NPPES file of Aug 9, 2026

Maya Christine Shammas, M.D.

Ophthalmology Physician · Lynwood, CA

Maya Christine Shammas, M.D. is an ophthalmology physician with a practice address in Lynwood, California, and NPI 1649438763, issued on May 27, 2008. Check the license (California A113118, 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
1649438763
Name
Maya Christine Shammas
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
A113118 CA
245279 NY
Self-reported in NPPES; status is on the state search
Practice location
3510 Martin Luther King JR Blvd, Lynwood, CA 90262
Phone
(310) 638-9391
Enumerated
May 27, 2008
Record last updated
Aug 9, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(310) 603-8749
Medicare enrollment
Enrolled (PECOS I20101203001073); accepts Medicare assignment
Medical or professional school
Js Weill Medical College, Cornell University, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3510 Martin Luther King JR Blvd

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

  1. Theodore OkieOphthalmology Physician1629184098
  2. Joseph Peters, M.D.Ophthalmology Physician1568577567
  3. Mary Riveira, CRNACertified Registered Nurse Anesthetist1528131786
  4. Ramie Shah, ODOptometrist1407534456
  5. Hanna Shammas, M.D.Ophthalmology Physician1770698854
  6. Thanh-Thao Vu, MDOphthalmology Physician1912565144

Verify Maya Christine Shammas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A113118
    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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3.7 times the Medicare Part D claims of the average ophthalmology physician in 2024

5,629 Medicare Part D claims for 1,150 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.

  1. Maya Shammas5,629
  2. Specialty average1,518

Most prescribed

  1. Latanoprost1,641 claims
  2. Prednisolone Acetate757 claims
  3. Ketorolac Tromethamine694 claims
  4. Moxifloxacin683 claims
  5. Dorzolamide-Timolol426 claims
  6. Brimonidine Tartrate247 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): 99.9 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 score100.0
  2. Costout of 100 · 30%69.8
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $2,726.84

48 payments; by number, the most common kind was food and beverage; the largest payer was Tarsus Pharmaceuticals, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maya Shammas$2,726.84
  2. Specialty average$4,535.02

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

  1. H Shammas MD IncLynwood, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Maya Christine Shammas among 2,899 ophthalmology physician records in California

Maya Christine Shammas, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 67% of them.

  • NPI issued2008 · 67% of these records are older, 28% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2006 · median 2001 among the 1,907 with a school on file
  • Record last updated2010 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Theodore OkieLynwood, CA 902621629184098
  2. Joseph Peters, M.D.Lynwood, CA 902621568577567
  3. Hanna Shammas, M.D.Lynwood, CA 902621770698854
  4. Thanh-Thao Vu, MDLynwood, CA 902621912565144
  5. Matthew Hecht, M DLawndale, CA 902601184783508
  6. David Markman, M.D.Lawndale, CA 902601508961640
  7. Carlos Montoya, MDHuntington Park, CA 902551063420974
  8. Carlos Montoya, M.D.Huntington Park, CA 902551386616019

Common questions

What is Maya Christine Shammas, M.D.'s NPI number?

Maya Christine Shammas, M.D.'s National Provider Identifier (NPI) is 1649438763, issued on May 27, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Maya Christine Shammas, M.D. located?

The NPPES record lists a practice address at 3510 Martin Luther King JR Blvd, Lynwood, CA, 90262. Phone: (310) 638-9391. Providers update this record themselves, so call before visiting.

How can I verify Maya Christine Shammas, M.D.'s license?

NPPES lists California license number A113118, 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 Maya Christine Shammas, M.D. prescribe under Medicare Part D?

In 2024, Maya Christine Shammas, M.D. had 5,629 Medicare Part D claims for 1,150 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Maya Christine Shammas, M.D.'s MIPS final score?

The 2023 MIPS final score is 99.9 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.