Dr. Daniel Clayton Doornbos, MD
- Medicare services, 2024
- 350
- Medicare patients, 2024
- 94
- Part D claims, 2024
- 94
- Industry payments
- $328
- Affiliated sites
- 2
- Practice address
- 1325 San Marco Blvd, Jacksonville, FL 32207-8568
- Practice phone
- Call (904) 253-6910
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Respiratory Critical Care And Sleep Medicine Associates - Jacksonville (1325 San Marco Blvd)
Multi-specialty group site · Jacksonville, Florida
Find Dr. Doornbos' 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. Daniel Clayton Doornbos is an internist in Orange Park, Florida
Dr. Doornbos practices at Respiratory Critical Care And Sleep Medicine Associates - Jacksonville (1325 San Marco Blvd) in Jacksonville, Florida.
Dr. Doornbos' NPI, 1447289954, was assigned on June 30, 2006. Dr. Doornbos graduated from University of Kansas School of Med (KC/Wich/Sal) in 1984. Dr. Doornbos holds Florida license ME150001.
- NPI
- 1447289954NPI Registry (opens in a new tab)
- NPI enumeration date
- June 30, 2006
- NPI status
- Active
- Practice phone
- (904) 253-6910
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel Clayton Doornbos practices in Jacksonville and Orange Park
Dr. Doornbos' primary practice is Respiratory Critical Care and Sleep Medicine Associates - Jacksonville (1325 San Marco Blvd), at 1325 San Marco Blvd, Jacksonville, FL 32207-8568. The practice phone is (904) 253-6910. The NPI Registry lists Dr. Doornbos' practice address as 2001 Kingsley Ave, Orange Park, FL 32073.
- Respiratory Critical Care and Sleep Medicine Associates - Jacksonville (1325 San Marco Blvd)Primary1325 San Marco Blvd, Jacksonville, FL 32207-8568Phone(904) 253-6910
- NPI Registry address2001 Kingsley Ave, Orange Park, FL 32073 · Clay CountyPhone(904) 512-7239
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Daniel Clayton Doornbos is affiliated with 2 sites of care and 4 medical groups
Dr. Doornbos' primary practice is Respiratory Critical Care And Sleep Medicine Associates - Jacksonville (1325 San Marco Blvd) in Jacksonville, Florida. The medical group on file is MaineGeneral Health. Dmand AI also links Dr. Doornbos to 3 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Daniel Clayton Doornbos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Doornbos practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Respiratory Critical Care And Sleep Medicine Associates - Jacksonville (1325 San Marco Blvd) | Available with a free account |
| +1 more site and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel Clayton Doornbos is one of 9,009 internists in Florida
Internal medicine is Dr. Doornbos' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Doornbos is licensed in Florida.
Specialties and state licenses
- Internal medicine, FloridaPrimary
Internists near Dr. Doornbos
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. Daniel Clayton Doornbos billed Medicare for 350 services in 2024
CMS data shows 350 Medicare services from Dr. Doornbos across 3 procedure codes in 2024, for 94 Medicare patients. Medicare paid $34,857 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Doornbos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,9832024: 35082%
Dr. Doornbos compared with the Florida median for internists, 2024
- Dr. Doornbos
- Florida median
- Medicare services
- 350vs 55537% below
- Medicare patients
- 94vs 21556% below
- Part D claims
- 83vs 46682% below
Medians across 8,488 internists in Florida with Dmand AI profiles that report each measure.
Dr. Doornbos' 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. Doornbos and other internists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel Clayton Doornbos treated 94 Medicare patients in 2024, average age 80
CMS counts 94 Medicare patients who saw Dr. Doornbos in 2024. The largest group is 75 to 84, with 43 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 3.57, 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. Doornbos' median patient age at 68, with 46% women.
