Mason Holbrook
- Medicare services, 2024
- 267
- Medicare patients, 2024
- 172
- Part D claims, 2024
- 206
- MIPS score, 2024
- 79
- Hospital affiliations
- 1
- Practice address
- 1850 Bluegrass Ave, Louisville, KY 40215
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD
Acute Care Hospital outpatient department · Louisville, Kentucky
Find Mason Holbrook'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.
Mason Holbrook is a general surgeon in Louisville, Kentucky
Mason Holbrook practices at Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD in Louisville, Kentucky.
Mason Holbrook's NPI, 1871029397, was assigned on May 3, 2017. Mason Holbrook graduated from University of Louisville School of Medicine in 2018. Mason Holbrook holds Kentucky license TP483.
- NPI
- 1871029397NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587992862
- NPI enumeration date
- May 3, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mason Holbrook practices at Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD in Louisville, Kentucky
Mason Holbrook's primary practice is Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD, at 1850 Bluegrass Ave, Louisville, KY 40215.
- Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD1850 Bluegrass Ave, Louisville, KY 40215
Source: Dmand AI Affiliation Data
Mason Holbrook is affiliated with 3 sites of care and 1 medical group
Mason Holbrook's primary practice is Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD in Louisville, Kentucky. Mason Holbrook is also affiliated with UofL Health - Jewish Hospital. The medical group on file is UofL Physicians, Radiology. Dmand AI also links Mason Holbrook to 1 more group practice or clinic, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mason Holbrook's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mason Holbrook practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Mason Holbrook is one of 383 general surgeons in Kentucky
Surgery is Mason Holbrook's primary specialty in the NPI Registry, under taxonomy code 208600000X. Mason Holbrook is licensed in Kentucky.
Specialties and state licenses
- Surgery, KentuckyPrimary
General surgeons near Mason Holbrook
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
Mason Holbrook billed Medicare for 267 services in 2024
CMS data shows 267 Medicare services from Mason Holbrook across 10 procedure codes in 2024, for 172 Medicare patients. Medicare paid $26,021 for them.
Mason Holbrook's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 182024: 175872%
- Surgery
- 2023: 02024: 79
- Other services
- 2023: 02024: 13
Where Mason Holbrook's Medicare services took place, 2024
- In an office5420%
- In a facility21380%
Mason Holbrook compared with the Kentucky median for general surgeons, 2024
- Mason Holbrook
- Kentucky median
- Medicare services
- 267vs 20232% above
- Medicare patients
- 172vs 14717% above
- Part D claims
- 141vs 8370% above
Medians across 373 general surgeons in Kentucky with Dmand AI profiles that report each measure.
Mason Holbrook'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 Mason Holbrook and other general surgeons in Kentucky.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mason Holbrook treated 172 Medicare patients in 2024, average age 71
CMS counts 172 Medicare patients who saw Mason Holbrook in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mason Holbrook's median patient age at 63, with 48% women.
Mason Holbrook's Medicare patients by age, 2024
Mason Holbrook's Medicare patients by sex, 2024
- Women8248%
- Men9052%
Chronic conditions among Mason Holbrook's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes37%
- Ischemic heart disease37%
- Anxiety33%
- Chronic kidney disease28%
- Atrial fibrillation27%
Share of Medicare patients with each condition. A patient can have several.
Mason Holbrook's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mason Holbrook wrote 206 Medicare Part D claims in 2024
In 2024, Mason Holbrook wrote 206 Medicare Part D claims for 95 patients. 83% of them were for generic drugs. CMS names the drug for 141 of them, across 5 drugs with 11 or more claims each, at $2,050 in total drug cost. In 2023, CMS named 27 claims across 1 drug.
Mason Holbrook's Part D claims by kind of drug, 2024
- Generic171 claims83%
- Brand-name35 claims17%
Mason Holbrook'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 Mason Holbrook's Part D claims, 2024
- Opioids25%51 of 206 claims
- Antibiotics10%21 of 206 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: 272024: 141422%
Drugs named by CMS: 5 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
Mason Holbrook scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Mason Holbrook for performance year 2024, reported as part of a group. Mason Holbrook accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 31 procedures of colonoscopy by Mason Holbrook, more than 54% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Mason Holbrook's MIPS scores, performance year 2024
- 79of 100Final score
- 56.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Mason Holbrook ranks in Medicare procedure volume
- Colonoscopy
- 54th percentile31 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 46th percentile15 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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)
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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Mason Holbrook received $1,719 in industry payments from 2021 to 2025
CMS Open Payments shows 31 general payments to Mason Holbrook from 19 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Kerecis Limited paid the most, $473.
General payments to Mason Holbrook by program year, 2021 to 2025
Companies that paid Mason Holbrook the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mason Holbrook graduated from University of Louisville School of Medicine
Mason Holbrook graduated from University of Louisville School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mason Holbrook'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 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 Mason Holbrook
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mason Holbrook's NPI number?
Mason Holbrook's NPI number is 1871029397. It was assigned on May 3, 2017, and it is active in the NPI Registry.
What does Mason Holbrook specialize in?
Mason Holbrook is a general surgeon in Louisville, Kentucky. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Mason Holbrook practice?
Mason Holbrook practices at 1850 Bluegrass Ave, Louisville, KY 40215. Mason Holbrook's primary practice is Mary & Elizabeth Hospital / Pulmonary Rehab - HOPD in Louisville, Kentucky. Dmand AI also links Mason Holbrook to 1 group practice or clinic.
What is Mason Holbrook's medical license number?
Mason Holbrook holds Kentucky license TP483.
Which hospitals is Mason Holbrook affiliated with?
Mason Holbrook is affiliated with UofL Health - Jewish Hospital.
What medical group is Mason Holbrook part of?
Mason Holbrook is linked to UofL Physicians, Radiology.
Does Mason Holbrook accept Medicare?
Yes. CMS data shows Mason Holbrook billed Medicare for 267 services in 2024, and Mason Holbrook accepts Medicare assignment.
What is Mason Holbrook's MIPS score?
Mason Holbrook's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
How many Medicare patients does Mason Holbrook see?
CMS counts 172 Medicare patients who saw Mason Holbrook in 2024, with an average age of 71.
What services does Mason Holbrook bill to Medicare?
In 2024, Mason Holbrook's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99223) and surgery: digestive system (45380).
Show 4 more questionsShow fewer questions
Where did Mason Holbrook go to medical school?
Mason Holbrook graduated from University of Louisville School of Medicine in 2018.
What drugs does Mason Holbrook prescribe most?
In 2024 Medicare Part D data, Mason Holbrook's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Peg 3350-Electrolyte and Sucralfate.
Has Mason Holbrook received payments from drug or device companies?
CMS Open Payments shows $1,719 in general payments to Mason Holbrook from 19 companies from 2021 to 2025. The largest total came from Kerecis Limited.
How long has Mason Holbrook been practicing?
Mason Holbrook graduated from medical school in 2018, 8 years ago.
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