Dr. John Farrell Holbrook, MD

  • Fayetteville, GA
  • Diagnostic radiologist
NPI1932261161PAC ID3173701927
Medicare services, 2024
2,411
Medicare patients, 2024
2,289
Publications
8
MIPS score, 2024
97
Hospital affiliations
6
Practice address
1255 Highway 54 West, Fayetteville, GA 30214
Practice phone
Call (770) 719-7000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Piedmont Fayette Hospital

Hospital · Fayetteville, Georgia

See all 11 affiliations

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Dr. John Farrell Holbrook is a diagnostic radiologist in Fayetteville, Georgia

Dr. Holbrook practices at Piedmont Fayette Hospital in Fayetteville, Georgia, part of Piedmont Healthcare.

Dr. Holbrook's NPI, 1932261161, was assigned on December 14, 2006. Dr. Holbrook graduated from University of Tennessee, Hsc, College of Medicine in 2005. Dr. Holbrook holds Georgia license 65600.

NPI and contact details
Medicare PAC ID
3173701927
NPI enumeration date
December 14, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(770) 719-7000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
47
Medical school graduation
2005

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. John Farrell Holbrook practices at Piedmont Fayette Hospital in Fayetteville, Georgia

Dr. Holbrook's primary practice is Piedmont Fayette Hospital, at 1255 Highway 54 West, Fayetteville, GA 30214 in Fayette County. The practice phone is (770) 719-7000.

Source: Dmand AI Affiliation Data

Dr. John Farrell Holbrook is affiliated with 6 sites of care and 5 medical groups

Dr. Holbrook's primary practice is Piedmont Fayette Hospital in Fayetteville, Georgia, part of Piedmont Healthcare. Dr. Holbrook is also affiliated with Northside Hospital Atlanta. The medical group on file is Piedmont South Imaging. Dmand AI also links Dr. Holbrook to 4 more hospitals and 4 medical groups, each named with a free account.

See all 11 affiliations for Dr. Holbrook

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. John Farrell Holbrook's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holbrook practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Piedmont Fayette HospitalAvailable with a free account
+5 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. John Farrell Holbrook is one of 920 diagnostic radiologists in Georgia

Diagnostic radiology is Dr. Holbrook's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Holbrook is licensed in Georgia.

Specialties and state licenses

  • Diagnostic radiology, GeorgiaPrimaryLicense 65600 · taxonomy 2085R0202X

Diagnostic radiologists near Dr. Holbrook

Counts of diagnostic radiologists 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. John Farrell Holbrook billed Medicare for 2,411 services in 2024

CMS data shows 2,411 Medicare services from Dr. Holbrook across 30 procedure codes in 2024, for 2,289 Medicare patients. Medicare paid $107,526 for them.

Medicare services, 20242,411
Medicare patients2,289
Paid by Medicare$107,526
Procedure codes30

Dr. Holbrook's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 2,3992024: 2,4111%
Tests and treatments
2023: 122024: 0100%

Where Dr. Holbrook's Medicare services took place, 2024

  • In an office74431%
  • In a facility1,66769%

Dr. Holbrook compared with the Georgia median for diagnostic radiologists, 2024

  • Dr. Holbrook
  • Georgia median
Medicare services
2,411vs 2,17411% above
Medicare patients
2,289vs 1,67437% above

Medians across 895 diagnostic radiologists in Georgia with Dmand AI profiles that report each measure.

Dr. 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.

See all procedures by Dr. Holbrook

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. John Farrell Holbrook treated 2,289 Medicare patients in 2024, average age 75

CMS counts 2,289 Medicare patients who saw Dr. Holbrook in 2024. The largest group is 75 to 84, with 905 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.72, 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. Holbrook's median patient age at 72, with 52% women.

Medicare patients, 20242,289
Average age75
Average risk score1.72
Also on Medicaid10%

Dr. Holbrook's Medicare patients by age, 2024

Dr. Holbrook's Medicare patients by sex, 2024

  • Women1,29657%
  • Men99343%

Chronic conditions among Dr. Holbrook's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis65%
  4. Anxiety37%
  5. Ischemic heart disease37%
  6. Chronic kidney disease35%
  7. Mood disorders35%
  8. Depression32%

Share of Medicare patients with each condition. A patient can have several.

