Individual provider

Patrick Fullerton, D.O.

Pain Medicine Physician Emergency Medicine Physician Family Medicine Physician Medicare enrolled

Patrick Fullerton, D.O. is a Pain Medicine Physician in Mount Dora, FL, registered under NPI 1811039555. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 6909 OLD HIGHWAY 441 S STE 222, Mount Dora, FL 32757. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

6909 OLD HIGHWAY 441 S STE 222, Mount Dora, FL 32757 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
OS8087 FL Pain Medicine Physician primary
OS8087 FL Emergency Medicine Physician
OS8087 FL Family Medicine Physician

This provider holds licence OS8087 issued in FL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Family Practice
PAC ID
2668371857

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Florida I20041231000020 Practitioner - Family Practice
Texas I20170920003815 Practitioner - Emergency Medicine

Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. There are 2 separate enrolment records across 2 states (FL, TX). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Pain Medicine covers

Pain Medicine is a primary medical specialty based on a distinct body of knowledge and a well-defined scope of clinical practice that is founded on science, research and education. It is concerned with the study of pain, the prevention of pain, and the evaluation, treatment, and rehabilitation of persons in pain. A comprehensive evaluation incorporates the physical, psychological, cognitive and socio-cultural contributions to pain. The treatment protocol may include pharmacological, invasive, behavioral, cognitive, rehabilitative and complementary strategies provided in a concurrent focused and patient specific manner. The pain medicine physician often serves the patient as a frontline physician regarding their pain, but also may serve as a consultant to other physicians, direct an interdisciplinary/multidisciplinary treatment team, conduct research, or advocate for the patient's pain care with public and private agencies. The Pain Medicine physician may work in variety of settings including office, clinic, hospital, university, or governmental/public agencies. NUCC Health Care Provider Taxonomy, code 208VP0000X
Allopathic & Osteopathic Physicians Pain Medicine Pain Medicine

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
208VP0000X Pain Medicine Physician Pain Medicine OS8087 FL primary
207P00000X Emergency Medicine Physician OS8087 FL
207Q00000X Family Medicine Physician OS8087 FL

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1811039555 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateFeb 12, 2007
Last updatedAug 12, 2025
StatusActive
Sole proprietorNo
CredentialD.O.
Practice address 6909 OLD HIGHWAY 441 S STE 222
Mount Dora, FL 32757
(352) 441-9803
Other identifiers 015379100 · Medicaid (FL)
OS8087 · Other (FL)
This record was updated on Aug 12, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1811039555 passes the NPI check digit test The final digit 5 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 8 1 1 0 3 9 5 5
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 8 2 1 0 3 9 5 1

Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1811039555?
NPI 1811039555 is the National Provider Identifier assigned to Patrick Fullerton, D.O. in Mount Dora, FL. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Pain Medicine cover?
Pain Medicine is a primary medical specialty based on a distinct body of knowledge and a well-defined scope of clinical practice that is founded on science, research and education. It is concerned with the study of pain, the prevention of pain, and the evaluation, treatment, and rehabilitation of persons in pain. A…
How do I contact Patrick Fullerton, D.O.?
The phone number on file with NPPES is (352) 441-9803, last updated Aug 12, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Patrick Fullerton, D.O. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1811039555 a valid number?
Yes. 1811039555 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.