REX HARRIS MD
NPI 1861804627
Family Medicine in Waco, TX

Q: What is Rex Harris's NPI number?

The NPI number for Rex Harris is 1861804627. It was assigned to this individual provider in the NPPES registry on May 28, 2014.

Q: What is Rex Harris'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 Rex Harris was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 May 28, 2014PECOS EnrolledAccepts Medicare Assignment

1600 PROVIDENCE DR, WACO, TX 76707(254) 313-4200(254) 313-4326 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2026, Jul 10, 2026 (2 updates tracked since 2026).

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About Rex Harris Md NPPES

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

REX HARRIS MD (NPI 1861804627) is an individual family medicine provider in Waco, Texas, licensed in Texas (BP10051104) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS, is affiliated with Northeastern Health System, and maintains a secondary practice location in West Fork.

NPPES Registry Identity

NPI1861804627

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameREX HARRISCredential: MD

Location Address1600 PROVIDENCE DRWaco, TX 76707-2261

Mailing Address1600 Providence DrWaco, TX 76707-2261 · (254) 313-4200 · Fax (254) 313-4326

Phone(254) 313-4200

Fax(254) 313-4326

Sole ProprietorNo

Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 2014

Enumeration DateMay 28, 2014

Last NPPES UpdateJuly 21, 20262 updates tracked since enumeration

NPPES CertifiedJuly 21, 2026

✔ NPI 1861804627 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in TX · BP10051104✔ Licensed in AR · E-10437

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.

1600 PROVIDENCE DR, Waco, TX 76707

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Secondary Practice Location 1

Location 1451 Phillips StWest Fork, AR 72774-2813 · Phone (479) 294-6085

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan 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

Rex Harris 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 ID9032427562

PECOS Enrollment IDI20170630000616, I20180924001855

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 Rex Harris reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Access Medical Clinic Arkansas, LLC

229 mi

Rural Health

122 SOUTHERN DR
Ashdown, AR 71822

Reassigned Medicare billing, Arkansas enrollment
150 clinicians in this Medicare group

NPI 1275224263 (870) 600-4050

St Francis House Nwa, Inc

346 mi

Federally Qualified Health Center (FQHC)

245 SCHOOL AVE STE A
West Fork, AR 72774

Reassigned Medicare billing, Arkansas and Oklahoma enrollments
Also billed through NPI 1336902311 (Oklahoma)
55 clinicians in this Medicare group

NPI 1336986785 (479) 751-7417

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 20

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.

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

269 services197 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

236 services180 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

153 services138 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

122 services80 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.

94 services83 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.

85 services71 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

77 services51 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

73 services69 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

53 services46 patients

Urine microalbumin (protein) analysis 82044

Urine microalbumin analysis is a test that measures the amount of a protein called albumin in your urine. This protein is usually present in very small amounts, but higher levels can indicate kidney issues. The test is non-invasive and involves a simple urine sample.

47 services38 patients

Thyroid hormone, t3 measurement, total 84480

The T3 Total Test measures the amount of thyroid hormone T3 in your blood. This hormone, produced by the thyroid gland, is crucial for body's metabolism and energy production. Abnormal levels may indicate a thyroid disorder.

40 services35 patients

Thyroxine (thyroid chemical), free 84439

The Thyroxine (thyroid chemical), free test is a blood test that measures the level of free T4 in your body. T4 is a hormone produced by your thyroid gland and is essential for growth and metabolism. If your T4 levels are too high or too low, it could indicate a thyroid disorder.

39 services34 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

21 services17 patients

Prostate cancer screening; prostate specific antigen test (psa) G0103

Prostate cancer screening involves a simple blood test known as the Prostate Specific Antigen (PSA) test. This test measures the level of PSA in your blood. Higher than normal levels can be an early indication of prostate issues, including cancer. It's a key tool in early detection.

21 services21 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.

19 services19 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

18 services15 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.

18 services18 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.

14 services12 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

13 services13 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

13 services13 patients

Hospital Affiliations CMS Care Compare

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

Northeastern Health System

Acute Care Hospitals · Tahlequah, OK

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number370089

Location1400 East Downing StreetTahlequah, OK 74465 · Cherokee County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 76707 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

$84.92 typical visit price

range $54.84 – $166.88

Typical copayment $21.23 (range $13.71 – $41.72)

Most-billed visit code 99203

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

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 5

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

4 suppliers13 claims31 services$5.77 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

3 suppliers12 claims12 services$53.29 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

5 suppliers14 claims84 services$2.12 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

1 supplier12 claims12 services$36.24 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

1 supplier12 claims12 services$22.67 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.

ALLISON L HULME MD

Family Medicine