Dr. Donald C. Gerhardt, MD
- Medicare services, 2023
- 374
- Part D claims, 2024
- 44
- Hospital affiliations
- 1
- Industry payments
- $3,357
- Medical groups
- 2
- Practice address
- 1600 E Broadway, Columbia, MO 65201
- Practice phone
- Call (573) 815-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gerhardt's professional email, personal email and mobile number
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Dr. Donald C. Gerhardt is a gastroenterologist in Columbia, Missouri
Dr. Gerhardt practices at Boone Health in Columbia, Missouri, part of Boone County, Missouri.
Dr. Gerhardt's NPI, 1619921673, was assigned on May 22, 2006. Dr. Gerhardt graduated from Saint Louis University School of Medicine in 1972. Dr. Gerhardt holds Missouri license 34644.
- NPI
- 1619921673NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274635990
- NPI enumeration date
- May 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (573) 815-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Donald C. Gerhardt practices at Boone Health in Columbia, Missouri
Dr. Gerhardt's primary practice is Boone Health, at 1600 E Broadway, Columbia, MO 65201 in Boone County. The practice phone is (573) 815-8000.
- Boone Health1600 E Broadway, Columbia, MO 65201 · Boone CountyPhone(573) 815-8000
Source: Dmand AI Affiliation Data
Dr. Donald C. Gerhardt is affiliated with 3 sites of care and 2 medical groups
Dr. Gerhardt's primary practice is Boone Health in Columbia, Missouri, part of Boone County, Missouri. The medical group on file is Boone Health Medical Group. Dmand AI also links Dr. Gerhardt to 2 more group practices and clinics 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. Donald C. Gerhardt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gerhardt practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Boone Health | Available with a free account |
| +2 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 Boone County, Missouri and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Donald C. Gerhardt is one of 329 gastroenterologists in Missouri
Gastroenterology is Dr. Gerhardt's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Gerhardt is licensed in Missouri.
Specialties and state licenses
- Gastroenterology, MissouriPrimary
Gastroenterologists near Dr. Gerhardt
Counts of gastroenterologists 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. Donald C. Gerhardt billed Medicare for 374 services in 2023
CMS data shows 374 Medicare services from Dr. Gerhardt across 9 procedure codes in 2023. Medicare paid $39,673 for them.
Dr. Gerhardt's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Surgery
- 2022: 4662023: 20756%
- Office and hospital visits
- 2022: 1822023: 8852%
- Other services
- 2022: 672023: 5025%
- Tests and treatments
- 2022: 1682023: 2983%
Where Dr. Gerhardt's Medicare services took place, 2023
- In an office8824%
- In a facility28676%
Dr. Gerhardt compared with the Missouri median for gastroenterologists, 2023
- Dr. Gerhardt
- Missouri median
- Medicare services
- 374vs 41610% below
- Part D claims
- 17vs 43496% below
Medians across 337 gastroenterologists in Missouri with Dmand AI profiles that report each measure.
Dr. Gerhardt's most billed Medicare procedure codes, 2023
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. Gerhardt and other gastroenterologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Donald C. Gerhardt's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Gerhardt's median patient age at 65, with 54% women.
Dr. Gerhardt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Donald C. Gerhardt wrote 44 Medicare Part D claims in 2024
In 2024, Dr. Gerhardt wrote 44 Medicare Part D claims for 25 patients. 91% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $246 in total drug cost. In 2023, CMS named 447 claims across 11 drugs.
Dr. Gerhardt's Part D claims by kind of drug, 2024
- Generic40 claims91%
- Brand-name and other4 claims9%
Dr. Gerhardt'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: 4472024: 1796%
Drugs named by CMS: 1 in 2024, 11 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. Donald C. Gerhardt ranks in the 71st percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Gerhardt accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 76 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Gerhardt, more than 71% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Gerhardt ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 71st percentile76 procedures
- Colonoscopy
- 66th percentile56 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. Donald C. Gerhardt received $3,357 in industry payments from 2016 to 2024
CMS Open Payments shows 200 general payments to Dr. Gerhardt from 26 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 94% of the total. Janssen Pharmaceuticals, Inc paid the most, $1,010.
General payments to Dr. Gerhardt by program year, 2016 to 2024
General payments to Dr. Gerhardt by kind, 2016 to 2024
- Food and beverage$3,14994%
- Education$1956%
- Entertainment$120%
Companies that paid Dr. Gerhardt the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Donald C. Gerhardt graduated from Saint Louis University School of Medicine
Dr. Gerhardt graduated from Saint Louis University School of Medicine in 1972.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Donald C. Gerhardt'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 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) |
| 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) |
| 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. Donald C. Gerhardt
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. Donald C. Gerhardt's NPI number?
Dr. Donald C. Gerhardt's NPI number is 1619921673. It was assigned on May 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Donald C. Gerhardt?
Dr. Donald C. Gerhardt is a gastroenterologist in Columbia, Missouri. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Donald C. Gerhardt practice?
Dr. Gerhardt practices at 1600 E Broadway, Columbia, MO 65201. Dr. Gerhardt's primary practice is Boone Health in Columbia, Missouri, part of Boone County, Missouri. Dmand AI also links Dr. Gerhardt to 2 group practices and clinics and 1 medical group.
What is Dr. Donald C. Gerhardt's office phone number?
The practice phone on file for Dr. Gerhardt is (573) 815-8000.
What is Dr. Donald C. Gerhardt's medical license number?
Dr. Gerhardt holds Missouri license 34644.
Which hospitals is Dr. Donald C. Gerhardt affiliated with?
Dr. Gerhardt practices at Boone Health in Columbia, Missouri.
What medical group is Dr. Donald C. Gerhardt part of?
Dr. Gerhardt is linked to Boone Health Medical Group. Dmand AI links Dr. Gerhardt to 1 more medical group.
Does Dr. Donald C. Gerhardt accept Medicare?
Yes. CMS data shows Dr. Gerhardt billed Medicare for 374 services in 2023, and Dr. Gerhardt accepts Medicare assignment.
What services does Dr. Donald C. Gerhardt bill to Medicare?
In 2023, Dr. Gerhardt's most billed Medicare services were office visit, established patient (99213), surgery: digestive system (45385) and surgery: digestive system (43239).
Where did Dr. Donald C. Gerhardt go to medical school?
Dr. Gerhardt graduated from Saint Louis University School of Medicine in 1972.
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What drugs does Dr. Donald C. Gerhardt prescribe most?
In 2024 Medicare Part D data, Dr. Gerhardt's most prescribed drugs by claims were Omeprazole.
Has Dr. Donald C. Gerhardt received payments from drug or device companies?
CMS Open Payments shows $3,357 in general payments to Dr. Gerhardt from 26 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Donald C. Gerhardt been practicing?
Dr. Gerhardt graduated from medical school in 1972, 54 years ago.
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