NPPES file of Aug 9, 2026

Lois Margaret II Ross, APRN-RNP

Family Medicine Physician · Phoenix, AZ

Lois Margaret II Ross, APRN-RNP is a family medicine physician with a practice address in Phoenix, Arizona, and NPI 1508566852, issued on Mar 6, 2023. Check the license (Arizona RNP-288804, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508566852
Name
Lois Margaret II Ross
Credential
APRN-RNP
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
RNP-288804 AZ
Self-reported in NPPES; status is on the state search
Practice location
7500 N Dreamy Draw Dr, Phoenix, AZ 85020
Phone
(520) 335-3600
Enumerated
Mar 6, 2023
Record last updated
Jan 29, 2026
Fax
(520) 244-1679
Medicare enrollment
Enrolled (PECOS I20250502001692); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 7500 N Dreamy Draw Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Dezirae Cordero, CNA,Student in an Organized Health Care Education/Training Program1659646511
  2. Shirlene Gardner, LPNLicensed Practical Nurse1417326042
  3. Tayler Lewis, FNPFamily Nurse Practitioner1679028252
  4. Maria Ospina, MDNeurology Physician1881633212
  5. Susan Pansing, MDNeurology Physician1306816533
  6. Joseline Valdez Trujillo, RNSchool Registered Nurse1467348318

Verify Lois Margaret II Ross in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license RNP-288804    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Metro Infectious Disease Consultants LLCPrescott, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

649 family medicine physician records list a practice address in Phoenix

They are 649 of the 31,399 NPPES records with a practice address in Phoenix, and 3,119 family medicine physician records in Arizona.

All 649 in Phoenix → All 3,119 in Arizona → Every provider in Phoenix →

Other family medicine physician records in Arizona

  1. Muhammad Aamer, M.D.Yuma, AZ1437574720
  2. Ndidi Abara, M.D.Yuma, AZ1295115145
  3. Steven Abdelmalak, MDScottsdale, AZ1205092806
  4. Daniel Abelev, MDPhoenix, AZ1417573163
  5. Lindsey Abeyta, FNPTucson, AZ1043027857
  6. Modupeola Abiodun, M.D.Chandler, AZ1225326853
  7. Sara Abolmolouk, MDTucson, AZ1497043715
  8. Ahmed Abouzeid, MDGlendale, AZ1871619601
  9. Edward Abraham, M.D.Phoenix, AZ1144593211
  10. Rebecca Abraham, M.D.Surprise, AZ1437273323

Common questions

What is Lois Margaret II Ross, APRN-RNP's NPI number?

Lois Margaret II Ross, APRN-RNP's National Provider Identifier (NPI) is 1508566852, issued on Mar 6, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Lois Margaret II Ross, APRN-RNP located?

The NPPES record lists a practice address at 7500 N Dreamy Draw Dr, Phoenix, AZ, 85020. Phone: (520) 335-3600. Providers update this record themselves, so call before visiting.

How can I verify Lois Margaret II Ross, APRN-RNP's license?

NPPES lists Arizona license number RNP-288804, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.