NPPES file of Aug 9, 2026

Daniel Aaron Ostler, D.O.

Anatomic Pathology & Clinical Pathology Physician · Naples, FL

Daniel Aaron Ostler, D.O. is an anatomic pathology & clinical pathology physician with a practice address in Naples, Florida, and NPI 1376784421, issued on Mar 19, 2009. Check the license (Florida OS13393, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1376784421
Name
Daniel Aaron Ostler
Credential
D.O.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License numbers
OS13393 FL
M6814 TX
Self-reported in NPPES; status is on the state search
Practice location
4351 Tamiami Trl N, Naples, FL 34103
Phone
(239) 263-1777
Enumerated
Mar 19, 2009
Record last updated
Jan 10, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(239) 263-6983
Medicare enrollment
Enrolled (PECOS I20151027000539); accepts Medicare assignment
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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Also registered at 4351 Tamiami Trl N

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

  1. Gregory Beaulieu, M.D.Anatomic Pathology & Clinical Pathology Physician1225264096
  2. Ashok Koul, MDAnatomic Pathology & Clinical Pathology Physician1982678041
  3. Charles Kovach, M.D.Anatomic Pathology & Clinical Pathology Physician1508009275
  4. Justin Richey, M.D.Dermatopathology (Pathology) Physician1639439086

Verify Daniel Aaron Ostler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license OS13393    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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Bills Medicare through 2 group practices

  1. Family Foot And Leg Center PANaples, FL
  2. Naples Pathology Associates PANaples, FL

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

Anatomic Pathology & Clinical Pathology Physician providers in Florida

There are 966 anatomic pathology & clinical pathology physician records in Florida.

All 966 in Florida → Every provider in Naples →

Other anatomic pathology & clinical pathology physician records in Florida

  1. Charles Abbott, M.D.Fort Lauderdale, FL1730120049
  2. Yousif Abdelmoneim, MDJacksonville, FL1518760305
  3. Mitra Abdollahi Neisani, MDJacksonville, FL1720882855
  4. Amid Abdullah, M.D.Tampa, FL1306114293
  5. Ahmed Abdulrahim, MBBSTampa, FL1629741475
  6. Michael Abels, M.D.Hialeah, FL1982644068
  7. David Abis, MDWest Palm Beach, FL1568443984
  8. Neil Abrahams, MDHollywood, FL1598720138
  9. Mohammad Abuel-Haija, M.D.Fort Myers, FL1518121888
  10. Amr Abulaban, M.D.Miami, FL1396329173

Common questions

What is Daniel Aaron Ostler, D.O.'s NPI number?

Daniel Aaron Ostler, D.O.'s National Provider Identifier (NPI) is 1376784421, issued on Mar 19, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Aaron Ostler, D.O. located?

The NPPES record lists a practice address at 4351 Tamiami Trl N, Naples, FL, 34103. Phone: (239) 263-1777. Providers update this record themselves, so call before visiting.

How can I verify Daniel Aaron Ostler, D.O.'s license?

NPPES lists Florida license number OS13393, 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.

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.