On Call LLC
NPI 1396283057 · Family Nurse Practitioner · Chandler, AZ
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
On Call LLC is a Family Nurse Practitioner organization in Chandler, AZ (NPI 1396283057).
Provider details
- NPI number
- 1396283057
- Entity type
- Organization
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Organization subpart
- No
- Authorized official
- Wendy Markovich, Owner(480) 580-5371
- License
- AP2787 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
Other names (DBA / former)
- Doing business as
- Oncall Healthcare
Registry dates
- Enumerated
- 2017-02-02
- Last updated
- 2019-04-12
Frequently asked questions
- What is On Call LLC's NPI number?
- On Call LLC's National Provider Identifier (NPI) is 1396283057, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is On Call LLC?
- On Call LLC is classified in the NPPES registry as Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is On Call LLC located?
- On Call LLC's practice location on file with NPPES is 3100 W Ray Rd Ste 201, Chandler, AZ 85226-2472.
- What is On Call LLC's phone number?
- The practice phone number listed in the NPPES registry for On Call LLC is (480) 386-5305.
- Does On Call LLC accept Medicare?
- On Call 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 On Call LLC?
- The authorized official listed on On Call LLC's NPPES record is Wendy Markovich, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is On Call LLC's NPI active?
- Yes — On Call LLC's NPI (1396283057) is active in the NPPES registry as of the last update on 2019-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.