Gladys Casillas, NP
Nurse Practitioner · Signal Hill, CA
Gladys Casillas, NP is a nurse practitioner with a practice address in Signal Hill, California, and NPI 1750632519, issued on Sep 19, 2012. Check the license (California 671316, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gladys Casillas
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 671316 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2855 Temple Ave Ste B, Signal Hill, CA 90755
- Phone
- (562) 426-7500
- Enumerated
- Sep 19, 2012
- Record last updated
- Mar 31, 2026
- Fax
- (562) 424-9588
- Medicare enrollment
- Enrolled (PECOS I20121109000282); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 2855 Temple Ave Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Farideh Bahrami, RNPNurse Practitioner1083675821
- Maria Cabrales, NPFamily Nurse Practitioner1497440119
- Mary Khristeen Isidro, NPAdult Health Nurse Practitioner1528822525
- Lynn Keitz, FNP-CFamily Nurse Practitioner1699231621
- Marien Zavala, AGAC-NPNurse Practitioner1780163188
Verify Gladys Casillas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 671316Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average nurse practitioner in 2024
157 Medicare Part D claims for 49 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Gabapentin11 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
- AB Safe Haven Palliative And Hospice Care IncSignal Hill, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
5 nurse practitioner records list a practice address in Signal Hill
They are 5 of the 257 NPPES records with a practice address in Signal Hill, and 8,223 nurse practitioner records in California.
All 5 in Signal Hill → All 8,223 in California → Every provider in Signal Hill →
Other nurse practitioner records in California
- Barbara Aaronson, RN/NURSE PRACTITONERLos Angeles, CA1588988182
- Albert Aba, AGNPSan Francisco, CA1578353777
- Martha Ababneh, CNAEl Monte, CA1275118614
- Maria Katrina Abad, AGPCNP-BCSan Carlos, CA1306394952
- Shayda Abadi, NPPalo Alto, CA1316745540
- Jessika Abarca, NPSan Fernando, CA1972263945
- Hangama Abassi, N.P.Walnut Creek, CA1487083655
- Elizabeth Abaunza, NPSan Francisco, CA1962044347
- Honeylynn Abaya, NPMoreno Valley, CA1528799145
- Tara Abbondanza, NPArcadia, CA1730355173
Common questions
What is Gladys Casillas, NP's NPI number?
Gladys Casillas, NP's National Provider Identifier (NPI) is 1750632519, issued on Sep 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Gladys Casillas, NP located?
The NPPES record lists a practice address at 2855 Temple Ave Ste B, Signal Hill, CA, 90755. Phone: (562) 426-7500. Providers update this record themselves, so call before visiting.
How can I verify Gladys Casillas, NP's license?
NPPES lists California license number 671316, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gladys Casillas, NP prescribe under Medicare Part D?
In 2024, Gladys Casillas, NP had 157 Medicare Part D claims for 49 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.