Margaret P. Guerrero, NP
Nurse Practitioner · Anaheim, CA
Margaret P. Guerrero, NP is a nurse practitioner with a practice address in Anaheim, California, and NPI 1790856680, issued on Nov 13, 2006. Check the license (California NP11576, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret P. Guerrero
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- NP11576 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1188 N Euclid St, Anaheim, CA 92801
- Phone
- (888) 988-2800
- Enumerated
- Nov 13, 2006
- Record last updated
- Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040721001228); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 1188 N Euclid St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ryann Ahern, M.D.Internal Medicine Physician1306149166
- Syed Ahmed, PHARMDPharmacist1780478875
- Eileen Arcebal, M.A., CCC-SLPSpeech-Language Pathologist1295855641
- Amalia Arizpe-Fernandez, LMFTProfessional Counselor1205033792
- Daniel Arvesen, M.A., LMFTMarriage & Family Therapist1659433860
- Gina Bodnar, M.S.Marriage & Family Therapist1558553669
Verify Margaret P. Guerrero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP11576Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average nurse practitioner in 2024
2,381 Medicare Part D claims for 360 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 69% of claims.
Most prescribed
- Ozempic454 claims
- Nano 2nd Gen Pen Needle277 claims
- Humalog Kwikpen U-100256 claims
- Insulin Glargine-Yfgn226 claims
- Humalog222 claims
- Humulin R116 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.
Industry payments in 2024: $99.39
4 payments; by number, the most common kind was food and beverage; the largest payer was Tandem Diabetes Care, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret P. Guerrero among 8,223 nurse practitioner records in California
Margaret P. Guerrero, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 82% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2000 · median 2017 among the 3,425 with a school on file
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
95 nurse practitioner records list a practice address in Anaheim
They are 95 of the 9,018 NPPES records with a practice address in Anaheim, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Anaheim → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Donna Do, RNPAnaheim, CA 928011841254489
- Rita Grijalva, RNPAnaheim, CA 928011568423317
- Amylou Grace Harms, NP-CAnaheim, CA 928011932571759
- Jeniffer Johnson, N.P.Anaheim, CA 928011568651909
- Yen Kim, DNP, FNP, AGNP, BSNAnaheim, CA 928011760852263
- Minami Konishi, NPAnaheim, CA 928011982211769
- Eliana Marquez, NPAnaheim, CA 928011306310750
- Britney Nguyen, N.P.Anaheim, CA 928011508045881
Common questions
What is Margaret P. Guerrero, NP's NPI number?
Margaret P. Guerrero, NP's National Provider Identifier (NPI) is 1790856680, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret P. Guerrero, NP located?
The NPPES record lists a practice address at 1188 N Euclid St, Anaheim, CA, 92801. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.
How can I verify Margaret P. Guerrero, NP's license?
NPPES lists California license number NP11576, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret P. Guerrero, NP prescribe under Medicare Part D?
In 2024, Margaret P. Guerrero, NP had 2,381 Medicare Part D claims for 360 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.