Dr. Mousa Matar, MD
- Medicare services, 2024
- 3,684
- Medicare patients, 2024
- 596
- Part D claims, 2024
- 10,030
- Publications
- 1
- MIPS score, 2024
- 75
- Practice address
- 4440 Brockton Ave Ste 100, Riverside, CA 92501-4026
- Practice phone
- Call (773) 814-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mousa Matar, MD
Physician office · Riverside, California
Find Dr. Matar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mousa Matar is an internist in Riverside, California
Dr. Matar practices at Mousa Matar, MD in Riverside, California.
Dr. Matar's NPI, 1992116982, was assigned on May 13, 2014. Dr. Matar holds California license A167764.
- NPI
- 1992116982NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567737026
- NPI enumeration date
- May 13, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 814-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mousa Matar practices at Mousa Matar, MD in Riverside, California
Dr. Matar's primary practice is Mousa Matar, MD, at 4440 Brockton Ave Ste 100, Riverside, CA 92501-4026. The practice phone is (773) 814-8200.
- Mousa Matar, MD4440 Brockton Ave Ste 100, Riverside, CA 92501-4026Phone(773) 814-8200
Source: Dmand AI Affiliation Data
Dr. Mousa Matar is affiliated with 15 sites of care and 3 medical groups
Dr. Matar's primary practice is Mousa Matar, MD in Riverside, California. Dr. Matar is also affiliated with Riverside Community Hospital. The medical group on file is Quantum Healthcare Medical Associates Inc. Dmand AI also links Dr. Matar to 1 more hospital, 5 home health agencies, 5 skilled nursing facilities, 2 medical groups, 1 group practice or clinic and 1 hospice, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mousa Matar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Matar practices, 15 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mousa Matar, MD | Available with a free account |
| +14 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mousa Matar is one of 16,751 internists in California
Internal medicine is Dr. Matar's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Matar's licenses on file in 2 states: California and Wisconsin.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Hospitalist, Wisconsin
Internists near Dr. Matar
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. Mousa Matar billed Medicare for 3,684 services in 2024
CMS data shows 3,684 Medicare services from Dr. Matar across 14 procedure codes in 2024, for 596 Medicare patients. Medicare paid $320,430 for them.
Dr. Matar's Medicare services by type, 2024
- Office and hospital visits3,612
- Other services47
- Tests and treatments25
Where Dr. Matar's Medicare services took place, 2024
- In an office45912%
- In a facility3,22588%
Dr. Matar compared with the California median for internists, 2024
- Dr. Matar
- California median
- Medicare services
- 3,684vs 36110.2 times
- Medicare patients
- 596vs 1513.9 times
- Part D claims
- 9,052vs 42121.5 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Matar's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Matar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Matar and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mousa Matar treated 596 Medicare patients in 2024, average age 76
CMS counts 596 Medicare patients who saw Dr. Matar in 2024. The largest group is 65 to 74, with 205 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 51% are also on Medicaid. Their average risk score is 2.92, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Matar's median patient age at 70, with 53% women.
Dr. Matar's Medicare patients by age, 2024
Dr. Matar's Medicare patients by sex, 2024
- Women34858%
- Men24842%
Chronic conditions among Dr. Matar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Diabetes49%
- Chronic kidney disease47%
- Mood disorders45%
- Depression40%
- Heart failure40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Matar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mousa Matar wrote 10,030 Medicare Part D claims in 2024
In 2024, Dr. Matar wrote 10,030 Medicare Part D claims for 771 patients. 85% of them were for generic drugs. CMS names the drug for 9,052 of them, across 171 drugs with 11 or more claims each, at $508,373 in total drug cost.
Dr. Matar's Part D claims by kind of drug, 2024
- Generic8,560 claims85%
- Brand-name1,441 claims14%
- Other29 claims0%
Dr. Matar'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. Matar's Part D claims, 2024
- Opioids1%114 of 10,030 claims
- Antibiotics4%364 of 10,030 claims
- Antipsychotics, patients 65 and over1%68 of 10,030 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Dr. Mousa Matar scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Matar for performance year 2024, reported as part of a group. Dr. Matar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Mousa Matar has 1 publication on record
Dmand AI links 1 paper to Dr. Matar. Dr. Matar's most frequent co-author is Jane Y. Bang, MD.
Dr. Matar's most frequent co-authors
Recent publications by Dr. Matar
See who Dr. Matar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Matar works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mousa Matar received $691 in industry payments from 2024 to 2025
CMS Open Payments shows 29 general payments to Dr. Matar from 12 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $220.
General payments to Dr. Matar by program year, 2024 to 2025
Companies that paid Dr. Matar the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mousa Matar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mousa Matar
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. Mousa Matar's NPI number?
Dr. Mousa Matar's NPI number is 1992116982. It was assigned on May 13, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Mousa Matar?
Dr. Mousa Matar is an internist in Riverside, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mousa Matar practice?
Dr. Matar practices at 4440 Brockton Ave Ste 100, Riverside, CA 92501-4026. Dr. Matar's primary practice is Mousa Matar, MD in Riverside, California. Dmand AI also links Dr. Matar to 1 hospital, 5 home health agencies, 5 skilled nursing facilities, 2 medical groups, 1 group practice or clinic and 1 hospice.
What is Dr. Mousa Matar's office phone number?
The practice phone on file for Dr. Matar is (773) 814-8200.
What is Dr. Mousa Matar's medical license number?
Dr. Matar holds California license A167764, one of the licenses on file in 2 states.
Which states has Dr. Mousa Matar been licensed in?
Dmand AI has state licenses on file for Dr. Matar in California and Wisconsin.
Which hospitals is Dr. Mousa Matar affiliated with?
Dr. Matar is affiliated with Riverside Community Hospital. Dmand AI links Dr. Matar to 1 more hospital.
What medical group is Dr. Mousa Matar part of?
Dr. Matar is linked to Quantum Healthcare Medical Associates Inc. Dmand AI links Dr. Matar to 2 more medical groups.
Does Dr. Mousa Matar accept Medicare?
Yes. CMS data shows Dr. Matar billed Medicare for 3,684 services in 2024, and Dr. Matar accepts Medicare assignment.
What is Dr. Mousa Matar's MIPS score?
Dr. Matar's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Mousa Matar see?
CMS counts 596 Medicare patients who saw Dr. Matar in 2024, with an average age of 76.
What services does Dr. Mousa Matar bill to Medicare?
In 2024, Dr. Matar's most billed Medicare services were nursing facility care (99309), hospital inpatient care (99232) and hospital inpatient care (99222).
What drugs does Dr. Mousa Matar prescribe most?
In 2024 Medicare Part D data, Dr. Matar's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Mousa Matar received payments from drug or device companies?
CMS Open Payments shows $691 in general payments to Dr. Matar from 12 companies from 2024 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Mousa Matar been practicing?
Dr. Matar graduated from medical school in 2012, 14 years ago.
Does Dr. Mousa Matar do research?
Dmand AI links 1 publication to Dr. Matar.
Who does Dr. Mousa Matar publish with?
Dr. Matar's most frequent co-authors are Jane Y. Bang, MD (1 shared paper).
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card