Arch Diagnostics, LLC
NPI 1447870308 · Neurological Surgery Physician · Clayton, MO
Arch Diagnostics, LLC is a Neurological Surgery Physician organization in Clayton, MO (NPI 1447870308).
Provider details
- NPI number
- 1447870308
- Entity type
- Organization
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Joseph Yazdi, Physician(314) 973-2955
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
6 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
- 2020-04-21
- Last updated
- 2020-04-21
- Certified
- 2020-04-21
Frequently asked questions
- What is Arch Diagnostics, LLC's NPI number?
- Arch Diagnostics, LLC's National Provider Identifier (NPI) is 1447870308, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Arch Diagnostics, LLC?
- Arch Diagnostics, LLC is classified in the NPPES registry as Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Arch Diagnostics, LLC located?
- Arch Diagnostics, LLC's practice location on file with NPPES is 7721 Clayton Rd, Clayton, MO 63117-1301.
- What is Arch Diagnostics, LLC's phone number?
- The practice phone number listed in the NPPES registry for Arch Diagnostics, LLC is (314) 973-2955.
- Who is the authorized official for Arch Diagnostics, LLC?
- The authorized official listed on Arch Diagnostics, LLC's NPPES record is Joseph Yazdi, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Arch Diagnostics, LLC's NPI active?
- Yes — Arch Diagnostics, LLC's NPI (1447870308) is active in the NPPES registry as of the last update on 2020-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.