Arizona Allergy and Asthma Specialists P C
NPI 1831557321 · Clinic/Center · Phoenix, AZ
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arizona Allergy and Asthma Specialists P C is a Clinic/Center organization in Phoenix, AZ (NPI 1831557321).
Provider details
- NPI number
- 1831557321
- Entity type
- Organization
- Primary specialty
- Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Brian Millhollon, Doctor/President(480) 705-8844
- License
- 21604 (AZ)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
- 2016-01-29
- Last updated
- 2021-10-29
- Certified
- 2021-10-29
Frequently asked questions
- What is Arizona Allergy and Asthma Specialists P C's NPI number?
- Arizona Allergy and Asthma Specialists P C's National Provider Identifier (NPI) is 1831557321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Arizona Allergy and Asthma Specialists P C?
- Arizona Allergy and Asthma Specialists P C is classified in the NPPES registry as Clinic/Center (Ambulatory Health Care Facilities).
- Where is Arizona Allergy and Asthma Specialists P C located?
- Arizona Allergy and Asthma Specialists P C's practice location on file with NPPES is 16611 S 40th St, Phoenix, AZ 85048-0562.
- What is Arizona Allergy and Asthma Specialists P C's phone number?
- The practice phone number listed in the NPPES registry for Arizona Allergy and Asthma Specialists P C is (480) 705-8844.
- Does Arizona Allergy and Asthma Specialists P C accept Medicare?
- Arizona Allergy and Asthma Specialists P C 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 Arizona Allergy and Asthma Specialists P C?
- The authorized official listed on Arizona Allergy and Asthma Specialists P C's NPPES record is Brian Millhollon, Doctor/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Arizona Allergy and Asthma Specialists P C's NPI active?
- Yes — Arizona Allergy and Asthma Specialists P C's NPI (1831557321) is active in the NPPES registry as of the last update on 2021-10-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.