NPPES file of Aug 9, 2026

Charles R. Warren, D.O.

Family Medicine Physician · Fleming Island, FL

Charles R. Warren, D.O. is a family medicine physician with a practice address in Fleming Island, Florida, and NPI 1154389112, issued on May 1, 2006. Check the license (Florida OS7329, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154389112
Name
Charles R. Warren
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
OS7329 FL
Self-reported in NPPES; status is on the state search
Practice location
4565 US Highway 17 Ste 106, Fleming Island, FL 32003
Phone
(904) 269-4559
Enumerated
May 1, 2006
Record last updated
Jan 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(904) 269-4597
Medicare enrollment
Enrolled (PECOS I20050714000322); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family medicine physician records → All 9,399 in Florida → Look up another NPI →

Also registered at 4565 US Highway 17 Ste 106

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ali Afshar, M.D.Family Medicine Physician1083901177
  2. Stephanie CollinsPhysician Assistant1487402616
  3. Stephania DejnoFamily Nurse Practitioner1639636194
  4. Mohammed Mendhi, MDFamily Medicine Physician1487621736
  5. Tracy Pritchard, APRNFamily Nurse Practitioner1881430437
  6. Christopher Rossilli, PSYDClinical Neuropsychologist1124313879

Verify Charles R. Warren in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license OS7329    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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20% more Medicare Part D claims than the average family medicine physician in 2024

4,242 Medicare Part D claims for 587 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 127 claims were for opioids.

  1. Charles Warren4,242
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium388 claims
  2. Amlodipine Besylate198 claims
  3. Lisinopril159 claims
  4. Omeprazole146 claims
  5. Levothyroxine Sodium144 claims
  6. Gabapentin122 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $170.91

7 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Charles Warren$170.91
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Family Care Partners OF Northeast Florida LLCJacksonville, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Charles R. Warren among 9,399 family medicine physician records in Florida

Charles R. Warren, D.O. is one of 9,399 family medicine physician records with a practice address in Florida. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 55% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1994 · median 2004 among the 5,504 with a school on file
  • Record last updated2018 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 family medicine physician records list a practice address in Fleming Island

They are 21 of the 571 NPPES records with a practice address in Fleming Island, and 9,399 family medicine physician records in Florida.

All 9,399 in Florida → Every provider in Fleming Island → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Angela Busch-Doble, D.O.Fleming Island, FL 320031962494880
  2. Stephen Gill, M.D.Fleming Island, FL 320031871521906
  3. Gene Harris, D.O.Fleming Island, FL 320031912926700
  4. Deborah Harter, MDOrange Park, FL 320031609810670
  5. Charles House, M.D.Orange Park, FL 320031194854539
  6. Peter Jansen, MDFleming Island, FL 320031689634172
  7. Mohammed Mendhi, MDFleming Island, FL 320031487621736
  8. Eugenia Ngo, MDFleming Island, FL 320031356454581

Common questions

What is Charles R. Warren, D.O.'s NPI number?

Charles R. Warren, D.O.'s National Provider Identifier (NPI) is 1154389112, issued on May 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles R. Warren, D.O. located?

The NPPES record lists a practice address at 4565 US Highway 17 Ste 106, Fleming Island, FL, 32003. Phone: (904) 269-4559. Providers update this record themselves, so call before visiting.

How can I verify Charles R. Warren, D.O.'s license?

NPPES lists Florida license number OS7329, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Charles R. Warren, D.O. prescribe under Medicare Part D?

In 2024, Charles R. Warren, D.O. had 4,242 Medicare Part D claims for 587 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.