NPPES file of Aug 9, 2026

Molly Grassini

Emergency Medicine Physician · Los Angeles, CA

Molly Grassini is an emergency medicine physician with a practice address in Los Angeles, California, and NPI 1114458114, issued on Mar 22, 2017. Check the license (California A157859, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114458114
Name
Molly Grassini
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A157859 CA
Self-reported in NPPES; status is on the state search
Practice location
1200 N State St, Los Angeles, CA 90033
Phone
(818) 632-8101
Enumerated
Mar 22, 2017
Record last updated
Jul 23, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1200 N State St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sadeea Abbasi, M.D., PH.D.Gastroenterology Physician1366713513
  2. Danna Abdel-Khader, MDInternal Medicine Physician1780977827
  3. Terri Leigh Abe, MDInternal Medicine Physician1881897569
  4. Mona Abedzadeh, M.A CCC-SLPSpeech-Language Pathologist1699988451
  5. Zachary AbelsonObstetrics & Gynecology Physician1689237414
  6. Laurel Aberle, MDStudent in an Organized Health Care Education/Training Program1184367484

Verify Molly Grassini in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A157859
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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94% fewer Medicare Part D claims than the average emergency medicine physician in 2024

14 Medicare Part D claims for 13 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Molly Grassini14
  2. Specialty average226

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): 91.4 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.

  1. Qualityout of 100 · 30% of the final score78.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Molly Grassini among 7,751 emergency medicine physician records in California

Molly Grassini is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.

  • NPI issued2017 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Deirdre Anglin, MDLos Angeles, CA 900331306932025
  2. Joseph BaltrushesLos Angeles, CA 900331629152178
  3. Aaron Bright, M.D.Los Angeles, CA 900331023054087
  4. Christopher Celentano, MDLos Angeles, CA 900331972516417
  5. Christine DinuzzoLos Angeles, CA 900331952456741
  6. Marc Eckstein, M.D.Los Angeles, CA 900331922010867
  7. Sean Henderson, M.D.Los Angeles, CA 900331205887064
  8. Helen Ho, MDLos Angeles, CA 900331447208962

Common questions

What is Molly Grassini's NPI number?

Molly Grassini's National Provider Identifier (NPI) is 1114458114, issued on Mar 22, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Molly Grassini located?

The NPPES record lists a practice address at 1200 N State St, Los Angeles, CA, 90033. Phone: (818) 632-8101. Providers update this record themselves, so call before visiting.

How can I verify Molly Grassini's license?

NPPES lists California license number A157859, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Molly Grassini prescribe under Medicare Part D?

In 2024, Molly Grassini had 14 Medicare Part D claims for 13 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Molly Grassini's MIPS final score?

The 2023 MIPS final score is 91.4 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.