Gilbert Irwin, M.D.P.C.
NPI 1588649990 · Internal Medicine Physician · Manassas, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gilbert Irwin, M.D.P.C. is a Internal Medicine Physician provider in Manassas, VA (NPI 1588649990).
Provider details
- NPI number
- 1588649990
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.P.C.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101023931 (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
20 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
- 2005-12-08
- Last updated
- 2016-12-08
Frequently asked questions
- What is Gilbert Irwin's NPI number?
- Gilbert Irwin's National Provider Identifier (NPI) is 1588649990, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gilbert Irwin's specialty?
- Gilbert Irwin is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gilbert Irwin located?
- Gilbert Irwin's practice location on file with NPPES is 9590 Surveyor Ct, Manassas, VA 20110-4406.
- What is Gilbert Irwin's phone number?
- The practice phone number listed in the NPPES registry for Gilbert Irwin is (703) 361-5116.
- Does Gilbert Irwin accept Medicare?
- Gilbert Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gilbert Irwin's NPI active?
- Yes — Gilbert Irwin's NPI (1588649990) is active in the NPPES registry as of the last update on 2016-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.