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DR. STEPHEN J. HORWITZ M.D.
NPI 1093721631
Obstetrics & Gynecology - Gynecology in Bethesda, MD

Active since August 01, 2006PECOS Enrolled
7504 ROYAL DOMINION DR, BETHESDA, MD 20817(301) 469-6612 Get Directions Write a Review

NPPES record last updated: June 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Stephen J. Horwitz M.d. NPPES

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

DR. STEPHEN J. HORWITZ M.D. (NPI 1093721631) is an individual gynecology provider in Bethesda, Maryland, licensed in District Of Columbia (MD 10603) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093721631
Entity TypeIndividualMale
Primary Taxonomy207VG0400X
Provider Legal NameDR. STEPHEN J. HORWITZCredential: M.D.
Location Address7504 ROYAL DOMINION DRBethesda, MD 20817-4658
Mailing Address7504 Royal Dominion DrBethesda, MD 20817-4658 · (301) 469-6612
Phone(301) 469-6612
Sole ProprietorYes
Enumeration DateAugust 1, 2006
Last NPPES UpdateJune 21, 2026
NPPES CertifiedAugust 27, 2020
✔ NPI 1093721631 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207VG0400X
License✔ Licensed in DC · MD 10603
Definition
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee
7504 ROYAL DOMINION DR, Bethesda, MD 20817
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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)

Dr. Stephen J. Horwitz M.d. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20817 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
$80.66 typical visit price
range $21.40 – $158.88
Typical copayment $20.16 (range $5.35 – $39.72)
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.

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 Stephen Horwitz's NPI number?

The NPI number for Stephen Horwitz is 1093721631. It was assigned to this individual provider in the NPPES registry on August 1, 2006.

Where is Stephen Horwitz located?

Stephen Horwitz practices at 7504 Royal Dominion Dr, Bethesda, MD 20817. The listed phone number is (301) 469-6612.

What is Stephen Horwitz's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecology, with taxonomy code 207VG0400X.

Is Stephen Horwitz enrolled in Medicare?

Yes. Stephen Horwitz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Stephen Horwitz was last updated on June 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 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.