Mary Lousie Irwin, RN FNP
Family Nurse Practitioner · Paradise, CA
Mary Lousie Irwin, RN FNP is a family nurse practitioner with a practice address in Paradise, California, and NPI 1417197781, issued on Feb 26, 2009. Check the license (California 17509, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Lousie Irwin
- Credential
- RN FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 17509 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5125 Skyway, Paradise, CA 95969
- Phone
- (530) 872-2000
- Enumerated
- Feb 26, 2009
- Record last updated
- Feb 26, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 5125 Skyway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Uzoamaka Ben-Israel, NPFamily Nurse Practitioner1669160883
- Christine Brice, NPFamily Nurse Practitioner1467517524
- Deborah Campbell, FNPFamily Nurse Practitioner1346408473
Verify Mary Lousie Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 17509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family nurse practitioner in 2024
148 Medicare Part D claims for 69 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Omeprazole51 claims
- Famotidine35 claims
- Pantoprazole Sodium25 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): 78.3 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).
Mary Lousie Irwin among 16,966 family nurse practitioner records in California
Mary Lousie Irwin, RN FNP is one of 16,966 family nurse practitioner records with a practice address in California. 67% 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 15% of them.
- NPI issued2009 · 15% of these records are older, 83% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2009 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 family nurse practitioner records list a practice address in Paradise
They are 18 of the 511 NPPES records with a practice address in Paradise, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Paradise → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Christine Brice, NPParadise, CA 959691467517524
- Deborah Campbell, FNPParadise, CA 959691346408473
- Natalie Curry, FNP-CParadise, CA 959691962144824
- Jennifer Curtis, ARNPParadise, CA 959691215162540
- Lori GoodliffeParadise, CA 959691942550132
- Levi Gore, MSN, FNP-CParadise, CA 959691578960829
- Nou HerParadise, CA 959691013149996
- Kristen Herring, FNPParadise, CA 959691073911095
Common questions
What is Mary Lousie Irwin, RN FNP's NPI number?
Mary Lousie Irwin, RN FNP's National Provider Identifier (NPI) is 1417197781, issued on Feb 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mary Lousie Irwin, RN FNP located?
The NPPES record lists a practice address at 5125 Skyway, Paradise, CA, 95969. Phone: (530) 872-2000. Providers update this record themselves, so call before visiting.
How can I verify Mary Lousie Irwin, RN FNP's license?
NPPES lists California license number 17509, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Lousie Irwin, RN FNP prescribe under Medicare Part D?
In 2024, Mary Lousie Irwin, RN FNP had 148 Medicare Part D claims for 69 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Mary Lousie Irwin, RN FNP's MIPS final score?
The 2023 MIPS final score is 78.3 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.