Dr. 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 72

Patient panel by sex, all payers

  • Women52%
  • Men46%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. John Farrell Holbrook scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Holbrook for performance year 2024, reported as part of a group. Dr. Holbrook accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Holbrook's MIPS scores, performance year 2024

  • 97of 100Final score
  • 96.2of 100Quality
  • 40of 100Improvement Activities

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

For MedTech and pharma teams

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Dr. John Farrell Holbrook has 8 publications on record

Dmand AI links 8 papers to Dr. Holbrook, published from 2011 to 2017. 2017 was the busiest year, with 4. The most frequent topics are Magnetic Resonance Imaging, Pseudotumor Cerebri and Intracranial Hypotension. Dr. Holbrook's most frequent co-authors are Beau Benjamin Bruce, MD, William Jeremy Beckworth, MD and Nancy Jean Newman, MD.

Papers8
Years published2011 to 2017

Dr. Holbrook's papers by year, 2011 to 2017

Topics Dr. Holbrook writes about most

  • Magnetic Resonance Imaging
  • Pseudotumor Cerebri
  • Intracranial Hypotension
  • Intracranial Pressure
  • Optic Nerve
  • Spinal Puncture

Dr. Holbrook's most frequent co-authors

Recent publications by Dr. Holbrook

See all 8 publications and co-authors

See who Dr. Holbrook researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Holbrook works with, so you can find a warm path to the right diagnostic radiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. John Farrell Holbrook received $314 in industry payments from 2016 to 2024

CMS Open Payments shows 5 general payments to Dr. Holbrook from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Medtronic USA, Inc. paid the most, $226.

General payments to Dr. Holbrook by program year, 2016 to 2024

Companies that paid Dr. Holbrook the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Holbrook

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. John Farrell Holbrook graduated from University of Tennessee, Hsc, College of Medicine

Dr. Holbrook graduated from University of Tennessee, Hsc, College of Medicine in 2005.

  1. Medical schoolUniversity of Tennessee, Hsc, College of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. John Farrell Holbrook's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. John Farrell 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 Dr. John Farrell Holbrook's NPI number?

Dr. John Farrell Holbrook's NPI number is 1932261161. It was assigned on December 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. John Farrell Holbrook?

Dr. John Farrell Holbrook is a diagnostic radiologist in Fayetteville, Georgia. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).

Where does Dr. John Farrell Holbrook practice?

Dr. Holbrook practices at 1255 Highway 54 West, Fayetteville, GA 30214. Dr. Holbrook's primary practice is Piedmont Fayette Hospital in Fayetteville, Georgia, part of Piedmont Healthcare. Dmand AI also links Dr. Holbrook to 4 hospitals and 4 medical groups.

What is Dr. John Farrell Holbrook's office phone number?

The practice phone on file for Dr. Holbrook is (770) 719-7000.

What is Dr. John Farrell Holbrook's medical license number?

Dr. Holbrook holds Georgia license 65600.

Which hospitals is Dr. John Farrell Holbrook affiliated with?

Dr. Holbrook practices at Piedmont Fayette Hospital in Fayetteville, Georgia. Dr. Holbrook is also affiliated with Northside Hospital Atlanta. Dmand AI links Dr. Holbrook to 4 more hospitals.

What medical group is Dr. John Farrell Holbrook part of?

Dr. Holbrook is linked to Piedmont South Imaging. Dmand AI links Dr. Holbrook to 4 more medical groups.

Does Dr. John Farrell Holbrook accept Medicare?

Yes. CMS data shows Dr. Holbrook billed Medicare for 2,411 services in 2024, and Dr. Holbrook accepts Medicare assignment.

What is Dr. John Farrell Holbrook's MIPS score?

Dr. Holbrook's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.

How many Medicare patients does Dr. John Farrell Holbrook see?

CMS counts 2,289 Medicare patients who saw Dr. Holbrook in 2024, with an average age of 75.

Show 6 more questionsShow fewer questions

What services does Dr. John Farrell Holbrook bill to Medicare?

In 2024, Dr. Holbrook's most billed Medicare services were diagnostic imaging (70450), diagnostic imaging (70553) and diagnostic imaging (72148).

Where did Dr. John Farrell Holbrook go to medical school?

Dr. Holbrook graduated from University of Tennessee, Hsc, College of Medicine in 2005.

Has Dr. John Farrell Holbrook received payments from drug or device companies?

CMS Open Payments shows $314 in general payments to Dr. Holbrook from 4 companies from 2016 to 2024. The largest total came from Medtronic USA, Inc.

How long has Dr. John Farrell Holbrook been practicing?

Dr. Holbrook graduated from medical school in 2005, 21 years ago.

Does Dr. John Farrell Holbrook do research?

Dmand AI links 8 publications to Dr. Holbrook, published from 2011 to 2017.

Who does Dr. John Farrell Holbrook publish with?

Dr. Holbrook's most frequent co-authors are Beau Benjamin Bruce, MD (3 shared papers), William Jeremy Beckworth, MD (2 shared papers) and Nancy Jean Newman, MD (2 shared papers).

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