Dr. Keith Gregory Chisholm, MD
- Medicare services, 2024
- 146
- Medicare patients, 2024
- 90
- Part D claims, 2024
- 93
- Hospital affiliations
- 2
- Industry payments
- $6,913
- Practice address
- 9330 Sr 54, Trinity, FL 34655
- Practice phone
- Call (727) 834-4900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chisholm'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. Keith Gregory Chisholm is a general surgeon in New Port Richey, Florida
Dr. Chisholm practices at HCA Florida Trinity Hospital in Trinity, Florida, part of HCA Healthcare.
Dr. Chisholm's NPI, 1164520375, was assigned on September 20, 2006. Dr. Chisholm graduated from University of North Carolina School of Medicine in 1996. Dr. Chisholm holds Florida license ME83998.
- NPI
- 1164520375NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254423221
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (727) 834-4900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Keith Gregory Chisholm practices at HCA Florida Trinity Hospital in Trinity, Florida
Dr. Chisholm's primary practice is HCA Florida Trinity Hospital, at 9330 Sr 54, Trinity, FL 34655 in Pasco County. The practice phone is (727) 834-4900.
- HCA Florida Trinity Hospital9330 Sr 54, Trinity, FL 34655 · Pasco CountyPhone(727) 834-4900
Source: Dmand AI Affiliation Data
Dr. Keith Gregory Chisholm is affiliated with 3 sites of care
Dr. Chisholm's primary practice is HCA Florida Trinity Hospital in Trinity, Florida, part of HCA Healthcare. Dr. Chisholm is also affiliated with BayCare Morton Plant North Bay Hospital. Dmand AI also links Dr. Chisholm to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Keith Gregory Chisholm's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chisholm practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Florida Trinity Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Keith Gregory Chisholm is one of 1,593 general surgeons in Florida
Surgery is Dr. Chisholm's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chisholm is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Chisholm's licenses on file in 2 states: Florida and North Carolina.
Specialties and state licenses
- Surgery, FloridaPrimary
- North Carolina license
Clinical focus
Dmand AI lists abdominal adhesion surgery, abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, colonoscopy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal and groin hernia surgery among the conditions Dr. Chisholm treats.
General surgeons near Dr. Chisholm
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
Dr. Keith Gregory Chisholm billed Medicare for 146 services in 2024
CMS data shows 146 Medicare services from Dr. Chisholm across 3 procedure codes in 2024, for 90 Medicare patients. Medicare paid $11,876 for them.
Dr. Chisholm's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1942024: 14625%
- Surgery
- 2023: 112024: 0100%
Where Dr. Chisholm's Medicare services took place, 2024
- In an office128%
- In a facility13492%
Dr. Chisholm compared with the Florida median for general surgeons, 2024
- Dr. Chisholm
- Florida median
- Medicare services
- 146vs 19826% below
- Medicare patients
- 90vs 13332% below
- Part D claims
- 66vs 4353% above
Medians across 1,425 general surgeons in Florida with Dmand AI profiles that report each measure.
Dr. Chisholm'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. Chisholm and other general surgeons in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Keith Gregory Chisholm treated 90 Medicare patients in 2024, average age 75
CMS counts 90 Medicare patients who saw Dr. Chisholm in 2024. The largest group is 65 to 74, with 34 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.03, 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. Chisholm's median patient age at 56, with 57% women.
Dr. Chisholm's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chisholm's Medicare patients by sex, 2024
- Women5056%
- Men4044%
Chronic conditions among Dr. Chisholm's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease50%
- Mood disorders47%
- Chronic kidney disease44%
- Depression44%
- Anxiety40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chisholm's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Keith Gregory Chisholm wrote 93 Medicare Part D claims in 2024
In 2024, Dr. Chisholm wrote 93 Medicare Part D claims for 74 patients. 99% of them were for generic drugs. CMS names the drug for 66 of them, across 1 drug with 11 or more claims each, at $390 in total drug cost. In 2023, CMS named 58 claims across 1 drug.
