GREGORY JAMES HORWITZ M.D.
NPI 1689798613
Urology in North Kansas City, MO

Q: What is Gregory Horwitz's NPI number?

The NPI number for Gregory Horwitz is 1689798613. It was assigned to this individual provider in the NPPES registry on March 16, 2007.

Q: What is Gregory Horwitz's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Horwitz was last updated on April 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 March 16, 2007PECOS EnrolledAccepts Medicare Assignment

1950 DIAMOND PKWY STE 200, NORTH KANSAS CITY, MO 64116(816) 842-6717 Get Directions Write a Review

NPPES record last updated: April 12, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 12, 2021, Jan 18, 2021 (2 updates tracked since 2021).

On this page

About Gregory James Horwitz M.d. NPPES

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

GREGORY JAMES HORWITZ M.D. (NPI 1689798613) is an individual urology provider in North Kansas City, Missouri, licensed in Missouri (2008004272) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Research Medical Center, and is a graduate of University Of Wisconsin School Of Medicine (2003).

NPPES Registry Identity

NPI1689798613

Entity TypeIndividualMale

Primary Taxonomy208800000X

Provider Legal NameGREGORY JAMES HORWITZCredential: M.D.

Location Address1950 DIAMOND PKWY STE 200North Kansas City, MO 64116-4321

Mailing Address1950 Diamond Pkwy Ste 200North Kansas City, MO 64116-4321 · (816) 842-8717

Phone(816) 842-6717

Sole ProprietorNo

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2003

Enumeration DateMarch 16, 2007

Last NPPES UpdateApril 12, 20212 updates tracked since enumeration

NPPES CertifiedApril 12, 2021

✔ NPI 1689798613 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians

Taxonomy Code208800000X

Licenses✔ Licensed in MO · 2008004272✔ Licensed in KS · 33000

Definition

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

1950 DIAMOND PKWY STE 200, North Kansas City, MO 64116

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Other Identifiers 1

Other41567017MO · Bcbs Kc

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Oscar Insurance Company 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

Gregory James Horwitz M.d. 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 ID446311013

PECOS Enrollment IDI20081202000406, I20090209000254

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

Kansas City Urology Care, P.A.

14 mi

Urology

10701 NALL AVE, SUITE 100
Overland Park, KS 66211

Reassigned Medicare billing, Kansas and Missouri enrollments
Medicare enrollment name: Kansas City Urology Care PA
64 clinicians in this Medicare group

NPI 1528024676 (913) 341-7985

Ray County Memorial Hospital

34 mi

Critical Access

904 WOLLARD BLVD
Richmond, MO 64085

Reassigned Medicare billing, Missouri enrollment
81 clinicians in this Medicare group

NPI 1245220052 (816) 470-5432

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 30

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, propofol, 10 mg J2704

Propofol is a medication given via injection to help you relax or sleep during surgery or other medical procedures. The 10 mg dosage refers to the amount of medication you'll receive. It's administered by a healthcare professional and monitored closely for safety.

756 services25 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.

605 services373 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

508 services346 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

356 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.

297 services219 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.

243 services218 patients

Detection test by nucleic acid for organism, amplified probe technique 87798

A nucleic acid detection test is a procedure to identify specific organisms in your body. This test uses an amplified probe technique, which magnifies the genetic material of the organism, making it easier to detect. It's a precise way to diagnose infections.

149 services19 patients

Injection, ceftriaxone sodium, per 250 mg J0696

Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.

132 services33 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

118 services59 patients

Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings 51784

This procedure involves the use of non-invasive devices to record the electrical activity of muscles at specific body openings. It's helpful in understanding muscle function and can assist in diagnosing certain conditions.

116 services116 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

103 services103 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

79 services62 patients

Complex measurement of pressure of urine flow in bladder with voiding pressure studies 51728

This procedure measures the pressure in your bladder as it fills and empties. It helps to understand how well your bladder is functioning. Sensors record pressure levels during these processes, providing valuable data for your doctor.

77 services77 patients

Simple change of bladder tube 51705

A simple change of bladder tube involves replacing your current urinary drainage tube with a new one. This is done to maintain hygiene and prevent infections. It's a straightforward process, usually causing minimal discomfort, and helps ensure your body can properly dispose of waste fluids.

