Mary Esther Leier, N.P.
Family Nurse Practitioner · Los Angeles, CA
Mary Esther Leier, N.P. is a family nurse practitioner with a practice address in Los Angeles, California, and NPI 1417216391, issued on May 11, 2012. Check the license (California 20982, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Esther Leier
- Credential
- N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 20982 CA
Self-reported in NPPES; status is on the state search - Practice location
- 127 S San Vicente Blvd # A-3028, Los Angeles, CA 90048
- Phone
- (310) 423-7060
- Enumerated
- May 11, 2012
- Record last updated
- Jun 28, 2023
- Fax
- (310) 423-6795
- Medicare enrollment
- Enrolled (PECOS I20150608001799); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Verify Mary Esther Leier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 20982Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average family nurse practitioner in 2024
668 Medicare Part D claims for 226 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Eliquis145 claims
- Metoprolol Succinate127 claims
- Sotalol61 claims
- Flecainide Acetate55 claims
- Amiodarone Hcl52 claims
- Xarelto28 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): 87.7 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).
Industry payments in 2024: $1,263.67
9 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 99,489 providers of this specialty with any payment received $650.95 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.
One hospital affiliation
- Cedars-Sinai Medical CenterTorrance, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mary Esther Leier among 16,966 family nurse practitioner records in California
Mary Esther Leier, N.P. 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 2012, is newer than 21% of them.
- NPI issued2012 · 21% of these records are older, 76% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2011 · median 2019 among the 6,793 with a school on file
- Record last updated2023 · 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).
1,103 family nurse practitioner records list a practice address in Los Angeles
They are 1,103 of the 69,537 NPPES records with a practice address in Los Angeles, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Los Angeles → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Dianne Bedford, NP-CLos Angeles, CA 900481750425039
- Kristi Butenschoen, FNP-CLos Angeles, CA 900481487860375
- Helen Cambron, RN, MSN,FNP-CLos Angeles, CA 900481851505598
- Seda Gharapetian, MSN-FNPWest Hollywood, CA 900481417283433
- Janet Gripshover, CRNPWest Hollywood, CA 900481851431290
- Colleen Jackson, NURSE PRACTITIONERWest Hollywood, CA 900481134331259
- Patricia Lebel, RN FNP CDELos Angeles, CA 900481205041183
- Susie Lee, RN, NPLos Angeles, CA 900481013030899
Common questions
What is Mary Esther Leier, N.P.'s NPI number?
Mary Esther Leier, N.P.'s National Provider Identifier (NPI) is 1417216391, issued on May 11, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Mary Esther Leier, N.P. located?
The NPPES record lists a practice address at 127 S San Vicente Blvd # A-3028, Los Angeles, CA, 90048. Phone: (310) 423-7060. Providers update this record themselves, so call before visiting.
How can I verify Mary Esther Leier, N.P.'s license?
NPPES lists California license number 20982, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Esther Leier, N.P. prescribe under Medicare Part D?
In 2024, Mary Esther Leier, N.P. had 668 Medicare Part D claims for 226 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Mary Esther Leier, N.P.'s MIPS final score?
The 2023 MIPS final score is 87.7 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.