Dr. Ghassan Y. Khamiseh, MD

  • Long Beach, CA
  • Internist
NPI1710009808
Medicare services, 2023
720
Part D claims, 2024
1,811
Publications
6
Industry payments
$783
Affiliated sites
1
Practice address
2800 Pacific Ave, Long Beach, CA 90806
Practice phone
Call (562) 337-8401
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Ultimate Health Medical Services , a California Liability Company

Long Beach, California

See all 2 affiliations

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Dr. Ghassan Y. Khamiseh is an internist in Long Beach, California

Dr. Khamiseh practices at Ultimate Health Medical Services , a California Liability Company in Long Beach, California.

Dr. Khamiseh's NPI, 1710009808, was assigned on April 6, 2007. Dr. Khamiseh graduated from Damascus University Faculty of Medicine in 1980. Dr. Khamiseh holds California license A60718.

NPI and contact details
NPI enumeration date
April 6, 2007
NPI status
Active
Practice phone
(562) 337-8401
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
72
Medical school graduation
1980

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Dr. Ghassan Y. Khamiseh practices at Ultimate Health Medical Services , a California Liability Company in Long Beach, California

Dr. Khamiseh's primary practice is Ultimate Health Medical Services , a California Liability Company, at 2800 Pacific Ave, Long Beach, CA 90806 in Los Angeles County. The practice phone is (562) 337-8401.

  • Ultimate Health Medical Services , a California Liability Company
    2800 Pacific Ave, Long Beach, CA 90806 · Los Angeles CountyPhone(562) 337-8401

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Ghassan Y. Khamiseh is affiliated with 2 sites of care

Dr. Khamiseh's primary practice is Ultimate Health Medical Services , a California Liability Company in Long Beach, California. Dmand AI also links Dr. Khamiseh to 1 physician office, named with a free account.

Ultimate Health Medical Services , a California Liability CompanyLong Beach, CaliforniaPrimary
1 physician officeName with a free account
See all 2 affiliations for Dr. Khamiseh

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Ghassan Y. Khamiseh's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Khamiseh practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ultimate Health Medical Services , a California Liability CompanyAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ghassan Y. Khamiseh is one of 16,751 internists in California

Internal medicine is Dr. Khamiseh's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Khamiseh's licenses on file in 3 states: California, Wisconsin and Oklahoma.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A60718 · 1996 to 2026 · taxonomy 207R00000X
  • Wisconsin license1995 to 2001
  • Oklahoma license1995

Clinical focus

Dmand AI lists chronic skin ulcer and peripheral vascular disease among the conditions Dr. Khamiseh treats.

Internists near Dr. Khamiseh

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Ghassan Y. Khamiseh billed Medicare for 720 services in 2023

CMS data shows 720 Medicare services from Dr. Khamiseh across 3 procedure codes in 2023. Medicare paid $24,053 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2023720
Paid by Medicare$24,053
Procedure codes3

Dr. Khamiseh's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Surgery
2022: 772023: 418443%
Office and hospital visits
2022: 692023: 302338%

Dr. Khamiseh compared with the California median for internists, 2023

  • Dr. Khamiseh
  • California median
Medicare services
720vs 36199% above
Part D claims
1,366vs 4213.2 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Khamiseh's most billed Medicare procedure codes, 2023

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Khamiseh

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Khamiseh and other internists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Ghassan Y. Khamiseh's patients have a median age of 48

Across all payers, Dmand AI patient panel data puts Dr. Khamiseh's median patient age at 48, with 57% women.

Dr. Khamiseh's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 48

Patient panel by sex, all payers

  • Women57%
  • Men42%

Source: Dmand AI Patient Panel Data

Dr. Ghassan Y. Khamiseh wrote 1,811 Medicare Part D claims in 2024

In 2024, Dr. Khamiseh wrote 1,811 Medicare Part D claims for 80 patients. 87% of them were for generic drugs. CMS names the drug for 1,366 of them, across 55 drugs with 11 or more claims each, at $185,496 in total drug cost. In 2023, CMS named 929 claims across 43 drugs.

Part D claims, 20241,811
Drugs named by CMS55
Total drug cost$185,496
Part D patients80

Dr. Khamiseh's Part D claims by kind of drug, 2024

  • Generic1,570 claims87%
  • Brand-name221 claims12%
  • Other20 claims1%

Dr. Khamiseh's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Khamiseh's Part D claims, 2024

  • Opioids5%87 of 1,811 claims
  • Antibiotics3%51 of 1,811 claims
  • Antipsychotics, patients 65 and over1%20 of 1,811 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 9292024: 1,36647%

Drugs named by CMS: 55 in 2024, 43 in 2023.