67 services23 patients

Insertion of device into abdomen with pressure and urine flow rate study 51797

This procedure involves placing a small device into your abdomen to monitor pressure and urine flow rates. It helps in understanding how well your body is processing and eliminating liquid waste. It's a safe procedure, typically performed under local anesthesia.

58 services58 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

58 services58 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.

49 services44 patients

Insertion of stent in ureter using an endoscope 52332

This procedure involves placing a small, flexible tube (stent) in your body's drainage system to help urine flow from the kidneys to the bladder. An endoscope, a thin tube with a light and camera, is used for precise placement.

35 services29 patients

Ultrasound scan of pelvic region through rectum 76872

An ultrasound scan of the pelvic region through the rectum is a medical procedure where a small, smooth device is gently inserted into the rectum. This device uses sound waves to create images of the internal structures in the lower abdomen, aiding in diagnosis and treatment planning.

34 services34 patients

Biopsy of prostate gland 55700

A biopsy of the prostate gland is a procedure where a small sample of tissue is taken from your body's internal gland, located near the bladder, for testing. This helps in diagnosing potential health issues. It's usually done with a fine needle and imaging technology for accuracy.

33 services33 patients

Injection, ciprofloxacin for intravenous infusion, 200 mg J0744

Ciprofloxacin is an antibiotic used to treat a variety of bacterial infections. The 200 mg dose is given through an injection into your vein (intravenous infusion), usually over 60 minutes. This helps your body fight off the infection.

28 services14 patients

Psa (prostate specific antigen) measurement, total 84153

PSA measurement is a simple blood test that checks for a specific protein produced by your body. High levels could indicate a health issue that needs further investigation. It's often used to monitor general wellness and is part of routine health screening.

25 services24 patients

Simple insertion of temporary bladder tube 51702

This procedure involves placing a temporary tube into your bladder to help with urine flow. It's done when the body can't naturally remove urine. The tube is inserted through a small opening and allows urine to drain into a bag. It's usually a short-term solution.

22 services11 patients

Simple bladder irrigation and/or instillation 51700

Bladder irrigation and/or instillation is a process where a sterile solution is introduced into the bladder to cleanse it or deliver medication. This procedure helps manage certain bladder conditions, ensuring optimal bladder health.

20 services17 patients

Imaging of urinary tract following injection of a contrast agent 74420

This procedure involves injecting a contrast agent into your body to help highlight the urinary tract during imaging. The contrast agent makes your urinary tract more visible on the images, providing detailed information about its structure and function. This can help in diagnosing any potential issues.

20 services20 patients

Detection test by nucleic acid for vancomycin resistance strep (vre), amplified probe technique 87500

The detection test by nucleic acid for vancomycin-resistant strep (VRE) is a laboratory procedure. It uses an amplified probe technique to identify specific genetic material in bacteria. This helps determine if the bacteria are resistant to the antibiotic vancomycin.

19 services19 patients

Detection test by nucleic acid for staphylococcus aureus, methicillin resistant (mrsa bacteria), amplified probe technique 87641

A detection test by nucleic acid for MRSA bacteria uses an amplified probe technique. It's a lab procedure that identifies the presence of MRSA, a type of bacteria resistant to many antibiotics. This test helps in deciding the best treatment.

19 services19 patients

Complex measurement of pressure of urine flow in bladder with urethra pressure studies 51727

This procedure measures the pressure in your bladder as it fills and empties. It helps to assess how well your bladder and urinary passage work together. It involves the use of small tubes and sensors, ensuring a safe and thorough evaluation.

18 services18 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.

16 services16 patients

Crushing of stone of ureter with insertion of stent using an endoscope 52356

This procedure involves using a thin, flexible tube (endoscope) to locate and break down kidney stones in the ureter. After this, a small tube (stent) is inserted to help maintain an open pathway for urine to flow.

