Dr. John H. Chi, MD
- Medicare services, 2024
- 1,385
- Medicare patients, 2024
- 493
- Part D claims, 2024
- 77
- Publications
- 173
- Clinical trials
- 2
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chi'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. John H. Chi is a neurosurgeon in Boston, Massachusetts
Dr. Chi practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Chi's NPI, 1649473000, was assigned on June 6, 2007. Dr. Chi graduated from Vagelos College of Physicians and Surgeons in 2001. Dr. Chi holds Massachusetts license 235576.
- NPI
- 1649473000NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810088663
- NPI enumeration date
- June 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John H. Chi practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Chi's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. John H. Chi is affiliated with 9 sites of care and 2 medical groups
Dr. Chi's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Chi is also affiliated with Massachusetts General Hospital. The medical group on file is Brigham and Women's Hospital. Dmand AI also links Dr. Chi to 4 more hospitals, 2 home health agencies, 1 hospital outpatient department and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John H. Chi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chi practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John H. Chi is one of 182 neurosurgeons in Massachusetts
Neurological surgery is Dr. Chi's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Chi is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Chi's licenses on file in 4 states: Massachusetts, California, Florida and Maryland.
Specialties and state licenses
- Neurological surgery, MassachusettsPrimary
- California license
- Florida license
- Maryland license
Clinical focus
Dmand AI lists back and neck pain treatment without fusion, lower back pain, neck pain and spine problems, spinal fusion and thoracic spine disorders among the conditions Dr. Chi treats.
Neurosurgeons near Dr. Chi
Counts of neurosurgeons 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 H. Chi billed Medicare for 1,385 services in 2024
CMS data shows 1,385 Medicare services from Dr. Chi across 20 procedure codes in 2024, for 493 Medicare patients. Medicare paid $450,766 for them.
Dr. Chi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 7852024: 8245%
- Office and hospital visits
- 2023: 5642024: 5611%
Where Dr. Chi's Medicare services took place, 2024
- In an office685%
- In a facility1,31795%
Dr. Chi compared with the Massachusetts median for neurosurgeons, 2024
- Dr. Chi
- Massachusetts median
- Medicare services
- 1,385vs 2026.9 times
- Medicare patients
- 493vs 1613.1 times
- Part D claims
- 58vs 222.6 times
Medians across 156 neurosurgeons in Massachusetts with Dmand AI profiles that report each measure.
Dr. Chi'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.
Need commercial claims for Dr. Chi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chi and other neurosurgeons in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John H. Chi treated 493 Medicare patients in 2024, average age 74
CMS counts 493 Medicare patients who saw Dr. Chi in 2024. The largest group is 65 to 74, with 222 patients. 75% of them have arthritis, and 75% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chi's median patient age at 71, with 53% women.
Dr. Chi's Medicare patients by age, 2024
Dr. Chi's Medicare patients by sex, 2024
- Women28157%
- Men21243%
Chronic conditions among Dr. Chi's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Anxiety39%
- Mood disorders38%
- Depression34%
- Ischemic heart disease30%
- Cancer26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John H. Chi wrote 77 Medicare Part D claims in 2024
In 2024, Dr. Chi wrote 77 Medicare Part D claims for 56 patients. 100% of them were for generic drugs. CMS names the drug for 58 of them, across 1 drug with 11 or more claims each, at $446 in total drug cost. In 2023, CMS named 42 claims across 1 drug.
Dr. Chi'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 422024: 5838%
Drugs named by CMS: 1 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
Dr. John H. Chi ranks in the 99th percentile for spinal fusion in Medicare
Dr. Chi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chi as offering telehealth. CMS counts 625 procedures of spinal fusion by Dr. Chi, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Chi ranks in Medicare procedure volume
- Spinal fusion
- 99th percentile625 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 99th percentile218 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 H. Chi has 173 publications on record
Dmand AI links 173 papers to Dr. Chi, published from 2005 to 2024. 2018 was the busiest year, with 9. The most frequent topics are Neurosurgical Procedures, Lumbar Vertebrae and Spinal Fusion. Dr. Chi has published most often in Neurosurgery. Dr. Chi's most frequent co-authors are Yi Lu, MD, PhD, Viren S. Vasudeva, MD and Sanjay Singh Dhall, MD.
Dr. Chi's papers by year, 2015 to 2024
Topics Dr. Chi writes about most
- Neurosurgical Procedures
- Lumbar Vertebrae
- Spinal Fusion
- Spinal Neoplasms
- Thoracic Vertebrae
- Spine
- Cervical Vertebrae
- Magnetic Resonance Imaging
Dr. Chi's most frequent co-authors
- Yi Lu, MD, PhD18 shared papers
- Viren S. Vasudeva, MD13 shared papers
- Sanjay Singh Dhall, MD11 shared papers
Recent publications by Dr. Chi
J Bone Joint Surg Am
See who Dr. Chi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chi works with, so you can find a warm path to the right neurosurgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John H. Chi has worked on 2 clinical trials
Dmand AI links Dr. Chi to 2 clinical trials. Conditions studied include Intervertebral Disc Degeneration and Spinal Diseases.
