Holson's MIPS score?
Dr. Barry-Holson's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. Keegan Q. Barry-Holson see?
CMS counts 26 Medicare patients who saw Dr. Barry-Holson in 2024, with an average age of 68.
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Is Dr. Keegan Q. Barry-Holson board certified?
Yes. Dr. Barry-Holson is board certified in pathology - anatomic/pathology - clinical by the American Board of Pathology.
What services does Dr. Keegan Q. Barry-Holson bill to Medicare?
In 2024, Dr. Barry-Holson's most billed Medicare services were lab and pathology test (88341), lab and pathology test (88305) and lab and pathology test (88342).
Where did Dr. Keegan Q. Barry-Holson go to medical school?
Dr. Barry-Holson graduated from Keck School of Medicine of USC in 2014.
Has Dr. Keegan Q. Barry-Holson received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Barry-Holson from 1 company from 2019 to 2019. The largest total came from ViiV Healthcare Company.
How long has Dr. Keegan Q. Barry-Holson been practicing?
Dr. Barry-Holson graduated from medical school in 2014, 12 years ago.
Does Dr. Keegan Q. Barry-Holson do research?
Dmand AI links 6 publications to Dr. Barry-Holson, published from 2010 to 2024.
Who does Dr. Keegan Q. Barry-Holson publish with?
Dr. Barry-Holson's most frequent co-authors are Kimberly H. Allison, MD (2 shared papers), Scott A. Armstrong, MD, PhD (1 shared paper) and David B. Bingham, MD (1 shared paper).
What insurance does Dr. Keegan Q. Barry-Holson accept?
Dr. Barry-Holson is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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