Dr. Atef Mousa, DO
- Medicare services, 2024
- 9,942
- Medicare patients, 2024
- 1,594
- Part D claims, 2024
- 20,326
- MIPS score, 2024
- 75
- Hospital affiliations
- 3
- Practice address
- 1600 W Ave J, Lancaster, CA 93534
- Practice phone
- Call (661) 949-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mousa'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. Atef Mousa is an internist in Lancaster, California
Dr. Mousa practices at Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District.
Dr. Mousa's NPI, 1891006565, was assigned on June 28, 2010. Dr. Mousa graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 2010. Dr. Mousa holds California license 20A12792.
- NPI
- 1891006565NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597993824
- NPI enumeration date
- June 28, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (661) 949-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Atef Mousa practices at Antelope Valley Medical Center in Lancaster, California
Dr. Mousa's primary practice is Antelope Valley Medical Center, at 1600 W Ave J, Lancaster, CA 93534 in Los Angeles County. The practice phone is (661) 949-5500.
- Antelope Valley Medical Center1600 W Ave J, Lancaster, CA 93534 · Los Angeles CountyPhone(661) 949-5500
Source: Dmand AI Affiliation Data
Dr. Atef Mousa is affiliated with 12 sites of care and 3 medical groups
Dr. Mousa's primary practice is Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District. Dr. Mousa is also affiliated with Ridgecrest Regional Hospital. The medical group on file is Horizon Multicare Group. Dmand AI also links Dr. Mousa to 1 more hospital, 5 home health agencies, 4 skilled nursing facilities and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Atef Mousa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mousa practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Antelope Valley Medical Center | Available with a free account |
| +11 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 Antelope Valley Healthcare District and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Atef Mousa is one of 16,751 internists in California
Internal medicine is Dr. Mousa's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Mousa is board certified in internal medicine by the AOA Board of Internal Medicine. Dr. Mousa is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute diabetes, acute respiratory failure, acute stomach ulcer, alcohol use disorders, aneurysm, anxiety, arthritis and asthma among the conditions Dr. Mousa treats.
Internists near Dr. Mousa
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. Atef Mousa billed Medicare for 9,942 services in 2024
CMS data shows 9,942 Medicare services from Dr. Mousa across 14 procedure codes in 2024, for 1,594 Medicare patients. Medicare paid $886,721 for them.
Dr. Mousa's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5,0192024: 9,08481%
- Tests and treatments
- 2023: 2502024: 606142%
- Other services
- 2023: 532024: 252375%
Where Dr. Mousa's Medicare services took place, 2024
- In an office1,11711%
- In a facility8,82589%
Dr. Mousa compared with the California median for internists, 2024
- Dr. Mousa
- California median
- Medicare services
- 9,942vs 36127.5 times
- Medicare patients
- 1,594vs 15110.6 times
- Part D claims
- 19,311vs 42145.9 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Mousa'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. Mousa?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mousa and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Atef Mousa treated 1,594 Medicare patients in 2024, average age 73
CMS counts 1,594 Medicare patients who saw Dr. Mousa in 2024. The largest group is 65 to 74, with 622 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 63% are also on Medicaid. Their average risk score is 2.77, 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. Mousa's median patient age at 67, with 50% women.
Dr. Mousa's Medicare patients by age, 2024
Dr. Mousa's Medicare patients by sex, 2024
- Women83853%
- Men75647%
Chronic conditions among Dr. Mousa's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis60%
- Diabetes57%
- COPD43%
- Heart failure43%
- Mood disorders42%
- Ischemic heart disease41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mousa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Atef Mousa wrote 20,326 Medicare Part D claims in 2024
In 2024, Dr. Mousa wrote 20,326 Medicare Part D claims for 936 patients. 80% of them were for generic drugs. CMS names the drug for 19,311 of them, across 254 drugs with 11 or more claims each, at $1,659,011 in total drug cost. In 2023, CMS named 13,809 claims across 218 drugs.