Conditions in Dr. Chi's trials
- Intervertebral Disc Degeneration
- Spinal Diseases
Investigators on the most trials with Dr. Chi
- Amjad Nasr Anaizi, MD1 shared trial
- Deepak Awasthi, MD1 shared trial
- Vassilios G. Dimopoulos, MD1 shared trial
Recent clinical trials with Dr. Chi
KUR-113 Bone Graft Versus Local Autograft for the Treatment of Single-level Transforaminal Lumbar Interbody Fusion (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John H. Chi received $356,883 in industry payments from 2016 to 2025
CMS Open Payments shows 552 general payments to Dr. Chi from 29 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 81% of the total. Stryker Corporation paid the most, $125,414. It also lists 1 research payment totaling $1,549 in 2020.
General payments to Dr. Chi by program year, 2016 to 2025
General payments to Dr. Chi by kind, 2016 to 2025
- Consulting fees$288,61381%
- Travel and lodging$34,40410%
- Food and beverage$29,6778%
- Education$2,5001%
- Speaker and faculty fees$1,6900%
Companies that paid Dr. Chi 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 H. Chi has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chi, most recently CMS Stage 1 2012 in 2012.
Awards and honors for Dr. Chi
- 2012
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. John H. Chi graduated from Vagelos College of Physicians and Surgeons
Dr. Chi graduated from Vagelos College of Physicians and Surgeons in 2001. Dr. Chi is a member of AANS and CNS.
- Medical school
- Board certified in neurological surgery
Source: Dmand AI Professional Profile Data
Dr. John H. Chi accepts plans from 18 insurance carriers
Dr. Chi is in network with 18 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Elevance
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Aetna
- Aspirus Health Plan
- +10 more carriersWith a free account
Plan types Dr. Chi accepts, by number of carriers
- PPO10
- HMO9
- Medicare9
- POS5
- EPO4
- Medicaid3
Source: Dmand AI Insurance Network Data
Sources for Dr. John H. Chi'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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John H. Chi
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 H. Chi's NPI number?
Dr. John H. Chi's NPI number is 1649473000. It was assigned on June 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John H. Chi?
Dr. John H. Chi is a neurosurgeon in Boston, Massachusetts. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. John H. Chi practice?
Dr. Chi practices at 75 Francis Street, Boston, MA 02115. Dr. Chi's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Chi to 4 hospitals, 2 home health agencies, 1 hospital outpatient department and 1 medical group.
What is Dr. John H. Chi's office phone number?
The practice phone on file for Dr. Chi is (617) 732-5500.
What is Dr. John H. Chi's medical license number?
Dr. Chi holds Massachusetts license 235576, one of the licenses on file in 4 states.
Which states has Dr. John H. Chi been licensed in?
Dmand AI has state licenses on file for Dr. Chi in Massachusetts (2008 to 2026), California (since 2003), Florida (2018 to 2020) and Maryland (2007 to 2008).
Which hospitals is Dr. John H. Chi affiliated with?
Dr. Chi practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Chi is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Chi to 4 more hospitals.
What medical group is Dr. John H. Chi part of?
Dr. Chi is linked to Brigham and Women's Hospital. Dmand AI links Dr. Chi to 1 more medical group.
Does Dr. John H. Chi accept Medicare?
Yes. CMS data shows Dr. Chi billed Medicare for 1,385 services in 2024, and Dr. Chi accepts Medicare assignment.
Does Dr. John H. Chi offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chi as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. John H. Chi see?
CMS counts 493 Medicare patients who saw Dr. Chi in 2024, with an average age of 74.
Is Dr. John H. Chi board certified?
Yes. Dr. Chi is board certified in neurological surgery by the American Board of Neurological Surgery.
What services does Dr. John H. Chi bill to Medicare?
In 2024, Dr. Chi's most billed Medicare services were surgery: bones and joints (22614), office visit, established patient (99213) and office visit, new patient (99203).
Where did Dr. John H. Chi go to medical school?
Dr. Chi graduated from Vagelos College of Physicians and Surgeons in 2001.
What drugs does Dr. John H. Chi prescribe most?
In 2024 Medicare Part D data, Dr. Chi's most prescribed drugs by claims were Methylprednisolone.
Has Dr. John H. Chi received payments from drug or device companies?
CMS Open Payments shows $356,883 in general payments to Dr. Chi from 29 companies from 2016 to 2025. The largest total came from Stryker Corporation.
How long has Dr. John H. Chi been practicing?
Dr. Chi graduated from medical school in 2001, 25 years ago.
Does Dr. John H. Chi do research?
Dmand AI links 173 publications to Dr. Chi, published from 2005 to 2024. Dr. Chi has worked on 2 clinical trials.
Who does Dr. John H. Chi publish with?
Dr. Chi's most frequent co-authors are Yi Lu, MD, PhD (18 shared papers), Viren S. Vasudeva, MD (13 shared papers) and Sanjay Singh Dhall, MD (11 shared papers).
What insurance does Dr. John H. Chi accept?
Dr. Chi is in network with 18 carriers, including Elevance, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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