Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

STUART LAWRENCE HORWITZ MD
NPI 1134180128
Internal Medicine - Gastroenterology in Washington, DC

Q: What is Stuart Horwitz's NPI number?

The NPI number for Stuart Horwitz is 1134180128. It was assigned to this individual provider in the NPPES registry on March 29, 2006.

Q: What is Stuart Horwitz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Stuart Horwitz was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days 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 29, 2006PECOS Enrolled

1160 VARNUM ST NE, 311, WASHINGTON, DC 20017(202) 832-2880(202) 832-0456 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Stuart Lawrence Horwitz Md NPPES

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

STUART LAWRENCE HORWITZ MD (NPI 1134180128) is an individual gastroenterology provider in Washington, District Of Columbia, licensed in District Of Columbia (MD11987) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1134180128

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameSTUART LAWRENCE HORWITZCredential: MD

Location Address1160 VARNUM ST NE, 311Washington, DC 20017-2107

Mailing Address1160 Varnum St Ne, 311Washington, DC 20017-2107 · (202) 832-2880 · Fax (202) 832-0456

Phone(202) 832-2880

Fax(202) 832-0456

Sole ProprietorNo

Enumeration DateMarch 29, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1134180128 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in DC · MD11987

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

1160 VARNUM ST NE, Washington, DC 20017

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stuart Lawrence Horwitz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Areas of Expertise CMS Part B claims 9

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.

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.

1,039 services114 patients

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

791 services92 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

73 services68 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

69 services58 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 99307

A follow-up nursing facility visit per day typically lasts about 10 minutes. This service involves a healthcare professional checking on your health status, answering any questions you may have, and monitoring your progress. This routine check ensures your recovery is on track and any concerns are addressed promptly.

59 services33 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes 99307

58 services32 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20017 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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 16

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

Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357

DME-Orthotic Devices · category DF000N

1 supplier15 claims18 services$8.91 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each A4407

DME-Orthotic Devices · category DF010N

1 supplier20 claims400 services$8.48 avg. paid by Medicare

Ostomy pouch, drainable, high output, for use on a barrier with flange (2 piece system), without filter, each A4412

DME-Orthotic Devices · category DF010N

1 supplier14 claims280 services$2.63 avg. paid by Medicare

Tape, non-waterproof, per 18 square inches A4450

DME-Medical/Surgical Supplies · category DA000N

1 supplier12 claims528 services$0.09 avg. paid by Medicare

For diabetics only, fitting (including follow-up), custom preparation and supply of off-the-shelf depth-inlay shoe manufactured to accommodate multi-density insert(s), per shoe A5500

DME-Orthotic Devices · category DF000N

1 supplier26 claims52 services$61.02 avg. paid by Medicare

For diabetics only, multiple density insert, direct formed, molded to foot after external heat source of 230 degrees fahrenheit or higher, total contact with patient's foot, including arch, base layer minimum of 1/4 inch material of shore a 35 durometer or 3/16 inch material of shore a 40 durometer (or higher), prefabricated, each A5512

DME-Orthotic Devices · category DF000N

1 supplier26 claims156 services$24.89 avg. paid by Medicare

Collagen based wound filler, dry form, sterile, per gram of collagen A6010