Dr. Mousa's Part D claims by kind of drug, 2024
- Generic16,180 claims80%
- Brand-name3,908 claims19%
- Other238 claims1%
Dr. Mousa'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. Mousa's Part D claims, 2024
- Opioids6%1,150 of 20,326 claims
- Antibiotics4%739 of 20,326 claims
- Antipsychotics, patients 65 and over2%306 of 20,326 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: 13,8092024: 19,31140%
Drugs named by CMS: 254 in 2024, 218 in 2023.
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. Atef Mousa 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. Mousa for performance year 2024, reported individually. Dr. Mousa accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mousa as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- 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
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Dr. Atef Mousa received $8,300 in industry payments from 2016 to 2025
CMS Open Payments shows 122 general payments to Dr. Mousa from 37 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $1,625.
General payments to Dr. Mousa by program year, 2016 to 2025
Companies that paid Dr. Mousa the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Atef Mousa graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury
Dr. Mousa graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 2010. Dr. Mousa is a member of AOA.
- Medical school
- Board certified in internal medicine
- Board certified in 2013 - 2026
Source: Dmand AI Professional Profile Data
Dr. Atef Mousa accepts plans from 14 insurance carriers
Dr. Mousa is in network with 14 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +6 more carriersWith a free account
Plan types Dr. Mousa accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO5
- POS5
Source: Dmand AI Insurance Network Data
Sources for Dr. Atef Mousa'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 DataDmand AI Org Hierarchy 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Atef Mousa
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. Atef Mousa's NPI number?
Dr. Atef Mousa's NPI number is 1891006565. It was assigned on June 28, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Atef Mousa?
Dr. Atef Mousa is an internist in Lancaster, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Atef Mousa practice?
Dr. Mousa practices at 1600 W Ave J, Lancaster, CA 93534. Dr. Mousa's primary practice is Antelope Valley Medical Center in Lancaster, California, part of Antelope Valley Healthcare District. Dmand AI also links Dr. Mousa to 1 hospital, 5 home health agencies, 4 skilled nursing facilities and 2 medical groups.
What is Dr. Atef Mousa's office phone number?
The practice phone on file for Dr. Mousa is (661) 949-5500.
What is Dr. Atef Mousa's medical license number?
Dr. Mousa holds California license 20A12792.
Which hospitals is Dr. Atef Mousa affiliated with?
Dr. Mousa practices at Antelope Valley Medical Center in Lancaster, California. Dr. Mousa is also affiliated with Ridgecrest Regional Hospital. Dmand AI links Dr. Mousa to 1 more hospital.
What medical group is Dr. Atef Mousa part of?
Dr. Mousa is linked to Horizon Multicare Group. Dmand AI links Dr. Mousa to 2 more medical groups.
Does Dr. Atef Mousa accept Medicare?
Yes. CMS data shows Dr. Mousa billed Medicare for 9,942 services in 2024, and Dr. Mousa accepts Medicare assignment.
Does Dr. Atef Mousa offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mousa as offering telehealth services.
What is Dr. Atef Mousa's MIPS score?
Dr. Mousa's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Atef Mousa see?
CMS counts 1,594 Medicare patients who saw Dr. Mousa in 2024, with an average age of 73.
Is Dr. Atef Mousa board certified?
Yes. Dr. Mousa is board certified in internal medicine by the AOA Board of Internal Medicine.
What services does Dr. Atef Mousa bill to Medicare?
In 2024, Dr. Mousa's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and nursing facility care (99309).
Where did Dr. Atef Mousa go to medical school?
Dr. Mousa graduated from New York Institute of Technology College of Osteopathic Medicine - Old Westbury in 2010.
What drugs does Dr. Atef Mousa prescribe most?
In 2024 Medicare Part D data, Dr. Mousa's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Amlodipine Besylate.
Has Dr. Atef Mousa received payments from drug or device companies?
CMS Open Payments shows $8,300 in general payments to Dr. Mousa from 37 companies from 2016 to 2025. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Atef Mousa been practicing?
Dr. Mousa graduated from medical school in 2010, 16 years ago.
What insurance does Dr. Atef Mousa accept?
Dr. Mousa is in network with 14 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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