Dr. Douglas Caldwell Collins, MD
- Medicare services, 2024
- 192
- Medicare patients, 2024
- 67
- Part D claims, 2024
- 3,070
- Hospital affiliations
- 1
- Industry payments
- $704
- Practice address
- 1412 Milstead Avenue, NE, Conyers, GA 30012
- Practice phone
- Call (770) 918-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Collins' professional email, personal email and mobile number
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Dr. Douglas Caldwell Collins is a hematologist and oncologist in Conyers, Georgia
Dr. Collins practices at Piedmont Rockdale in Conyers, Georgia, part of Piedmont Healthcare.
Dr. Collins' NPI, 1306937461, was assigned on September 27, 2006. Dr. Collins graduated from University of Washington School of Medicine in 1977. Dr. Collins holds Georgia license 020092.
- NPI
- 1306937461NPI Registry (opens in a new tab)
- NPI enumeration date
- September 27, 2006
- NPI status
- Active
- Practice phone
- (770) 918-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Douglas Caldwell Collins practices at Piedmont Rockdale in Conyers, Georgia
Dr. Collins' primary practice is Piedmont Rockdale, at 1412 Milstead Avenue, NE, Conyers, GA 30012 in Rockdale County. The practice phone is (770) 918-3000.
- Piedmont Rockdale1412 Milstead Avenue, NE, Conyers, GA 30012 · Rockdale CountyPhone(770) 918-3000
Source: Dmand AI Affiliation Data
Dr. Douglas Caldwell Collins is affiliated with 2 sites of care
Dr. Collins' primary practice is Piedmont Rockdale in Conyers, Georgia, part of Piedmont Healthcare. Dmand AI also links Dr. Collins to 1 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. Douglas Caldwell Collins' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Collins practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Piedmont Rockdale | Available with a free account |
| +1 more affiliated site | 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 Piedmont Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Douglas Caldwell Collins is one of 379 hematologists and oncologists in Georgia
Hematology and oncology is Dr. Collins' primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Collins is licensed in Georgia.
Specialties and state licenses
- Hematology and oncology, GeorgiaPrimary
Hematologists and oncologists near Dr. Collins
Counts of hematologists and oncologists 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. Douglas Caldwell Collins billed Medicare for 192 services in 2024
CMS data shows 192 Medicare services from Dr. Collins across 2 procedure codes in 2024, for 67 Medicare patients. Medicare paid $14,884 for them.
Dr. Collins' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5842024: 19267%
Where Dr. Collins' Medicare services took place, 2024
- In an office15581%
- In a facility3719%
Dr. Collins compared with the Georgia median for hematologists and oncologists, 2024
- Dr. Collins
- Georgia median
- Medicare services
- 192vs 69172% below
- Medicare patients
- 67vs 23571% below
- Part D claims
- 2,784vs 6754.1 times
Medians across 350 hematologists and oncologists in Georgia with Dmand AI profiles that report each measure.
Dr. Collins' 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. Collins and other hematologists and oncologists in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas Caldwell Collins treated 67 Medicare patients in 2024, average age 54
CMS counts 67 Medicare patients who saw Dr. Collins in 2024. The largest group is under 65, with 40 patients. 46% of them have high blood pressure, and 39% have high cholesterol. 55% are also on Medicaid. Their average risk score is 2.73, 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. Collins' median patient age at 67, with 76% women.
Dr. Collins' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Collins' Medicare patients by sex, 2024
- Women4161%
- Men2639%
Chronic conditions among Dr. Collins' Medicare patients, 2024
- High blood pressure46%
- High cholesterol39%
- Alcohol and drug use disorders25%
- Anxiety25%
- Arthritis25%
- Diabetes21%
- Chronic kidney disease19%
- Mood disorders16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Collins' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women76%
- Men24%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas Caldwell Collins wrote 3,070 Medicare Part D claims in 2024
In 2024, Dr. Collins wrote 3,070 Medicare Part D claims for 181 patients. 84% of them were for generic drugs. CMS names the drug for 2,784 of them, across 42 drugs with 11 or more claims each, at $1,233,923 in total drug cost. In 2023, CMS named 3,564 claims across 54 drugs.
Dr. Collins' Part D claims by kind of drug, 2024
- Generic2,578 claims84%
- Brand-name492 claims16%
Dr. Collins' 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. Collins' Part D claims, 2024
- Opioids51%1,560 of 3,070 claims
- Antibiotics1%16 of 3,070 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: 3,5642024: 2,78422%
Drugs named by CMS: 42 in 2024, 54 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. Douglas Caldwell Collins received $704 in industry payments from 2016 to 2022
CMS Open Payments shows 31 general payments to Dr. Collins from 10 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 93% of the total. Bristol-Myers Squibb Company paid the most, $205.
General payments to Dr. Collins by program year, 2016 to 2022
General payments to Dr. Collins by kind, 2016 to 2022
- Food and beverage$65793%
- Education$467%
Companies that paid Dr. Collins 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. Douglas Caldwell Collins graduated from University of Washington School of Medicine
Dr. Collins graduated from University of Washington School of Medicine in 1977.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Douglas Caldwell Collins'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) |
| 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. Douglas Caldwell Collins
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. Douglas Caldwell Collins' NPI number?
Dr. Douglas Caldwell Collins' NPI number is 1306937461. It was assigned on September 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas Caldwell Collins?
Dr. Douglas Caldwell Collins is a hematologist and oncologist in Conyers, Georgia. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Douglas Caldwell Collins practice?
Dr. Collins practices at 1412 Milstead Avenue, NE, Conyers, GA 30012. Dr. Collins' primary practice is Piedmont Rockdale in Conyers, Georgia, part of Piedmont Healthcare. Dmand AI also links Dr. Collins to 1 physician office.
What is Dr. Douglas Caldwell Collins' office phone number?
The practice phone on file for Dr. Collins is (770) 918-3000.
What is Dr. Douglas Caldwell Collins' medical license number?
Dr. Collins holds Georgia license 020092.
Which hospitals is Dr. Douglas Caldwell Collins affiliated with?
Dr. Collins practices at Piedmont Rockdale in Conyers, Georgia.
Does Dr. Douglas Caldwell Collins accept Medicare?
Yes. CMS data shows Dr. Collins billed Medicare for 192 services in 2024.
How many Medicare patients does Dr. Douglas Caldwell Collins see?
CMS counts 67 Medicare patients who saw Dr. Collins in 2024, with an average age of 54.
What services does Dr. Douglas Caldwell Collins bill to Medicare?
In 2024, Dr. Collins' most billed Medicare services were office visit, established patient (99214) and hospital inpatient care (99233).
Where did Dr. Douglas Caldwell Collins go to medical school?
Dr. Collins graduated from University of Washington School of Medicine in 1977.
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What drugs does Dr. Douglas Caldwell Collins prescribe most?
In 2024 Medicare Part D data, Dr. Collins' most prescribed drugs by claims were Oxycodone HCl, Morphine Sulfate ER and Methadone HCl.
Has Dr. Douglas Caldwell Collins received payments from drug or device companies?
CMS Open Payments shows $704 in general payments to Dr. Collins from 10 companies from 2016 to 2022. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Douglas Caldwell Collins been practicing?
Dr. Collins graduated from medical school in 1977, 49 years ago.
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