Michael Horwath, MD
NPI 1861427932 · Endocrinology, Diabetes & Metabolism Physician · Alexandria, VA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Horwath, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Alexandria, VA (NPI 1861427932).
Provider details
- NPI number
- 1861427932
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 37920 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1800 Town Center Dr#216Reston, VA 20190-3238Phone: (703) 978-1196
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2021-09-21
- Certified
- 2021-09-21
Frequently asked questions
- What is Michael Horwath's NPI number?
- Michael Horwath's National Provider Identifier (NPI) is 1861427932, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Horwath's specialty?
- Michael Horwath is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Horwath located?
- Michael Horwath's practice location on file with NPPES is 6355 Walker Ln Ste 405, Alexandria, VA 22310-3238.
- What is Michael Horwath's phone number?
- The practice phone number listed in the NPPES registry for Michael Horwath is (703) 719-6715.
- Does Michael Horwath accept Medicare?
- Michael Horwath is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Horwath's NPI active?
- Yes — Michael Horwath's NPI (1861427932) is active in the NPPES registry as of the last update on 2021-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.