NPPES file of Aug 9, 2026

Ghassan Said Tooma, MD

Orthopaedic Surgery Physician · Corona, CA

Ghassan Said Tooma, MD is an orthopaedic surgery physician with a practice address in Corona, California, and NPI 1629089073, issued on Aug 11, 2006. Check the license (California G64601, 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
1629089073
Name
Ghassan Said Tooma
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
G64601 CA
Self-reported in NPPES; status is on the state search
Practice location
341 Magnolia Ave, Corona, CA 92879
Phone
(951) 735-6060
Enumerated
Aug 11, 2006
Record last updated
Jan 16, 2022
Fax
(951) 735-4510
Medicaid ID
00G646010 CA
Medicare enrollment
Enrolled (PECOS I20081112000168); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1987
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 341 Magnolia Ave

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

  1. Bradley Baum, MDOrthopaedic Surgery Physician1205847654
  2. Ralph Gozun, DPTPhysical Therapist1508283664
  3. Michael HashemiPhysical Therapist1356772552
  4. Jamie Hess, N.P.Women's Health Nurse Practitioner1104196120
  5. Hillary Houseman, PA-CPhysician Assistant1952469371
  6. Neilvon LangasPhysical Therapist1174954366

Verify Ghassan Said Tooma in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G64601
    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

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34% more Medicare Part D claims than the average orthopaedic surgery physician in 2024

463 Medicare Part D claims for 209 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 158 claims were for opioids.

  1. Ghassan Tooma463
  2. Specialty average346

Most prescribed

  1. Oxycodone-Acetaminophen55 claims
  2. Cephalexin51 claims
  3. Meloxicam47 claims
  4. Tramadol Hcl45 claims
  5. Hydrocodone-Acetaminophen44 claims
  6. Ibuprofen39 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): 75 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 score51.8
  2. Costout of 100 · 30%67.1
  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).

Bills Medicare through one group practice

  1. Corona Orthopaedic Associates Medical Group IncCorona, CA

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

Orthopaedic Surgery Physician providers in California

There are 2,276 orthopaedic surgery physician records in California.

Other orthopaedic surgery physician records in California

  1. Karim Abdollahi, M.D.Laguna Beach, CA1942240403
  2. Michael Abdulian, MDGlendale, CA1649469628
  3. Hussein Abdulrassoul, MDRiverside, CA1972123891
  4. Douglas Abeles, MDCastro Valley, CA1508961582
  5. Anthony Abene, MDSan Jose, CA1457437964
  6. Torgom Abraamyan, M.D.Van Nuys, CA1013370410
  7. Monther AbuhantashSan Francisco, CA1447041512
  8. Joshua Acebo, MDPalo Alto, CA1396373734
  9. Daniel Acevedo, M.D.Thousand Oaks, CA1184856122
  10. John Adams, MDLos Angeles, CA1215914114

Common questions

What is Ghassan Said Tooma, MD's NPI number?

Ghassan Said Tooma, MD's National Provider Identifier (NPI) is 1629089073, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ghassan Said Tooma, MD located?

The NPPES record lists a practice address at 341 Magnolia Ave, Corona, CA, 92879. Phone: (951) 735-6060. Providers update this record themselves, so call before visiting.

How can I verify Ghassan Said Tooma, MD's license?

NPPES lists California license number G64601, 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 Ghassan Said Tooma, MD prescribe under Medicare Part D?

In 2024, Ghassan Said Tooma, MD had 463 Medicare Part D claims for 209 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

What is Ghassan Said Tooma, MD's MIPS final score?

The 2023 MIPS final score is 75 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.