Dr. Chisholm's Part D claims by kind of drug, 2024
- Generic92 claims99%
- Brand-name and other1 claims1%
Dr. Chisholm'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. Chisholm's Part D claims, 2024
- Opioids77%72 of 93 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: 582024: 6614%
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
How Dr. Keith Gregory Chisholm takes part in Medicare
Dr. Chisholm accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 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)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Keith Gregory Chisholm received $6,913 in industry payments from 2016 to 2025
CMS Open Payments shows 75 general payments to Dr. Chisholm from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 44% of the total. Intuitive Surgical, Inc. paid the most, $5,790.
General payments to Dr. Chisholm by program year, 2016 to 2025
General payments to Dr. Chisholm by kind, 2016 to 2025
- Food and beverage$3,06144%
- Travel and lodging$2,83941%
- Speaker and faculty fees$1,00014%
- Gifts$140%
Companies that paid Dr. Chisholm 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. Keith Gregory Chisholm has 1 award and honors on record
Dmand AI lists 1 award for Dr. Chisholm.
Awards and honors for Dr. Chisholm
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Keith Gregory Chisholm graduated from University of North Carolina School of Medicine
Dr. Chisholm graduated from University of North Carolina School of Medicine in 1996. Dr. Chisholm is a member of ACS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Keith Gregory Chisholm accepts plans from 16 insurance carriers
Dr. Chisholm is in network with 16 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Elevance
- Humana
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- +8 more carriersWith a free account
Plan types Dr. Chisholm accepts, by number of carriers
- PPO10
- HMO9
- Medicare7
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Keith Gregory Chisholm'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) |
| 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. Keith Gregory Chisholm
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. Keith Gregory Chisholm's NPI number?
Dr. Keith Gregory Chisholm's NPI number is 1164520375. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Keith Gregory Chisholm?
Dr. Keith Gregory Chisholm is a general surgeon in New Port Richey, Florida. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Keith Gregory Chisholm practice?
Dr. Chisholm practices at 9330 Sr 54, Trinity, FL 34655. Dr. Chisholm's primary practice is HCA Florida Trinity Hospital in Trinity, Florida, part of HCA Healthcare. Dmand AI also links Dr. Chisholm to 1 physician office.
What is Dr. Keith Gregory Chisholm's office phone number?
The practice phone on file for Dr. Chisholm is (727) 834-4900.
What is Dr. Keith Gregory Chisholm's medical license number?
Dr. Chisholm holds Florida license ME83998, one of the licenses on file in 2 states.
Which states has Dr. Keith Gregory Chisholm been licensed in?
Dmand AI has state licenses on file for Dr. Chisholm in Florida (2001 to 2026) and North Carolina (1993 to 1996).
Which hospitals is Dr. Keith Gregory Chisholm affiliated with?
Dr. Chisholm practices at HCA Florida Trinity Hospital in Trinity, Florida. Dr. Chisholm is also affiliated with BayCare Morton Plant North Bay Hospital.
Does Dr. Keith Gregory Chisholm accept Medicare?
Yes. CMS data shows Dr. Chisholm billed Medicare for 146 services in 2024, and Dr. Chisholm accepts Medicare assignment.
How many Medicare patients does Dr. Keith Gregory Chisholm see?
CMS counts 90 Medicare patients who saw Dr. Chisholm in 2024, with an average age of 75.
Is Dr. Keith Gregory Chisholm board certified?
Yes. Dr. Chisholm is board certified in surgery by the American Board of Surgery.
Show 6 more questionsShow fewer questions
What services does Dr. Keith Gregory Chisholm bill to Medicare?
In 2024, Dr. Chisholm's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and office visit, new patient (99204).
Where did Dr. Keith Gregory Chisholm go to medical school?
Dr. Chisholm graduated from University of North Carolina School of Medicine in 1996.
What drugs does Dr. Keith Gregory Chisholm prescribe most?
In 2024 Medicare Part D data, Dr. Chisholm's most prescribed drugs by claims were Oxycodone-Acetaminophen.
Has Dr. Keith Gregory Chisholm received payments from drug or device companies?
CMS Open Payments shows $6,913 in general payments to Dr. Chisholm from 10 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Keith Gregory Chisholm been practicing?
Dr. Chisholm graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Keith Gregory Chisholm accept?
Dr. Chisholm is in network with 16 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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