Dr. David William Barnes, DO
- Medicare services, 2024
- 1,099
- Medicare patients, 2024
- 270
- Part D claims, 2024
- 1,037
- Industry payments
- $14
- Affiliated sites
- 2
- Practice address
- 420 Dean Drive, Gardendale, AL 35071
- Practice phone
- Call (205) 631-8709
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Magnolia Ridge
Skilled Nursing Facility · Gardendale, Alabama
Find Dr. Barnes' professional email, personal email and mobile number
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Dr. David William Barnes is an internist in Gardendale, Alabama
Dr. Barnes practices at Magnolia Ridge in Gardendale, Alabama.
Dr. Barnes' NPI, 1366466302, was assigned on July 26, 2006. Dr. Barnes holds Pennsylvania license OS-007113-L.
- NPI
- 1366466302NPI Registry (opens in a new tab)
- NPI enumeration date
- July 26, 2006
- NPI status
- Active
- Practice phone
- (205) 631-8709
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David William Barnes practices at Magnolia Ridge in Gardendale, Alabama
Dr. Barnes' primary practice is Magnolia Ridge, at 420 Dean Drive, Gardendale, AL 35071 in Jefferson County. The practice phone is (205) 631-8709.
- Magnolia Ridge420 Dean Drive, Gardendale, AL 35071 · Jefferson CountyPhone(205) 631-8709
Source: Dmand AI Affiliation Data
Dr. David William Barnes is affiliated with 2 sites of care and 5 medical groups
Dr. Barnes' primary practice is Magnolia Ridge in Gardendale, Alabama. The medical group on file is Signify Health. Dmand AI also links Dr. Barnes to 4 more medical groups and 1 group practice or clinic, 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 William Barnes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barnes practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Magnolia Ridge | Available with a free account |
| +1 more site and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David William Barnes is one of 1,685 internists in Alabama
Internal medicine is Dr. Barnes' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Barnes is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Barnes
Counts of internists 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 William Barnes billed Medicare for 1,099 services in 2024
CMS data shows 1,099 Medicare services from Dr. Barnes across 8 procedure codes in 2024, for 270 Medicare patients. Medicare paid $104,056 for them.
Dr. Barnes' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9742024: 1,0649%
- Other services
- 2023: 402024: 3513%
Where Dr. Barnes' Medicare services took place, 2024
- In an office50646%
- In a facility59354%
Dr. Barnes compared with the Alabama median for internists, 2024
- Dr. Barnes
- Alabama median
- Medicare services
- 1,099vs 66466% above
- Medicare patients
- 270vs 20333% above
- Part D claims
- 654vs 50031% above
Medians across 1,610 internists in Alabama with Dmand AI profiles that report each measure.
Dr. Barnes' 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. Barnes and other internists in Alabama.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David William Barnes treated 270 Medicare patients in 2024, average age 79
CMS counts 270 Medicare patients who saw Dr. Barnes in 2024. The largest group is 75 to 84, with 91 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.76, 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. Barnes' median patient age at 74, with 51% women.
Dr. Barnes' Medicare patients by age, 2024
Dr. Barnes' Medicare patients by sex, 2024
- Women16461%
- Men10639%
Chronic conditions among Dr. Barnes' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders68%
- Arthritis67%
- Depression56%
- Chronic kidney disease53%
- Diabetes52%
- Ischemic heart disease51%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barnes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David William Barnes wrote 1,037 Medicare Part D claims in 2024
In 2024, Dr. Barnes wrote 1,037 Medicare Part D claims for 142 patients. 90% of them were for generic drugs. CMS names the drug for 654 of them, across 29 drugs with 11 or more claims each, at $17,512 in total drug cost. In 2023, CMS named 477 claims across 18 drugs.
Dr. Barnes' Part D claims by kind of drug, 2024
- Generic932 claims90%
- Brand-name and other105 claims10%
Dr. Barnes' 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. Barnes' Part D claims, 2024
- Opioids2%16 of 1,037 claims
- Antibiotics1%14 of 1,037 claims
- Antipsychotics, patients 65 and over3%36 of 1,037 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: 4772024: 65437%
Drugs named by CMS: 29 in 2024, 18 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
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Dr. David William Barnes received $14 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Barnes from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. ANI Pharmaceuticals, Inc. paid the most, $14.
Companies that paid Dr. Barnes the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David William Barnes'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 William Barnes
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 William Barnes' NPI number?
Dr. David William Barnes' NPI number is 1366466302. It was assigned on July 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David William Barnes?
Dr. David William Barnes is an internist in Gardendale, Alabama. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David William Barnes practice?
Dr. Barnes practices at 420 Dean Drive, Gardendale, AL 35071. Dr. Barnes' primary practice is Magnolia Ridge in Gardendale, Alabama. Dmand AI also links Dr. Barnes to 4 medical groups and 1 group practice or clinic.
What is Dr. David William Barnes' office phone number?
The practice phone on file for Dr. Barnes is (205) 631-8709.
What is Dr. David William Barnes' medical license number?
Dr. Barnes holds Pennsylvania license OS-007113-L.
What medical group is Dr. David William Barnes part of?
Dr. Barnes is linked to Signify Health. Dmand AI links Dr. Barnes to 4 more medical groups.
Does Dr. David William Barnes accept Medicare?
Yes. CMS data shows Dr. Barnes billed Medicare for 1,099 services in 2024.
How many Medicare patients does Dr. David William Barnes see?
CMS counts 270 Medicare patients who saw Dr. Barnes in 2024, with an average age of 79.
What services does Dr. David William Barnes bill to Medicare?
In 2024, Dr. Barnes' most billed Medicare services were nursing facility care (99309), nursing facility care (99310) and care management and other visits (99497).
What drugs does Dr. David William Barnes prescribe most?
In 2024 Medicare Part D data, Dr. Barnes' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Gabapentin.
Has Dr. David William Barnes received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Barnes from 1 company from 2025 to 2025. The largest total came from ANI Pharmaceuticals, Inc.
How long has Dr. David William Barnes been practicing?
Dr. Barnes' NPI was assigned in 2006.
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