Lois Walker
Nurse Practitioner · Somerton, AZ
Lois Walker is a nurse practitioner with a practice address in Somerton, Arizona, and NPI 1659788966, issued on Jul 18, 2014. Check the license (Arizona AP9845, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lois Walker
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- AP9845 AZ
R80468 AR
Self-reported in NPPES; status is on the state search - Practice location
- 214 W Main St, Somerton, AZ 85350
- Phone
- (928) 627-1120
- Enumerated
- Jul 18, 2014
- Record last updated
- Aug 14, 2024
- Fax
- (928) 627-8773
- Medicaid IDs
- 116399726 AR
205411758 AR
211456002 AR - Medicare enrollment
- Enrolled (PECOS I20170608001659); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 214 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Bailey, ED. D.Psychologist1255578324
- Alberto Cabrera, FNP-BCFamily Nurse Practitioner1225894934
- Keever Czlapinski, PH.DPsychologist1568791119
- Catherine Fang, LPCProfessional Counselor1538813522
- Criselda Flores, LPCProfessional Counselor1265949531
- Patricia Gonzalez, M.S., SLPSpeech-Language Pathologist1427577857
Verify Lois Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license AP9845Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average nurse practitioner in 2024
375 Medicare Part D claims for 38 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Escitalopram Oxalate35 claims
- Alprazolam33 claims
- Clonazepam31 claims
- Sertraline Hcl24 claims
- Trazodone Hcl24 claims
- Quetiapine Fumarate22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- San Luis Walk-IN Clinic IncSomerton, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 nurse practitioner records list a practice address in Somerton
They are 1 of the 88 NPPES records with a practice address in Somerton, and 1,423 nurse practitioner records in Arizona.
Other nurse practitioner records in Arizona
- Emma Abbey, NP-CTucson, AZ1548822562
- Ashley Abell, MSN, RN, FNP-CScottsdale, AZ1679041099
- Meredith AbneyChandler, AZ1568392124
- Armando Abucejo, AGACNP-BCPhoenix, AZ1649785288
- Belinda Acosta, FNPTucson, AZ1386622660
- Caitlin Adamowicz, NPScottsdale, AZ1104583152
- Jamie AdamsFort Defiance, AZ1144007097
- Kalekia Adams, DNPScottsdale, AZ1619555034
- Rachael Adger, NPTucson, AZ1306806443
- Jacqueline Agenbroad, NPPhoenix, AZ1447222328
Common questions
What is Lois Walker's NPI number?
Lois Walker's National Provider Identifier (NPI) is 1659788966, issued on Jul 18, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Lois Walker located?
The NPPES record lists a practice address at 214 W Main St, Somerton, AZ, 85350. Phone: (928) 627-1120. Providers update this record themselves, so call before visiting.
How can I verify Lois Walker's license?
NPPES lists Arizona license number AP9845, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Lois Walker prescribe under Medicare Part D?
In 2024, Lois Walker had 375 Medicare Part D claims for 38 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
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.
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.