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Dr. John L. Holbrook, MD
NPI1255301644PAC ID7911964614
- Medicare services, 2024
- 4,611
- Medicare patients, 2024
- 185
- Part D claims, 2024
- 120
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 601 Med Tech Pkwy, Johnson City, TN 37604
- Practice phone
- Call (423) 610-1020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mountain Empire Surgery Center
Surgery Center - Medicare-Certified · Johnson City, Tennessee
Find Dr. Holbrook's professional email, personal email and mobile number
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Dr. John L. Holbrook is an orthopedic surgeon in Johnson City, Tennessee
Dr. Holbrook practices at Mountain Empire Surgery Center in Johnson City, Tennessee.
Dr. Holbrook's NPI, 1255301644, was assigned on January 26, 2006. Dr. Holbrook graduated from Vanderbilt University School of Medicine in 1980. Dr. Holbrook holds Tennessee license 18713.
NPI and contact details
- NPI
- 1255301644NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911964614
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 610-1020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John L. Holbrook practices at Mountain Empire Surgery Center in Johnson City, Tennessee
Dr. Holbrook's primary practice is Mountain Empire Surgery Center, at 601 Med Tech Pkwy, Johnson City, TN 37604. The practice phone is (423) 610-1020.
- Mountain Empire Surgery Center601 Med Tech Pkwy, Johnson City, TN 37604Phone(423) 610-1020
Source: Dmand AI Affiliation Data
Dr. John L. Holbrook is affiliated with 3 sites of care and 2 medical groups
Dr. Holbrook's primary practice is Mountain Empire Surgery Center in Johnson City, Tennessee. Dr. Holbrook is also affiliated with Johnson City Medical Center. The medical group on file is Campbell Clinic. Dmand AI also links Dr. Holbrook to 1 more group practice or clinic and 1 medical group, each named with a free account.
Mountain Empire Surgery CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John L. Holbrook's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holbrook practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mountain Empire Surgery Center | 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. John L. Holbrook is one of 380 orthopedic surgeons in Tennessee
Orthopaedic surgery is Dr. Holbrook's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Holbrook is licensed in Tennessee.
Specialties and state licenses
- Orthopaedic surgery, TennesseePrimary
Orthopedic surgeons near Dr. Holbrook
Counts of orthopedic 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. John L. Holbrook billed Medicare for 4,611 services in 2024
CMS data shows 4,611 Medicare services from Dr. Holbrook across 11 procedure codes in 2024, for 185 Medicare patients. Medicare paid $28,472 for them.
Medicare services, 20244,611
Medicare patients185
Paid by Medicare$28,472
Procedure codes11
Dr. Holbrook's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 1052024: 4,2183917%
- Office and hospital visits
- 2023: 2552024: 19524%
- Imaging
- 2023: 1252024: 10417%
- Surgery
- 2023: 1422024: 9434%
- Tests and treatments
- 2023: 132024: 0100%
Where Dr. Holbrook's Medicare services took place, 2024
- In an office4,57699%
- In a facility351%
Dr. Holbrook compared with the Tennessee median for orthopedic surgeons, 2024
- Dr. Holbrook
- Tennessee median
- Medicare services
- 4,611vs 1,5952.9 times
- Medicare patients
- 185vs 29036% below
- Part D claims
- 89vs 23262% below
Medians across 392 orthopedic surgeons in Tennessee 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Holbrook and other orthopedic surgeons in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John L. Holbrook treated 185 Medicare patients in 2024, average age 74
CMS counts 185 Medicare patients who saw Dr. Holbrook in 2024. The largest group is 65 to 74, with 93 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Holbrook's median patient age at 70, with 60% women.
Medicare patients, 2024185
Average age74
Average risk score0.96
Dr. Holbrook's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Holbrook's Medicare patients by sex, 2024
- Women10657%
- Men7943%
Chronic conditions among Dr. Holbrook's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Ischemic heart disease30%
- Chronic kidney disease29%
- Mood disorders26%
- Depression25%
- Diabetes25%
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 70
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John L. Holbrook wrote 120 Medicare Part D claims in 2024
In 2024, Dr. Holbrook wrote 120 Medicare Part D claims for 70 patients. 99% of them were for generic drugs. CMS names the drug for 89 of them, across 3 drugs with 11 or more claims each, at $465 in total drug cost. In 2023, CMS named 103 claims across 3 drugs.