See all prescribing by Dr. Khamiseh

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Dr. Ghassan Y. Khamiseh has 6 publications on record

Dmand AI links 6 papers to Dr. Khamiseh. The most frequent topics are Rats, Inbred Strains, Acute Kidney Injury and Creatinine. Dr. Khamiseh has published most often in J Lab Clin Med. Dr. Khamiseh's most frequent co-authors are Nosratola D. Vaziri, MD, Madeleine V. Pahl, MD and Alan N Elias, MD.

Papers6

Topics Dr. Khamiseh writes about most

  • Rats, Inbred Strains
  • Acute Kidney Injury
  • Creatinine
  • Intestinal Absorption
  • Intestinal Mucosa
  • Kidney Failure, Chronic
  • Nephrotic Syndrome
  • Perfusion

Dr. Khamiseh's most frequent co-authors

Recent publications by Dr. Khamiseh

See all 6 publications and co-authors

See who Dr. Khamiseh researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Khamiseh works with, so you can find a warm path to the right internists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Ghassan Y. Khamiseh received $783 in industry payments from 2023 to 2025

CMS Open Payments shows 13 general payments to Dr. Khamiseh from 6 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $273.

General payments to Dr. Khamiseh by program year, 2023 to 2025

Companies that paid Dr. Khamiseh the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Khamiseh

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Ghassan Y. Khamiseh graduated from Damascus University Faculty of Medicine

Dr. Khamiseh graduated from Damascus University Faculty of Medicine in 1980.

  1. Medical schoolDamascus University Faculty of Medicine

Source: Dmand AI Professional Profile Data

Dr. Ghassan Y. Khamiseh accepts plans from 7 insurance carriers

Dr. Khamiseh is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and LA Care. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • LA Care
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Molina
  • Regence Health Plans

Plan types Dr. Khamiseh accepts, by number of carriers

  1. Medicare7
  2. PPO5
  3. HMO3
  4. POS2
  5. EPO1
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Ghassan Y. Khamiseh's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ghassan Y. Khamiseh

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Ghassan Y. Khamiseh's NPI number?

Dr. Ghassan Y. Khamiseh's NPI number is 1710009808. It was assigned on April 6, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Ghassan Y. Khamiseh?

Dr. Ghassan Y. Khamiseh is an internist in Long Beach, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Ghassan Y. Khamiseh practice?

Dr. Khamiseh practices at 2800 Pacific Ave, Long Beach, CA 90806. Dr. Khamiseh's primary practice is Ultimate Health Medical Services , a California Liability Company in Long Beach, California. Dmand AI also links Dr. Khamiseh to 1 physician office.

What is Dr. Ghassan Y. Khamiseh's office phone number?

The practice phone on file for Dr. Khamiseh is (562) 337-8401.

What is Dr. Ghassan Y. Khamiseh's medical license number?

Dr. Khamiseh holds California license A60718, one of the licenses on file in 3 states.

Which states has Dr. Ghassan Y. Khamiseh been licensed in?

Dmand AI has state licenses on file for Dr. Khamiseh in California (1996 to 2026), Wisconsin (1995 to 2001) and Oklahoma (1995).

Does Dr. Ghassan Y. Khamiseh accept Medicare?

Yes. CMS data shows Dr. Khamiseh billed Medicare for 720 services in 2023.

What services does Dr. Ghassan Y. Khamiseh bill to Medicare?

In 2023, Dr. Khamiseh's most billed Medicare services were surgery: skin and soft tissue (11721), nursing facility care (99304) and surgery: skin and soft tissue (11730).

Where did Dr. Ghassan Y. Khamiseh go to medical school?

Dr. Khamiseh graduated from Damascus University Faculty of Medicine in 1980.

What drugs does Dr. Ghassan Y. Khamiseh prescribe most?

In 2024 Medicare Part D data, Dr. Khamiseh's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Metformin HCl and Amlodipine Besylate.

Show 5 more questionsShow fewer questions

Has Dr. Ghassan Y. Khamiseh received payments from drug or device companies?

CMS Open Payments shows $783 in general payments to Dr. Khamiseh from 6 companies from 2023 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.

How long has Dr. Ghassan Y. Khamiseh been practicing?

Dr. Khamiseh graduated from medical school in 1980, 46 years ago.

Does Dr. Ghassan Y. Khamiseh do research?

Dmand AI links 6 publications to Dr. Khamiseh.

Who does Dr. Ghassan Y. Khamiseh publish with?

Dr. Khamiseh's most frequent co-authors are Nosratola D. Vaziri, MD (5 shared papers), Madeleine V. Pahl, MD (2 shared papers) and Alan N Elias, MD (1 shared paper).

What insurance does Dr. Ghassan Y. Khamiseh accept?

Dr. Khamiseh is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and LA Care. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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