Michael Cassidy, MD
NPI 1588757371 · Adult Reconstructive Orthopaedic Surgery Physician · Annandale, VA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Cassidy, MD is a Adult Reconstructive Orthopaedic Surgery Physician provider in Annandale, VA (NPI 1588757371).
Provider details
- NPI number
- 1588757371
- Entity type
- Individual
- Primary specialty
- Adult Reconstructive Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101036477 (VA)
Specialties & taxonomies
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
1 documented practice location
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
Registry dates
- Enumerated
- 2006-10-02
- Last updated
- 2010-07-15
Frequently asked questions
- What is Michael Cassidy's NPI number?
- Michael Cassidy's National Provider Identifier (NPI) is 1588757371, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Cassidy's specialty?
- Michael Cassidy is listed in the NPPES registry with a primary specialty of Adult Reconstructive Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Cassidy located?
- Michael Cassidy's practice location on file with NPPES is 3301 Woodburn Rd #208, Annandale, VA 22003-1200.
- What is Michael Cassidy's phone number?
- The practice phone number listed in the NPPES registry for Michael Cassidy is (703) 560-9495.
- Does Michael Cassidy accept Medicare?
- Michael Cassidy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Cassidy's NPI active?
- Yes — Michael Cassidy's NPI (1588757371) is active in the NPPES registry as of the last update on 2010-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.