Twelfth One, LLC
NPI 1497528418 · Home Infusion Therapy Pharmacy · Chandler, AZ
Enrolled with Medicare as Dme Supplier - Pharmacy · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Twelfth One, LLC is a Home Infusion Therapy Pharmacy organization in Chandler, AZ (NPI 1497528418).
Provider details
- NPI number
- 1497528418
- Entity type
- Organization
- Primary specialty
- Home Infusion Therapy PharmacySuppliers
- Organization subpart
- No
- Authorized official
- Thomas Maiefski, President(480) 739-6040
Specialties & taxonomies
Suppliers
- Home Infusion Agency251F00000X
Agencies
Suppliers
- Pharmacy333600000X
Suppliers
- Community/Retail Pharmacy3336C0003X
Suppliers
- Compounding Pharmacy3336C0004X
Suppliers
- Specialty Pharmacy3336S0011X
Suppliers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
Other names (DBA / former)
- Doing business as
- Aspen Infusion
- Doing business as
- Aspen Infusion
Additional practice locations (1)
- 2227 W Pecos Rd Ste 12Chandler, AZ 85224-4866Phone: (480) 739-6040Fax: (480) 739-6072
Registry dates
- Enumerated
- 2023-11-01
- Last updated
- 2024-01-18
- Certified
- 2024-01-18
Frequently asked questions
- What is Twelfth One, LLC's NPI number?
- Twelfth One, LLC's National Provider Identifier (NPI) is 1497528418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Twelfth One, LLC?
- Twelfth One, LLC is classified in the NPPES registry as Home Infusion Therapy Pharmacy (Suppliers).
- Where is Twelfth One, LLC located?
- Twelfth One, LLC's practice location on file with NPPES is 2095 S Cooper Rd, Chandler, AZ 85286-7155.
- What is Twelfth One, LLC's phone number?
- The practice phone number listed in the NPPES registry for Twelfth One, LLC is (480) 739-6040.
- Does Twelfth One, LLC accept Medicare?
- Twelfth One, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Twelfth One, LLC?
- The authorized official listed on Twelfth One, LLC's NPPES record is Thomas Maiefski, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Twelfth One, LLC's NPI active?
- Yes — Twelfth One, LLC's NPI (1497528418) is active in the NPPES registry as of the last update on 2024-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.