Part D claims, 2024120
Drugs named by CMS3
Total drug cost$465
Part D patients70
Dr. Holbrook's Part D claims by kind of drug, 2024
- Generic119 claims99%
- Brand-name and other1 claims1%
Dr. 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 Dr. Holbrook's Part D claims, 2024
- Opioids41%49 of 120 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: 1032024: 8914%
Drugs named by CMS: 3 in 2024, 3 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
Dr. John L. Holbrook ranks in the 72nd percentile for upper limb (arm) arthroscopy (minimally invasive joint repair) in Medicare
Dr. Holbrook accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 28 procedures of upper limb (arm) arthroscopy (minimally invasive joint repair) by Dr. Holbrook, more than 72% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Holbrook ranks in Medicare procedure volume
- Upper limb (arm) arthroscopy (minimally invasive joint repair)
- 72nd percentile28 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John L. Holbrook has 1 publication on record
Dmand AI links 1 paper to Dr. Holbrook in 2019.
Papers1
Recent publications by Dr. Holbrook
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 orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John L. Holbrook received $355 in industry payments from 2016 to 2025
CMS Open Payments shows 25 general payments to Dr. Holbrook from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Horizon Pharma plc paid the most, $100.
General payments to Dr. Holbrook by program year, 2016 to 2025
Companies that paid Dr. Holbrook the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John L. Holbrook graduated from Vanderbilt University School of Medicine
Dr. Holbrook graduated from Vanderbilt University School of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John L. 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 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) |
| 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)Doctors and Clinicians Utilization Data (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 |
| 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. John L. 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 L. Holbrook's NPI number?
Dr. John L. Holbrook's NPI number is 1255301644. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John L. Holbrook?
Dr. John L. Holbrook is an orthopedic surgeon in Johnson City, Tennessee. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John L. Holbrook practice?
Dr. Holbrook practices at 601 Med Tech Pkwy, Johnson City, TN 37604. Dr. Holbrook's primary practice is Mountain Empire Surgery Center in Johnson City, Tennessee. Dmand AI also links Dr. Holbrook to 1 group practice or clinic and 1 medical group.
What is Dr. John L. Holbrook's office phone number?
The practice phone on file for Dr. Holbrook is (423) 610-1020.
What is Dr. John L. Holbrook's medical license number?
Dr. Holbrook holds Tennessee license 18713.
Which hospitals is Dr. John L. Holbrook affiliated with?
Dr. Holbrook is affiliated with Johnson City Medical Center.
What medical group is Dr. John L. Holbrook part of?
Dr. Holbrook is linked to Campbell Clinic. Dmand AI links Dr. Holbrook to 1 more medical group.
Does Dr. John L. Holbrook accept Medicare?
Yes. CMS data shows Dr. Holbrook billed Medicare for 4,611 services in 2024, and Dr. Holbrook accepts Medicare assignment.
How many Medicare patients does Dr. John L. Holbrook see?
CMS counts 185 Medicare patients who saw Dr. Holbrook in 2024, with an average age of 74.
What services does Dr. John L. Holbrook bill to Medicare?
In 2024, Dr. Holbrook's most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99214) and office visit, established patient (99213).
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Where did Dr. John L. Holbrook go to medical school?
Dr. Holbrook graduated from Vanderbilt University School of Medicine in 1980.
What drugs does Dr. John L. Holbrook prescribe most?
In 2024 Medicare Part D data, Dr. Holbrook's most prescribed drugs by claims were Meloxicam, Hydrocodone-Acetaminophen and Celecoxib.
Has Dr. John L. Holbrook received payments from drug or device companies?
CMS Open Payments shows $355 in general payments to Dr. Holbrook from 17 companies from 2016 to 2025. The largest total came from Horizon Pharma plc.
How long has Dr. John L. Holbrook been practicing?
Dr. Holbrook graduated from medical school in 1980, 46 years ago.
Does Dr. John L. Holbrook do research?
Dmand AI links 1 publication to Dr. Holbrook.
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