Lacy Irwin, M.D.
NPI 1558781211 · Pediatrics Physician · Spokane, WA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lacy Irwin, M.D. is a Pediatrics Physician provider in Spokane, WA (NPI 1558781211).
Provider details
- NPI number
- 1558781211
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD60746980 (WA)
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
12 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
- 2014-04-22
- Last updated
- 2018-05-16
Frequently asked questions
- What is Lacy Irwin's NPI number?
- Lacy Irwin's National Provider Identifier (NPI) is 1558781211, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lacy Irwin's specialty?
- Lacy Irwin is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Lacy Irwin located?
- Lacy Irwin's practice location on file with NPPES is 101 W 8th Ave, Spokane, WA 99204.
- What is Lacy Irwin's phone number?
- The practice phone number listed in the NPPES registry for Lacy Irwin is (509) 474-2847.
- Does Lacy Irwin accept Medicare?
- Lacy Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lacy Irwin's NPI active?
- Yes — Lacy Irwin's NPI (1558781211) is active in the NPPES registry as of the last update on 2018-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.