13 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Research Medical Center

Acute Care Hospitals · Kansas City, MO

2/5 CMS rating

OwnershipProprietary

CMS Certification Number260027

Location2316 E Meyer BlvdKansas City, MO 64132 · Jackson County

Emergency services Birthing friendly

Saint Lukes North Hospital

Acute Care Hospitals · Kansas City, MO

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260062

Location5830 N W Barry RoadKansas City, MO 64154 · Platte County

Emergency services Birthing friendly

Centerpoint Medical Center

Acute Care Hospitals · Independence, MO

3/5 CMS rating

OwnershipProprietary

CMS Certification Number260095

Location19600 East 39th StreetIndependence, MO 64057 · Jackson County

Emergency services Birthing friendly

North Kansas City Hospital

Acute Care Hospitals · North Kansas City, MO

4/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number260096

Location2800 Clay Edwards DriveNorth Kansas City, MO 64116 · Clay County

Emergency services Birthing friendly

Ray County Memorial Hospital

Critical Access Hospitals · Richmond, MO

OwnershipGovernment - Local

CMS Certification Number261327

Location904 Wollard BoulevardRichmond, MO 64085 · Ray County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 64116 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

$127.61 typical visit price

range $55.29 – $168.52

Typical copayment $31.90 (range $13.82 – $42.13)

Most-billed visit code 99204

Established Patient

$69.10 typical visit price

range $17.60 – $137.20

Typical copayment $17.27 (range $4.40 – $34.30)

Most-billed visit code 99213

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 3

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

Lubricant, individual sterile packet, each A4332

DME-Medical/Surgical Supplies · category DA000N

1 supplier49 claims4,470 services$0.10 avg. paid by Medicare

Intermittent urinary catheter; straight tip, with or without coating (teflon, silicone, silicone elastomer, or hydrophilic, etc.), each A4351

DME-Orthotic Devices · category DF008N

3 suppliers97 claims10,800 services$1.65 avg. paid by Medicare

Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352

DME-Orthotic Devices · category DF008N

1 supplier21 claims2,100 services$6.17 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 11

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

ASHLYN SMITH

Nurse Practitioner (Family)

1950 DIAMOND PKWY STE 200
NORTH KANSAS CITY, MO 64116

Clay County (816) 842-6717

MRS. CAITLIN CLARE SHIPP PA

Physician Assistant

1950 DIAMOND PKWY STE 200
KANSAS CITY, MO 64116

Clay County (816) 842-6717

KEEGAN ZUK M.D.

Urology

1950 DIAMOND PKWY STE 200
NORTH KANSAS CITY, MO 64116

Clay County (816) 842-6717

ALISHA JONES PA-C

Physician Assistant

1950 DIAMOND PKWY STE 200
NORTH KANSAS CITY, MO 64116

Clay County (816) 842-6717

ABBY ROSE SPEXARTH PA

Physician Assistant

1950 DIAMOND PKWY STE 200
NORTH KANSAS CITY, MO 64116

Clay County (816) 842-6717

KANSAS CITY UROLOGY CARE, P.A.

Non-Pharmacy Dispensing Site

1950 DIAMOND PKWY STE 200
NORTH KANSAS CITY, MO 64116

Clay County (816) 842-6717

COURTNEY HINSON PA

Physician Assistant

1950 DIAMOND PKWY STE 200
NORTH KANSAS CITY, MO 64116

Clay County (816) 842-6717

DR. PATRICK PROBST M.D.

Urology

1950 DIAMOND PKWY STE 200
KANSAS CITY, MO 64116

Clay County (816) 842-6717

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 Gregory Horwitz's NPI number?

The NPI number for Gregory Horwitz is 1689798613. It was assigned to this individual provider in the NPPES registry on March 16, 2007.

Where is Gregory Horwitz located?

Gregory Horwitz practices at 1950 Diamond Pkwy Ste 200, North Kansas City, MO 64116. The listed phone number is (816) 842-6717.

What is Gregory Horwitz's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is Gregory Horwitz enrolled in Medicare?

Yes. Gregory Horwitz 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 Gregory Horwitz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Horwitz reassigns Medicare benefits to 2 organizations: Kansas City Urology Care, P.A. (Overland Park, KS) and Ray County Memorial Hospital (Richmond, MO). 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 Gregory Horwitz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Horwitz accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Oscar Insurance Company and UnitedHealthcare list Gregory Horwitz 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 Gregory Horwitz affiliated with any hospitals?

According to CMS data, Gregory Horwitz is affiliated with Research Medical Center, Saint Lukes North Hospital, Centerpoint Medical Center, North Kansas City Hospital and Ray County Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Horwitz was last updated on April 12, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.