Arthur Hayashi, MD
NPI 1912069055 · Family Medicine Physician · Washington, DC
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Hayashi, MD is a Family Medicine Physician provider in Washington, DC (NPI 1912069055).
Provider details
- NPI number
- 1912069055
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD33159 (DC)
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
- 2006-12-14
- Last updated
- 2015-08-06
Frequently asked questions
- What is Arthur Hayashi's NPI number?
- Arthur Hayashi's National Provider Identifier (NPI) is 1912069055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Hayashi's specialty?
- Arthur Hayashi is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Hayashi located?
- Arthur Hayashi's practice location on file with NPPES is 1220 12th St Se, Washington, DC 20003-3722.
- What is Arthur Hayashi's phone number?
- The practice phone number listed in the NPPES registry for Arthur Hayashi is (202) 715-7900.
- Does Arthur Hayashi accept Medicare?
- Arthur Hayashi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Hayashi's NPI active?
- Yes — Arthur Hayashi's NPI (1912069055) is active in the NPPES registry as of the last update on 2015-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.