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Dr. Omar A. Mesarwi, MD
- Medicare services, 2024
- 286
- Medicare patients, 2024
- 141
- Part D claims, 2024
- 21
- Publications
- 28
- MIPS score, 2024
- 91
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Dr. Mesarwi'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. Omar A. Mesarwi is a sleep medicine (internal medicine) physician in San Diego, California
Dr. Mesarwi practices at UCSD Hillcrest Medical Center in San Diego, California.
Dr. Mesarwi's NPI, 1245430032, was assigned on July 20, 2007. Dr. Mesarwi graduated from UT Southwestern Medical Center in 2007. Dr. Mesarwi holds California license A144727.
- NPI
- 1245430032NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496937062
- NPI enumeration date
- July 20, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (619) 543-6222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Omar A. Mesarwi practices at UCSD Hillcrest Medical Center in San Diego, California
Dr. Mesarwi's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Omar A. Mesarwi is affiliated with 2 sites of care and 1 medical group
Dr. Mesarwi's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Mesarwi is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Omar A. Mesarwi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mesarwi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Omar A. Mesarwi is one of 115 sleep medicine (internal medicine) physicians in California
Internal medicine is Dr. Mesarwi's primary specialty in the NPI Registry, under taxonomy code 207RS0012X. The record also lists sleep medicine. Dr. Mesarwi is board certified in critical care medicine by the American Board of Internal Medicine. Dmand AI has Dr. Mesarwi's licenses on file in 3 states: California, Maryland and Texas.
Specialties and state licenses
- Sleep medicine (internal medicine), CaliforniaPrimary
- Maryland license
- Texas license
Sleep medicine (internal medicine) physicians near Dr. Mesarwi
Counts of sleep medicine (internal medicine) physicians 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. Omar A. Mesarwi billed Medicare for 286 services in 2024
CMS data shows 286 Medicare services from Dr. Mesarwi across 7 procedure codes in 2024, for 141 Medicare patients. Medicare paid $31,524 for them.
Dr. Mesarwi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1872024: 1986%
- Tests and treatments
- 2023: 552024: 4813%
- Other services
- 2023: 392024: 403%
Where Dr. Mesarwi's Medicare services took place, 2024
- In an office16558%
- In a facility12142%
Dr. Mesarwi compared with the California median for sleep medicine (internal medicine) physicians, 2024
- Dr. Mesarwi
- California median
- Medicare services
- 286vs 45437% below
- Medicare patients
- 141vs 25545% below
- Part D claims
- 13vs 12490% below
Medians across 111 sleep medicine (internal medicine) physicians in California with Dmand AI profiles that report each measure.
Dr. Mesarwi'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mesarwi and other sleep medicine (internal medicine) physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Omar A. Mesarwi treated 141 Medicare patients in 2024, average age 71
CMS counts 141 Medicare patients who saw Dr. Mesarwi in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.09, 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. Mesarwi's median patient age at 57, with 40% women.
Dr. Mesarwi's Medicare patients by age, 2024
Dr. Mesarwi's Medicare patients by sex, 2024
- Women7251%
- Men6949%
Chronic conditions among Dr. Mesarwi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis44%
- Mood disorders43%
- Depression38%
- Diabetes35%
- Chronic kidney disease34%
- Ischemic heart disease31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mesarwi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women40%
- Men59%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Omar A. Mesarwi wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Mesarwi wrote 21 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $899 in total drug cost. In 2020, CMS named 11 claims across 1 drug.
Dr. Mesarwi'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.
Part D claims for drugs CMS names, 2020 to 2024
- 2020
- 2024
- Claims for drugs CMS names
- 2020: 112024: 1318%
Drugs named by CMS: 1 in 2024, 1 in 2020.
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. Omar A. Mesarwi scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Mesarwi for performance year 2024, reported as part of a group. Dr. Mesarwi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mesarwi as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Mesarwi's MIPS scores, performance year 2024
- 91of 100Final score
- 84.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
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. Omar A. Mesarwi has 28 publications on record
Dmand AI links 28 papers to Dr. Mesarwi, published from 2014 to 2024. 2022 was the busiest year, with 3. The most frequent topics are Sleep Apnea, Obstructive, Hypoxia and Disease Models, Animal. Dr. Mesarwi has published most often in J Clin Sleep Med. Dr. Mesarwi's most frequent co-authors are Atul Malhotra, MD, Vsevolod Y. Polotsky, MD and Luu Van Pham, MD.
