Dr. David Nathaniel Arthur Ryan, DO
- Medicare services, 2024
- 115
- Medicare patients, 2024
- 30
- Part D claims, 2024
- 12,319
- Industry payments
- $2,868
- Affiliated sites
- 2
- Practice address
- 3251 N McMullen Booth Rd, Clearwater, FL 33761
- Practice phone
- Call (727) 725-6110
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bowman & Hampsey Medical Clinic, Inc
Clearwater, Florida
Find Dr. Ryan'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 Nathaniel Arthur Ryan is a family medicine physician in Clearwater, Florida
Dr. Ryan practices at Bowman & Hampsey Medical Clinic, Inc in Clearwater, Florida.
Dr. Ryan's NPI, 1134130131, was assigned on August 11, 2006. Dr. Ryan graduated from Des Moines University in 2001. Dr. Ryan holds Alabama license DO1000.
- NPI
- 1134130131NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486693215
- NPI enumeration date
- August 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (727) 725-6110
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Nathaniel Arthur Ryan practices at Bowman & Hampsey Medical Clinic, Inc in Clearwater, Florida
Dr. Ryan's primary practice is Bowman & Hampsey Medical Clinic, Inc, at 3251 N McMullen Booth Rd, Clearwater, FL 33761 in Pinellas County. The practice phone is (727) 725-6110.
- Bowman & Hampsey Medical Clinic, Inc3251 N McMullen Booth Rd, Clearwater, FL 33761 · Pinellas CountyPhone(727) 725-6110
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Nathaniel Arthur Ryan is affiliated with 3 sites of care and 2 medical groups
Dr. Ryan's primary practice is Bowman & Hampsey Medical Clinic, Inc in Clearwater, Florida. The medical group on file is OneHealth. Dmand AI also links Dr. Ryan to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Nathaniel Arthur Ryan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bowman & Hampsey Medical Clinic, Inc | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Nathaniel Arthur Ryan is one of 7,735 family medicine physicians in Florida
Family medicine is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Ryan is board certified in 2008 - 2019 by the AL State License. Dr. Ryan is licensed in Alabama.
Specialties and state licenses
- Family medicine, AlabamaPrimary
Clinical focus
Dmand AI lists acid reflux, acute skin infection, aneurysm, atrial fibrillation and flutter, chronic diabetes, chronic embolism thrombosis, chronic hypertension and chronic kidney disease among the conditions Dr. Ryan treats.
Family medicine physicians near Dr. Ryan
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 Nathaniel Arthur Ryan billed Medicare for 115 services in 2024
CMS data shows 115 Medicare services from Dr. Ryan across 3 procedure codes in 2024, for 30 Medicare patients. Medicare paid $5,055 for them. Every service was in an office.
Dr. Ryan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 172024: 61259%
- Office and hospital visits
- 2023: 292024: 4141%
- Other services
- 2023: 112024: 1318%
Dr. Ryan compared with the Florida median for family medicine physicians, 2024
- Dr. Ryan
- Florida median
- Medicare services
- 115vs 39371% below
- Medicare patients
- 30vs 17283% below
- Part D claims
- 11,515vs 97911.8 times
Medians across 7,484 family medicine physicians in Florida with Dmand AI profiles that report each measure.
Dr. Ryan'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ryan and other family medicine physicians in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Nathaniel Arthur Ryan treated 30 Medicare patients in 2024, average age 74
CMS counts 30 Medicare patients who saw Dr. Ryan in 2024. The largest group is 65 to 74, with 14 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.68, 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. Ryan's median patient age at 71, with 50% women.
Dr. Ryan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Ryan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Chronic kidney disease40%
- Depression40%
- Mood disorders40%
- Anxiety37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ryan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Nathaniel Arthur Ryan wrote 12,319 Medicare Part D claims in 2024
In 2024, Dr. Ryan wrote 12,319 Medicare Part D claims for 615 patients. 87% of them were for generic drugs. CMS names the drug for 11,515 of them, across 149 drugs with 11 or more claims each, at $575,126 in total drug cost. In 2023, CMS named 11,666 claims across 150 drugs.
