Dr. David Carl Gregory, MD
- Medicare services, 2017
- 552
- Part D claims, 2024
- 131
- Industry payments
- $6,880
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2214 N University St, Peoria, IL 61604
- Practice phone
- Call (309) 680-7600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Heartland Health Services - Wisconsin
Peoria, Illinois
Find Dr. Gregory'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. David Carl Gregory is a family medicine physician in Peoria, Illinois
Dr. Gregory practices at Heartland Health Services - Wisconsin in Peoria, Illinois.
Dr. Gregory's NPI, 1871599522, was assigned on June 27, 2005. Dr. Gregory graduated from Southern Illinois University School of Medicine in 1998. Dr. Gregory holds Illinois license 036103155.
- NPI
- 1871599522NPI Registry (opens in a new tab)
- NPI enumeration date
- June 27, 2005
- NPI status
- Active
- Practice phone
- (309) 680-7600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. David Carl Gregory practices at Heartland Health Services - Wisconsin in Peoria, Illinois
Dr. Gregory's primary practice is Heartland Health Services - Wisconsin, at 2214 N University St, Peoria, IL 61604 in Peoria County. The practice phone is (309) 680-7600.
- Heartland Health Services - Wisconsin2214 N University St, Peoria, IL 61604 · Peoria CountyPhone(309) 680-7600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Carl Gregory is affiliated with 2 sites of care and 1 medical group
Dr. Gregory's primary practice is Heartland Health Services - Wisconsin in Peoria, Illinois. The medical group on file is Heartland Health Services. Dmand AI also links Dr. Gregory to 1 more community health center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Carl Gregory's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gregory practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Heartland Health Services - Wisconsin | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Carl Gregory is one of 5,105 family medicine physicians in Illinois
Family medicine is Dr. Gregory's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Gregory is licensed in Illinois.
Specialties and state licenses
- Family medicine, IllinoisPrimary
Family medicine physicians near Dr. Gregory
Counts of family medicine physicians 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. David Carl Gregory billed Medicare for 552 services in 2017
CMS data shows 552 Medicare services from Dr. Gregory across 4 procedure codes in 2017. Medicare paid $23,899 for them. Every service was in an office.
Dr. Gregory's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 1,0312017: 49852%
- Lab and pathology
- 2016: 892017: 5439%
- Tests and treatments
- 2016: 672017: 0100%
- Surgery
- 2016: 2152017: 0100%
Dr. Gregory compared with the Illinois median for family medicine physicians, 2017
- Dr. Gregory
- Illinois median
- Medicare services
- 552vs 35655% above
- Part D claims
- 31vs 61895% below
Medians across 5,015 family medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Gregory's most billed Medicare procedure codes, 2017
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. Gregory and other family medicine physicians in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Carl Gregory's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Gregory's median patient age at 62, with 44% women.
Dr. Gregory's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women44%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. David Carl Gregory wrote 131 Medicare Part D claims in 2024
In 2024, Dr. Gregory wrote 131 Medicare Part D claims for 33 patients. 82% of them were for generic drugs. CMS names the drug for 31 of them, across 1 drug with 11 or more claims each, at $426 in total drug cost. In 2022, CMS named 5,303 claims across 105 drugs.
Dr. Gregory's Part D claims by kind of drug, 2024
- Generic108 claims82%
- Brand-name and other23 claims18%
Dr. Gregory's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 5,3032023: 3199%
Drugs named by CMS: 1 in 2023, 105 in 2022.
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
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Dr. David Carl Gregory received $6,880 in industry payments from 2016 to 2022
CMS Open Payments shows 350 general payments to Dr. Gregory from 38 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 99% of the total. GlaxoSmithKline, LLC. paid the most, $895.
General payments to Dr. Gregory by program year, 2016 to 2022
General payments to Dr. Gregory by kind, 2016 to 2022
- Food and beverage$6,81499%
- Education$661%
Companies that paid Dr. Gregory the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Carl Gregory graduated from Southern Illinois University School of Medicine
Dr. Gregory graduated from Southern Illinois University School of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Carl Gregory'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 Data |
| 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) |
| 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. David Carl Gregory
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. David Carl Gregory's NPI number?
Dr. David Carl Gregory's NPI number is 1871599522. It was assigned on June 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David Carl Gregory?
Dr. David Carl Gregory is a family medicine physician in Peoria, Illinois. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David Carl Gregory practice?
Dr. Gregory practices at 2214 N University St, Peoria, IL 61604. Dr. Gregory's primary practice is Heartland Health Services - Wisconsin in Peoria, Illinois. Dmand AI also links Dr. Gregory to 1 community health center.
What is Dr. David Carl Gregory's office phone number?
The practice phone on file for Dr. Gregory is (309) 680-7600.
What is Dr. David Carl Gregory's medical license number?
Dr. Gregory holds Illinois license 036103155.
What medical group is Dr. David Carl Gregory part of?
Dr. Gregory is linked to Heartland Health Services.
Does Dr. David Carl Gregory accept Medicare?
Yes. CMS data shows Dr. Gregory billed Medicare for 552 services in 2017.
What services does Dr. David Carl Gregory bill to Medicare?
In 2017, Dr. Gregory's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and lab and pathology test (82274).
Where did Dr. David Carl Gregory go to medical school?
Dr. Gregory graduated from Southern Illinois University School of Medicine in 1998.
What drugs does Dr. David Carl Gregory prescribe most?
In 2023 Medicare Part D data, Dr. Gregory's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. David Carl Gregory received payments from drug or device companies?
CMS Open Payments shows $6,880 in general payments to Dr. Gregory from 38 companies from 2016 to 2022. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. David Carl Gregory been practicing?
Dr. Gregory graduated from medical school in 1998, 28 years ago.
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