Margaret Regan-Rainey, NP
Nurse Practitioner · Los Angeles, CA
Margaret Regan-Rainey, NP is a nurse practitioner with a practice address in Los Angeles, California, and NPI 1831333459, issued on Apr 27, 2009. Check the license (California 10841, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Regan-Rainey
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 10841 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 N State St, Los Angeles, CA 90033
- Phone
- (323) 226-6395
- Enumerated
- Apr 27, 2009
- Record last updated
- Apr 11, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (323) 226-2791
- Medicare enrollment
- Enrolled (PECOS I20180116002601); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 1200 N State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Laurel Aberle, MDStudent in an Organized Health Care Education/Training Program1184367484
Verify Margaret Regan-Rainey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 10841Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average nurse practitioner in 2024
89 Medicare Part D claims for 47 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Gabapentin13 claims
- Naproxen12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Margaret Regan-Rainey among 8,223 nurse practitioner records in California
Margaret Regan-Rainey, 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 2009, is newer than 30% of them.
- NPI issued2009 · 30% of these records are older, 68% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated1999 · median 2017 among the 3,425 with a school on file
- Record last updated2014 · 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).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Los Angeles → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Parvaneh Afshari, RNPLos Angeles, CA 900331730270828
- Elsie Alfaro, NPLos Angeles, CA 900331548481062
- Ligaya CastilloLos Angeles, CA 900331003940503
- Beverly Crawford, RNPLos Angeles, CA 900331265528236
- Beverly Dixon, RNPLos Angeles, CA 900331457447401
- Nasrin Esnaashari, NPLos Angeles, CA 900331831389477
- Paige Hardin, RNPLos Angeles, CA 900331154417053
- Ileana Meza, RNLos Angeles, CA 900331588750335
Common questions
What is Margaret Regan-Rainey, NP's NPI number?
Margaret Regan-Rainey, NP's National Provider Identifier (NPI) is 1831333459, issued on Apr 27, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Regan-Rainey, NP located?
The NPPES record lists a practice address at 1200 N State St, Los Angeles, CA, 90033. Phone: (323) 226-6395. Providers update this record themselves, so call before visiting.
How can I verify Margaret Regan-Rainey, NP's license?
NPPES lists California license number 10841, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Regan-Rainey, NP prescribe under Medicare Part D?
In 2024, Margaret Regan-Rainey, NP had 89 Medicare Part D claims for 47 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Margaret Regan-Rainey, NP's MIPS final score?
The 2023 MIPS final score is 85.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.