TRISTAN MONROE HARRISON MD
NPI 1891704581
Family Medicine in Winter Haven, FL

Q: What is Tristan Harrison's NPI number?

The NPI number for Tristan Harrison is 1891704581. It was assigned to this individual provider in the NPPES registry on August 5, 2006.

Q: What is Tristan Harrison's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Tristan Harrison was last updated on May 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 05, 2006PECOS EnrolledAccepts Medicare Assignment

635 1ST ST N, WINTER HAVEN, FL 33881(863) 294-0670(863) 298-3200 Get Directions Write a Review

NPPES record last updated: May 29, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Tristan Monroe Harrison Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TRISTAN MONROE HARRISON MD (NPI 1891704581) is an individual family medicine provider in Winter Haven, Florida, licensed in Florida (ME115560) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Winter Haven Hospital, and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (2004).

NPPES Registry Identity

NPI1891704581

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameTRISTAN MONROE HARRISONCredential: MD

Location Address635 1ST ST NWinter Haven, FL 33881-4129

Mailing Address2995 Drew StClearwater, FL 33759-3012 · (727) 315-7496

Phone(863) 294-0670

Fax(863) 298-3200

Sole ProprietorYes

Medical School CMSUniformed Services Uhs Fe Hebert School Of MedGraduated 2004

Enumeration DateAugust 5, 2006

Last NPPES UpdateMay 29, 2024

NPPES CertifiedMay 29, 2024

✔ NPI 1891704581 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in FL · ME115560✔ Licensed in VA · 0101239927

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

635 1ST ST N, Winter Haven, FL 33881

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter of Alabama, Florida Blue (BlueCross BlueShield FL) and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Tristan Monroe Harrison Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4082801816

PECOS Enrollment IDI20140602000897

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Tristan Harrison reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Gessler Clinic Professional Association

Same address

Internal Medicine

635 1ST ST N
Winter Haven, FL 33881

Reassigned Medicare billing, Florida enrollment
34 clinicians in this Medicare group

NPI 1154399533 (863) 294-0670

Baycare Medical Group, Inc.

61 mi

General Practice

2995 DREW ST FL 2
Clearwater, FL 33759

Reassigned Medicare billing, Florida enrollment
2,009 clinicians in this Medicare group

NPI 1043269871 (727) 281-9065

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 25

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

1,680 services20 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

1,161 services471 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

381 services381 patients

Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes G0446

This is a yearly, personal consultation focused on behaviors affecting heart health. It lasts 15 minutes and may cover topics like diet, exercise, and stress management. It's about learning healthy habits to protect your heart.

351 services351 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

345 services345 patients

Annual alcohol misuse screening, 5 to 15 minutes G0442

An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.

343 services343 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

334 services334 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

192 services185 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

190 services183 patients

Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg J3420

This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.

143 services25 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

94 services34 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

80 services80 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

78 services63 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

78 services78 patients

Transitional care management services for problem of high complexity 99496

Transitional care management services are designed to ensure a smooth transition from a hospital to home or another care setting for patients with complex health issues. These services include medication management, patient education, and coordination with healthcare providers.

53 services48 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

43 services38 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

38 services25 patients

Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a G0179

This procedure involves a doctor or approved practitioner reviewing your health status and re-certifying your need for Medicare-covered home health services. It includes communication with the home health agency and assessment of your health reports, even when you're not physically present.

20 services12 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

18 services13 patients

Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment G0402

An Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.

17 services17 patients

Administration of vaccine 90471

Administering a vaccine involves injecting a small, safe piece of a virus or bacteria into your body. This triggers your immune system to recognize and fight off the disease in the future. It's a vital tool in preventing serious illnesses and maintaining public health.

15 services13 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

15 services15 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

15 services15 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

13 services12 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Winter Haven Hospital

Acute Care Hospitals · Winter Haven, FL

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number100052

Location200 Ave F NEWinter Haven, FL 33881 · Polk County

Emergency services Birthing friendly

St Josephs Hospital

Acute Care Hospitals · Tampa, FL

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number100075

Location3001 W Martin Luther King Jr BlvdTampa, FL 33677 · Hillsborough County

Emergency services Birthing friendly

Lakeland Regional Medical Center

Acute Care Hospitals · Lakeland, FL

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number100157

Location1324 Lakeland Hills BlvdLakeland, FL 33805 · Polk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33881 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$87.62 typical visit price

range $56.00 – $171.84

Typical copayment $21.90 (range $14.00 – $42.96)

Most-billed visit code 99203

Established Patient

$99.16 typical visit price

range $17.57 – $139.16

Typical copayment $24.79 (range $4.39 – $34.79)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 19

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

17 suppliers74 claims174 services$6.26 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

12 suppliers33 claims40 services$1.05 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

4 suppliers36 claims36 services$32.29 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

3 suppliers17 claims17 services$73.04 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

3 suppliers18 claims51 services$29.49 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

6 suppliers36 claims213 services$16.34 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

2 suppliers13 claims75 services$9.47 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

7 suppliers55 claims55 services$45.95 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

7 suppliers40 claims40 services$14.59 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

6 suppliers27 claims27 services$9.85 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

7 suppliers64 claims384 services$1.67 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

5 suppliers14 claims14 services$5.12 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

6 suppliers34 claims34 services$9.36 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

3 suppliers22 claims22 services$41.49 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers16 claims16 services$13.94 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

2 suppliers43 claims43 services$29.51 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

3 suppliers28 claims28 services$64.61 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

1 supplier11 claims11 services$16.93 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

3 suppliers14 claims14 services$185.67 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. REBECCA NICOLE THOMAS M.D.

Family Medicine

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

DR. MARY R DE SENA M.D.

Family Medicine

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

HALDANE W PORTEOUS M.D

Internal Medicine (Nephrology)

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

GESSLER CLINIC PROFESSIONAL ASSOCIATION

Internal Medicine

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

PETER EMMANUEL JOACHIM APRN

Nurse Practitioner (Family)

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

CRISTINA MEJIA-MILLAN PH.D.

Psychologist

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

ALAN G GASNER MD

Internal Medicine

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

RONALD A FORD MD

Family Medicine

635 1ST ST N
WINTER HAVEN, FL 33881

Polk County (863) 294-0670

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Tristan Harrison's NPI number?

The NPI number for Tristan Harrison is 1891704581. It was assigned to this individual provider in the NPPES registry on August 5, 2006.

Where is Tristan Harrison located?

Tristan Harrison practices at 635 1st St N, Winter Haven, FL 33881. The listed phone number is (863) 294-0670.

What is Tristan Harrison's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Tristan Harrison enrolled in Medicare?

Yes. Tristan Harrison is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Tristan Harrison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tristan Harrison reassigns Medicare benefits to 2 organizations: Gessler Clinic Professional Association (Winter Haven, FL) and Baycare Medical Group, Inc. (Clearwater, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tristan Harrison's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tristan Harrison accept?

Health plans from Ambetter Health, Ambetter of Alabama, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Tristan Harrison as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Tristan Harrison affiliated with any hospitals?

According to CMS data, Tristan Harrison is affiliated with Winter Haven Hospital, St Josephs Hospital and Lakeland Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Tristan Harrison was last updated on May 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.