Katharine Wallen, M.D.
NPI 1881811594 · Pediatrics Physician · Falls Church, VA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Wallen, M.D. is a Pediatrics Physician provider in Falls Church, VA (NPI 1881811594).
Provider details
- NPI number
- 1881811594
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0101248550 (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
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)
- 9430 Forestwood LnSuite 100Manassas, VA 20110-4753Phone: (703) 365-0227
Registry dates
- Enumerated
- 2007-04-20
- Last updated
- 2021-02-25
- Certified
- 2021-02-25
Frequently asked questions
- What is Katharine Wallen's NPI number?
- Katharine Wallen's National Provider Identifier (NPI) is 1881811594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Wallen's specialty?
- Katharine Wallen is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Katharine Wallen located?
- Katharine Wallen's practice location on file with NPPES is 3300 Gallows Rd, Falls Church, VA 22042-3307.
- What is Katharine Wallen's phone number?
- The practice phone number listed in the NPPES registry for Katharine Wallen is (703) 776-4001.
- Does Katharine Wallen accept Medicare?
- Katharine Wallen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Wallen's NPI active?
- Yes — Katharine Wallen's NPI (1881811594) is active in the NPPES registry as of the last update on 2021-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.