Dr. Ryan's Part D claims by kind of drug, 2024
- Generic10,739 claims87%
- Brand-name1,464 claims12%
- Other116 claims1%
Dr. Ryan'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. Ryan's Part D claims, 2024
- Opioids0%49 of 12,319 claims
- Antibiotics5%617 of 12,319 claims
- Antipsychotics, patients 65 and over0%45 of 12,319 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: 11,6662024: 11,5151%
Drugs named by CMS: 149 in 2024, 150 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 Nathaniel Arthur Ryan takes part in Medicare
Dr. Ryan 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 Nathaniel Arthur Ryan received $2,868 in industry payments from 2016 to 2025
CMS Open Payments shows 166 general payments to Dr. Ryan from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $617.
General payments to Dr. Ryan by program year, 2016 to 2025
General payments to Dr. Ryan by kind, 2016 to 2025
- Food and beverage$2,862100%
- Education$60%
Companies that paid Dr. Ryan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Nathaniel Arthur Ryan graduated from Des Moines University
Dr. Ryan graduated from Des Moines University in 2001. Dr. Ryan is a member of AOA.
- Medical school
- Board certified in 2008 - 2019
- Board certified in family practice and osteopathic manipulative medicine
- Board certified in 2022 - 2025
- Board certified in 2022 - 2026
- Board certified in 2001 - 2003
- Board certified in 2019 - 2022
Source: Dmand AI Professional Profile Data
Dr. David Nathaniel Arthur Ryan accepts plans from 18 insurance carriers
Dr. Ryan is in network with 18 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- Elevance
- HCSC
- Humana
- Alliant Health Plans
- +10 more carriersWith a free account
Plan types Dr. Ryan accepts, by number of carriers
- PPO13
- HMO9
- Medicare9
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Nathaniel Arthur Ryan'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 Nathaniel Arthur Ryan
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 Nathaniel Arthur Ryan's NPI number?
Dr. David Nathaniel Arthur Ryan's NPI number is 1134130131. It was assigned on August 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Nathaniel Arthur Ryan?
Dr. David Nathaniel Arthur Ryan is a family medicine physician in Clearwater, Florida. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David Nathaniel Arthur Ryan practice?
Dr. Ryan practices at 3251 N McMullen Booth Rd, Clearwater, FL 33761. Dr. Ryan's primary practice is Bowman & Hampsey Medical Clinic, Inc in Clearwater, Florida. Dmand AI also links Dr. Ryan to 2 group practices and clinics and 1 medical group.
What is Dr. David Nathaniel Arthur Ryan's office phone number?
The practice phone on file for Dr. Ryan is (727) 725-6110.
What is Dr. David Nathaniel Arthur Ryan's medical license number?
Dr. Ryan holds Alabama license DO1000.
What medical group is Dr. David Nathaniel Arthur Ryan part of?
Dr. Ryan is linked to OneHealth. Dmand AI links Dr. Ryan to 1 more medical group.
Does Dr. David Nathaniel Arthur Ryan accept Medicare?
Yes. CMS data shows Dr. Ryan billed Medicare for 115 services in 2024, and Dr. Ryan accepts Medicare assignment.
How many Medicare patients does Dr. David Nathaniel Arthur Ryan see?
CMS counts 30 Medicare patients who saw Dr. Ryan in 2024, with an average age of 74.
Is Dr. David Nathaniel Arthur Ryan board certified?
Yes. Dr. Ryan is board certified in 2008 - 2019 by the AL State License.
What services does Dr. David Nathaniel Arthur Ryan bill to Medicare?
In 2024, Dr. Ryan's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and medicare service (G0439).
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Where did Dr. David Nathaniel Arthur Ryan go to medical school?
Dr. Ryan graduated from Des Moines University in 2001.
What drugs does Dr. David Nathaniel Arthur Ryan prescribe most?
In 2024 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Rosuvastatin Calcium.
Has Dr. David Nathaniel Arthur Ryan received payments from drug or device companies?
CMS Open Payments shows $2,868 in general payments to Dr. Ryan from 28 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. David Nathaniel Arthur Ryan been practicing?
Dr. Ryan graduated from medical school in 2001, 25 years ago.
What insurance does Dr. David Nathaniel Arthur Ryan accept?
Dr. Ryan is in network with 18 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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