Dr. David A. Harmon, MD
- Medicare services, 2024
- 103
- Medicare patients, 2024
- 100
- Part D claims, 2024
- 1,258
- Hospital affiliations
- 2
- Industry payments
- $426
- Practice address
- One Memorial Drive, Alton, IL 62002
- Practice phone
- Call (314) 286-2227
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Harmon'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 A. Harmon is a family medicine physician in Alton, Illinois
Dr. Harmon practices at Alton Memorial Hospital in Alton, Illinois, part of BJC Health.
Dr. Harmon's NPI, 1033175633, was assigned on April 22, 2006. Dr. Harmon graduated from Southern Illinois University School of Medicine in 1983. Dr. Harmon holds Illinois license 036069786.
- NPI
- 1033175633NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860383098
- NPI enumeration date
- April 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 286-2227
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David A. Harmon practices at 2 locations in Alton, Illinois
Dr. Harmon's primary practice is Alton Memorial Hospital, at One Memorial Drive, Alton, IL 62002 in Madison County. The practice phone is (314) 286-2227. Dr. Harmon also practices at Alton Memorial Hospital, 1 Memorial Dr, Alton, IL 62002.
- Alton Memorial HospitalPrimaryOne Memorial Drive, Alton, IL 62002 · Madison CountyPhone(314) 286-2227
- Alton Memorial Hospital1 Memorial Dr, Alton, IL 62002 · Madison CountyPhone(618) 463-7311
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. David A. Harmon is affiliated with 4 sites of care and 1 medical group
Dr. Harmon's primary practice is Alton Memorial Hospital in Alton, Illinois, part of BJC Health. Dr. Harmon is also affiliated with Memorial Hospital in Belleville. The medical group on file is BJC Medical Group. Dmand AI also links Dr. Harmon to 2 more hospices, 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. David A. Harmon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harmon practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Alton Memorial Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across BJC Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David A. Harmon is one of 5,105 family medicine physicians in Illinois
Family medicine is Dr. Harmon's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Harmon is licensed in Illinois.
Specialties and state licenses
- Family medicine, IllinoisPrimary
Family medicine physicians near Dr. Harmon
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 A. Harmon billed Medicare for 103 services in 2024
CMS data shows 103 Medicare services from Dr. Harmon across 3 procedure codes in 2024, for 100 Medicare patients. Medicare paid $10,852 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Harmon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1062024: 1033%
Dr. Harmon compared with the Illinois median for family medicine physicians, 2024
- Dr. Harmon
- Illinois median
- Medicare services
- 103vs 35671% below
- Medicare patients
- 100vs 16038% below
- Part D claims
- 880vs 61842% above
Medians across 5,015 family medicine physicians in Illinois with Dmand AI profiles that report each measure.
Dr. Harmon'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. Harmon?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Harmon 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 A. Harmon treated 100 Medicare patients in 2024, average age 79
CMS counts 100 Medicare patients who saw Dr. Harmon in 2024. The largest group is 75 to 84, with 42 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 28% are also on Medicaid. Their average risk score is 3.14, 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. Harmon's median patient age at 81, with 53% women.
Dr. Harmon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Harmon's Medicare patients by sex, 2024
- Women5656%
- Men4444%
Chronic conditions among Dr. Harmon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Chronic kidney disease63%
- Heart failure62%
- Ischemic heart disease56%
- Atrial fibrillation54%
- COPD49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harmon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
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. David A. Harmon wrote 1,258 Medicare Part D claims in 2024
In 2024, Dr. Harmon wrote 1,258 Medicare Part D claims for 262 patients. 84% of them were for generic drugs. CMS names the drug for 880 of them, across 37 drugs with 11 or more claims each, at $38,074 in total drug cost. In 2023, CMS named 804 claims across 33 drugs.
Dr. Harmon's Part D claims by kind of drug, 2024
- Generic1,053 claims84%
- Brand-name186 claims15%
- Other19 claims2%
Dr. Harmon'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. Harmon's Part D claims, 2024
- Opioids5%66 of 1,258 claims
- Antibiotics3%41 of 1,258 claims
- Antipsychotics, patients 65 and over6%72 of 1,258 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: 8042024: 8809%
Drugs named by CMS: 37 in 2024, 33 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. David A. Harmon takes part in Medicare
Dr. Harmon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David A. Harmon received $426 in industry payments from 2016 to 2024
CMS Open Payments shows 24 general payments to Dr. Harmon from 13 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $64.
General payments to Dr. Harmon by program year, 2016 to 2024
Companies that paid Dr. Harmon 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. David A. Harmon graduated from Southern Illinois University School of Medicine
Dr. Harmon graduated from Southern Illinois University School of Medicine in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David A. Harmon'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 Affiliation DataDmand AI Practice 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) |
| 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 A. Harmon
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 A. Harmon's NPI number?
Dr. David A. Harmon's NPI number is 1033175633. It was assigned on April 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David A. Harmon?
Dr. David A. Harmon is a family medicine physician in Alton, Illinois. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David A. Harmon practice?
Dr. Harmon practices at One Memorial Drive, Alton, IL 62002. Dr. Harmon also practices at 1 Memorial Dr, Alton, IL 62002. Dr. Harmon's primary practice is Alton Memorial Hospital in Alton, Illinois, part of BJC Health. Dmand AI also links Dr. Harmon to 2 hospices.
What is Dr. David A. Harmon's office phone number?
The practice phone on file for Dr. Harmon is (314) 286-2227.
What is Dr. David A. Harmon's medical license number?
Dr. Harmon holds Illinois license 036069786.
Which hospitals is Dr. David A. Harmon affiliated with?
Dr. Harmon practices at Alton Memorial Hospital in Alton, Illinois. Dr. Harmon is also affiliated with Memorial Hospital in Belleville.
What medical group is Dr. David A. Harmon part of?
Dr. Harmon is linked to BJC Medical Group.
Does Dr. David A. Harmon accept Medicare?
Yes. CMS data shows Dr. Harmon billed Medicare for 103 services in 2024, and Dr. Harmon accepts Medicare assignment.
How many Medicare patients does Dr. David A. Harmon see?
CMS counts 100 Medicare patients who saw Dr. Harmon in 2024, with an average age of 79.
What services does Dr. David A. Harmon bill to Medicare?
In 2024, Dr. Harmon's most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99221) and hospital inpatient care (99222).
Show 4 more questionsShow fewer questions
Where did Dr. David A. Harmon go to medical school?
Dr. Harmon graduated from Southern Illinois University School of Medicine in 1983.
What drugs does Dr. David A. Harmon prescribe most?
In 2024 Medicare Part D data, Dr. Harmon's most prescribed drugs by claims were Eliquis, Levothyroxine Sodium and Carvedilol.
Has Dr. David A. Harmon received payments from drug or device companies?
CMS Open Payments shows $426 in general payments to Dr. Harmon from 13 companies from 2016 to 2024. The largest total came from Pfizer Inc.
How long has Dr. David A. Harmon been practicing?
Dr. Harmon graduated from medical school in 1983, 43 years ago.
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