Julia Iwamasa, MD
NPI 1114168820 · Anesthesiology Physician · New York, NY
Julia Iwamasa, MD is a Anesthesiology Physician provider in New York, NY (NPI 1114168820).
Provider details
- NPI number
- 1114168820
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 25MA08545800 (NJ)
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
17 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
- 2009-03-11
- Last updated
- 2016-12-11
Frequently asked questions
- What is Julia Iwamasa's NPI number?
- Julia Iwamasa's National Provider Identifier (NPI) is 1114168820, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Iwamasa's specialty?
- Julia Iwamasa is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Julia Iwamasa located?
- Julia Iwamasa's practice location on file with NPPES is 752 W End Ave, New York, NY 10025-6230.
- What is Julia Iwamasa's phone number?
- The practice phone number listed in the NPPES registry for Julia Iwamasa is (212) 729-9353.
- Is Julia Iwamasa's NPI active?
- Yes — Julia Iwamasa's NPI (1114168820) is active in the NPPES registry as of the last update on 2016-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.