Nicholas P. Marsico, M.D.
Specialist · Los Angeles, CA
Nicholas P. Marsico, M.D. is a specialist with a practice address in Los Angeles, California, and NPI 1992876155, issued on Nov 10, 2006. Check the license (California A86442, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nicholas P. Marsico
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A86442 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 E 3RD St, Los Angeles, CA 90013
- Phone
- (213) 680-1551
- Enumerated
- Nov 10, 2006
- Record last updated
- Dec 14, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (213) 680-2148
- Medicaid IDs
- GR0078580 CA
GR0078583 CA
GR0078582 CA
00A864420 CA - Medicare enrollment
- Enrolled (PECOS I20040825001374); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 420 E 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Queenie AmugoCommunity Health Worker1144690298
- Naomi Arellano, MSWClinical Social Worker1225168305
- Michael Baker, O.D.Optometrist1679820245
- Steven Castro, PHYSICAL THERAPISTPhysical Therapist1114084100
- Stacy Casucci, RDNRegistered Dietitian1043889926
- Monte Christen, CRNACertified Registered Nurse Anesthetist1093813164
Verify Nicholas P. Marsico in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A86442Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average specialist in 2024
1,342 Medicare Part D claims for 366 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of claims.
Most prescribed
- Latanoprost375 claims
- Timolol Maleate113 claims
- Brimonidine Tartrate106 claims
- Dorzolamide-Timolol73 claims
- Prednisolone Acetate61 claims
- Lumigan50 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $637.82
20 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 5,844 providers of this specialty with any payment received $4,760.79 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
- East-West Eye Institute A Medical CorporationTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas P. Marsico among 5,749 specialist records in California
Nicholas P. Marsico, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1996 · median 1989 among the 1,075 with a school on file
- Record last updated2007 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Los Angeles → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
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- Patrick KhooLos Angeles, CA 900131538618509
- Fred Kurata, MDLos Angeles, CA 900131205906740
- Harold Reaves, M.D.Los Angeles, CA 900131962408427
- Steven Grinsted, PTLos Angeles, CA 900121497765986
- Trammell JonesLos Angeles, CA 900141669312310
- Shayan Rab, M.D.Los Angeles, CA 900121356609119
- Thomas Bogaard, MDLos Angeles, CA 900151861438004
Common questions
What is Nicholas P. Marsico, M.D.'s NPI number?
Nicholas P. Marsico, M.D.'s National Provider Identifier (NPI) is 1992876155, issued on Nov 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas P. Marsico, M.D. located?
The NPPES record lists a practice address at 420 E 3RD St, Los Angeles, CA, 90013. Phone: (213) 680-1551. Providers update this record themselves, so call before visiting.
How can I verify Nicholas P. Marsico, M.D.'s license?
NPPES lists California license number A86442, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nicholas P. Marsico, M.D. prescribe under Medicare Part D?
In 2024, Nicholas P. Marsico, M.D. had 1,342 Medicare Part D claims for 366 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Nicholas P. Marsico, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.