Dr. Mesarwi's papers by year, 2014 to 2024
Topics Dr. Mesarwi writes about most
- Sleep Apnea, Obstructive
- Hypoxia
- Disease Models, Animal
- Non-alcoholic Fatty Liver Disease
- Hypertension
- Mice, Inbred C57BL
- Sleep Apnea Syndromes
- Altitude
Dr. Mesarwi's most frequent co-authors
- Atul Malhotra, MD10 shared papers
- Vsevolod Y. Polotsky, MD6 shared papers
- Luu Van Pham, MD3 shared papers
Recent publications by Dr. Mesarwi
See who Dr. Mesarwi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mesarwi works with, so you can find a warm path to the right sleep medicine (internal medicine) physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Omar A. Mesarwi received $412 in industry payments from 2019 to 2023
CMS Open Payments shows 4 general payments to Dr. Mesarwi from 4 drug and device companies from 2019 to 2023. Food and beverage make up the largest share, 77% of the total. ZOLL Respicardia, Inc. paid the most, $141.
General payments to Dr. Mesarwi by program year, 2019 to 2023
General payments to Dr. Mesarwi by kind, 2019 to 2023
- Food and beverage$31777%
- Education$9523%
Companies that paid Dr. Mesarwi the most, 2019 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Omar A. Mesarwi graduated from UT Southwestern Medical Center
Dr. Mesarwi graduated from UT Southwestern Medical Center in 2007. Dr. Mesarwi is a member of AASM, ACCP and ATS.
- Medical school
- Board certified in critical care medicine
- Board certified in pulmonary disease
- Board certified in sleep medicine
Source: Dmand AI Professional Profile Data
Dr. Omar A. Mesarwi accepts plans from 15 insurance carriers
Dr. Mesarwi is in network with 15 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Molina
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. Mesarwi accepts, by number of carriers
- PPO9
- HMO7
- Medicare7
- EPO3
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Omar A. Mesarwi'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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) |
| 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. Omar A. Mesarwi
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. Omar A. Mesarwi's NPI number?
Dr. Omar A. Mesarwi's NPI number is 1245430032. It was assigned on July 20, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Omar A. Mesarwi?
Dr. Omar A. Mesarwi is a sleep medicine (internal medicine) physician in San Diego, California. The primary specialty in the NPI Registry is Sleep Medicine (Internal Medicine) Physician (taxonomy code 207RS0012X).
Where does Dr. Omar A. Mesarwi practice?
Dr. Mesarwi practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Mesarwi's primary practice is UCSD Hillcrest Medical Center in San Diego, California.
What is Dr. Omar A. Mesarwi's office phone number?
The practice phone on file for Dr. Mesarwi is (619) 543-6222.
What is Dr. Omar A. Mesarwi's medical license number?
Dr. Mesarwi holds California license A144727, one of the licenses on file in 3 states.
Which states has Dr. Omar A. Mesarwi been licensed in?
Dmand AI has state licenses on file for Dr. Mesarwi in California (2016 to 2026), Maryland (2012 to 2017) and Texas (2009 to 2011).
Which hospitals is Dr. Omar A. Mesarwi affiliated with?
Dr. Mesarwi is affiliated with Hillcrest Medical Center.
What medical group is Dr. Omar A. Mesarwi part of?
Dr. Mesarwi is linked to UC San Diego Health.
Does Dr. Omar A. Mesarwi accept Medicare?
Yes. CMS data shows Dr. Mesarwi billed Medicare for 286 services in 2024, and Dr. Mesarwi accepts Medicare assignment.
Does Dr. Omar A. Mesarwi offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mesarwi as offering telehealth services.
Show 11 more questionsShow fewer questions
What is Dr. Omar A. Mesarwi's MIPS score?
Dr. Mesarwi's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Omar A. Mesarwi see?
CMS counts 141 Medicare patients who saw Dr. Mesarwi in 2024, with an average age of 71.
Is Dr. Omar A. Mesarwi board certified?
Yes. Dr. Mesarwi is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. Omar A. Mesarwi bill to Medicare?
In 2024, Dr. Mesarwi's most billed Medicare services were critical care (99291), office visit, established patient (99214) and nerve and brain test (95806).
Where did Dr. Omar A. Mesarwi go to medical school?
Dr. Mesarwi graduated from UT Southwestern Medical Center in 2007.
What drugs does Dr. Omar A. Mesarwi prescribe most?
In 2024 Medicare Part D data, Dr. Mesarwi's most prescribed drugs by claims were Eszopiclone.
Has Dr. Omar A. Mesarwi received payments from drug or device companies?
CMS Open Payments shows $412 in general payments to Dr. Mesarwi from 4 companies from 2019 to 2023. The largest total came from ZOLL Respicardia, Inc.
How long has Dr. Omar A. Mesarwi been practicing?
Dr. Mesarwi graduated from medical school in 2007, 19 years ago.
Does Dr. Omar A. Mesarwi do research?
Dmand AI links 28 publications to Dr. Mesarwi, published from 2014 to 2024.
Who does Dr. Omar A. Mesarwi publish with?
Dr. Mesarwi's most frequent co-authors are Atul Malhotra, MD (10 shared papers), Vsevolod Y. Polotsky, MD (6 shared papers) and Luu Van Pham, MD (3 shared papers).
What insurance does Dr. Omar A. Mesarwi accept?
Dr. Mesarwi is in network with 15 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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