NPPES file of Aug 9, 2026

Ghassan Hadi, M.D.

Internal Medicine Physician · Upland, CA

Ghassan Hadi, M.D. is an internal medicine physician with a practice address in Upland, California, and NPI 1558497891, issued on Feb 23, 2007. Check the license (California A52260, 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
1558497891
Name
Ghassan Hadi
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A52260 CA
Self-reported in NPPES; status is on the state search
Practice location
1060 E Foothill Blvd, Upland, CA 91786
Phone
(909) 981-8904
Enumerated
Feb 23, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(909) 981-8943
Medicare enrollment
Enrolled (PECOS I20071211000547); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1060 E Foothill Blvd

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

  1. Jalal Badday, M.D.Specialist1013951870
  2. Rami Hashish, PTPhysical Therapist1053712695
  3. Yin Lai, MDFamily Medicine Physician1659344943
  4. Gladys Ramirez, FNPFamily Nurse Practitioner1255873238
  5. Krutika ShahPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1669819140

Verify Ghassan Hadi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A52260
    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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3.2 times the Medicare Part D claims of the average internal medicine physician in 2024

10,225 Medicare Part D claims for 443 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 395 claims were for opioids.

  1. Ghassan Hadi10,225
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium540 claims
  2. Eliquis359 claims
  3. Gabapentin263 claims
  4. Hydrocodone-Acetaminophen256 claims
  5. Metformin Hcl237 claims
  6. Levothyroxine Sodium236 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 MIPS final score for 2023 (Medicare payment program): 14.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costout of 100 · 30%48.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $113.96

5 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ghassan Hadi$113.96
  2. Specialty average$1,303.06

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. Ghassan Hadi MD IncUpland, CA

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

Internal Medicine Physician providers in California

There are 17,696 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Ghassan Hadi, M.D.'s NPI number?

Ghassan Hadi, M.D.'s National Provider Identifier (NPI) is 1558497891, issued on Feb 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ghassan Hadi, M.D. located?

The NPPES record lists a practice address at 1060 E Foothill Blvd, Upland, CA, 91786. Phone: (909) 981-8904. Providers update this record themselves, so call before visiting.

How can I verify Ghassan Hadi, M.D.'s license?

NPPES lists California license number A52260, 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 Hadi, M.D. prescribe under Medicare Part D?

In 2024, Ghassan Hadi, M.D. had 10,225 Medicare Part D claims for 443 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Ghassan Hadi, M.D.'s MIPS final score?

The 2023 MIPS final score is 14.4 of 100. 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.