Dr. Doornbos' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Doornbos' Medicare patients by sex, 2024
- Women5457%
- Men4043%
Chronic conditions among Dr. Doornbos' Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders67%
- Ischemic heart disease65%
- Heart failure63%
- Chronic kidney disease62%
- Anxiety60%
Share of Medicare patients with each condition. A patient can have several.
Dr. Doornbos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel Clayton Doornbos wrote 94 Medicare Part D claims in 2024
In 2024, Dr. Doornbos wrote 94 Medicare Part D claims for 24 patients. 94% of them were for generic drugs. CMS names the drug for 83 of them, across 3 drugs with 11 or more claims each, at $32,688 in total drug cost. In 2021, CMS named 1,568 claims across 25 drugs.
Dr. Doornbos' Part D claims by kind of drug, 2024
- Generic88 claims94%
- Brand-name and other6 claims6%
Dr. Doornbos' most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,5682022: 8395%
Drugs named by CMS: 3 in 2022, 25 in 2021.
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. Daniel Clayton Doornbos received $328 in industry payments from 2016 to 2022
CMS Open Payments shows 16 general payments to Dr. Doornbos from 8 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 81% of the total. GlaxoSmithKline, LLC. paid the most, $73.
General payments to Dr. Doornbos by program year, 2016 to 2022
General payments to Dr. Doornbos by kind, 2016 to 2022
- Food and beverage$26681%
- Education$6219%
Companies that paid Dr. Doornbos 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. Daniel Clayton Doornbos graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Doornbos graduated from University of Kansas School of Med (KC/Wich/Sal) in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel Clayton Doornbos'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Daniel Clayton Doornbos
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. Daniel Clayton Doornbos' NPI number?
Dr. Daniel Clayton Doornbos' NPI number is 1447289954. It was assigned on June 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel Clayton Doornbos?
Dr. Daniel Clayton Doornbos is an internist in Orange Park, Florida. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Daniel Clayton Doornbos practice?
Dr. Doornbos practices at 1325 San Marco Blvd, Jacksonville, FL 32207-8568. Dr. Doornbos also practices at 2001 Kingsley Ave, Orange Park, FL 32073. Dr. Doornbos' primary practice is Respiratory Critical Care And Sleep Medicine Associates - Jacksonville (1325 San Marco Blvd) in Jacksonville, Florida. Dmand AI also links Dr. Doornbos to 3 medical groups and 1 group practice or clinic.
What is Dr. Daniel Clayton Doornbos' office phone number?
The practice phone on file for Dr. Doornbos is (904) 253-6910.
What is Dr. Daniel Clayton Doornbos' medical license number?
Dr. Doornbos holds Florida license ME150001.
What medical group is Dr. Daniel Clayton Doornbos part of?
Dr. Doornbos is linked to MaineGeneral Health. Dmand AI links Dr. Doornbos to 3 more medical groups.
Does Dr. Daniel Clayton Doornbos accept Medicare?
Yes. CMS data shows Dr. Doornbos billed Medicare for 350 services in 2024.
How many Medicare patients does Dr. Daniel Clayton Doornbos see?
CMS counts 94 Medicare patients who saw Dr. Doornbos in 2024, with an average age of 80.
What services does Dr. Daniel Clayton Doornbos bill to Medicare?
In 2024, Dr. Doornbos' most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99239).
Where did Dr. Daniel Clayton Doornbos go to medical school?
Dr. Doornbos graduated from University of Kansas School of Med (KC/Wich/Sal) in 1984.
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What drugs does Dr. Daniel Clayton Doornbos prescribe most?
In 2022 Medicare Part D data, Dr. Doornbos' most prescribed drugs by claims were Omeprazole, Trelegy Ellipta and Albuterol Sulfate Hfa.
Has Dr. Daniel Clayton Doornbos received payments from drug or device companies?
CMS Open Payments shows $328 in general payments to Dr. Doornbos from 8 companies from 2016 to 2022. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Daniel Clayton Doornbos been practicing?
Dr. Doornbos graduated from medical school in 1984, 42 years ago.
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