Marissa A. Schwartz, MD
Otolaryngology Physician · Long Beach, CA
Marissa A. Schwartz, MD is an otolaryngology physician with a practice address in Long Beach, California, and NPI 1336553197, issued on Jun 19, 2014. Check the license (California A168513, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marissa A. Schwartz
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- A168513 CA
Self-reported in NPPES; status is on the state search - Practice location
- 433 E Wardlow RD, Long Beach, CA 90807
- Phone
- (562) 427-0550
- Enumerated
- Jun 19, 2014
- Record last updated
- Oct 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (562) 988-8899
- Medicare enrollment
- Enrolled (PECOS I20211019003037); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2014
- Entity
- Type 1 · individual
Also registered at 433 E Wardlow RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christy Beranek, PAPhysician Assistant1558654509
- Caitlin Bertelsen, MDOtolaryngology Physician1922471291
- Alyn Kim, MDOtolaryngology Physician1124288493
- Garrett Sherman, FNPNurse Practitioner1396398749
- Namrata Varma, D.O.Pediatric Otolaryngology Physician1679703599
- Ayal Willner, MDOtolaryngology Physician1548334295
Verify Marissa A. Schwartz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A168513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average otolaryngology physician in 2024
226 Medicare Part D claims for 102 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate56 claims
- Azelastine Hcl36 claims
- Ipratropium Bromide33 claims
- Montelukast Sodium20 claims
- Famotidine12 claims
- Omeprazole12 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.
Industry payments in 2024: $133.65
5 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Torrance Health Association IncTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
Other otolaryngology physician records in California
- Arman Abdalkhani, MDPalo Alto, CA1356536130
- Abdul-Rahman Abdel-ReheemLos Angeles, CA1831770437
- Ahmed AbdelmeguidPalo Alto, CA1447744180
- Rami Abdou, M.D.Santa Rosa, CA1700143013
- Eric AbelloOrange, CA1922566215
- Mohamed Aboueisha, MDLos Angeles, CA1316678881
- Marianne Abouyared, M.D.Sacramento, CA1235472200
- Norton Abramson, M.D.San Clemente, CA1356488696
- Basil Adad, MDWalnut Creek, CA1487732574
- Brett Adams, MDStockton, CA1407934227
Common questions
What is Marissa A. Schwartz, MD's NPI number?
Marissa A. Schwartz, MD's National Provider Identifier (NPI) is 1336553197, issued on Jun 19, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marissa A. Schwartz, MD located?
The NPPES record lists a practice address at 433 E Wardlow RD, Long Beach, CA, 90807. Phone: (562) 427-0550. Providers update this record themselves, so call before visiting.
How can I verify Marissa A. Schwartz, MD's license?
NPPES lists California license number A168513, 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 Marissa A. Schwartz, MD prescribe under Medicare Part D?
In 2024, Marissa A. Schwartz, MD had 226 Medicare Part D claims for 102 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
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.