Dr. Nicolas E. Nassar, MD
- Medicare services, 2024
- 10,581
- Medicare patients, 2024
- 597
- Part D claims, 2024
- 1,211
- Publications
- 2
- MIPS score, 2024
- 83
- Practice address
- 14122 Hubbard Street, Sylmar, CA 91342
- Practice phone
- Call (818) 361-0191
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Grove Post-Acute Care Center
Skilled Nursing Facility · Sylmar, California
Find Dr. Nassar'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. Nicolas E. Nassar is a pulmonologist in Sylmar, California
Dr. Nassar practices at The Grove Post-Acute Care Center in Sylmar, California.
Dr. Nassar's NPI, 1104851609, was assigned on July 12, 2006. Dr. Nassar graduated from American University of Beirut Faculty of Medicine in 1995. Dr. Nassar holds California license A76218.
- NPI
- 1104851609NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0446155089
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 361-0191
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicolas E. Nassar practices at The Grove Post-Acute Care Center in Sylmar, California
Dr. Nassar's primary practice is The Grove Post-Acute Care Center, at 14122 Hubbard Street, Sylmar, CA 91342 in Los Angeles County. The practice phone is (818) 361-0191.
- The Grove Post-Acute Care Center14122 Hubbard Street, Sylmar, CA 91342 · Los Angeles CountyPhone(818) 361-0191
Source: Dmand AI Affiliation Data
Dr. Nicolas E. Nassar is affiliated with 4 sites of care
Dr. Nassar's primary practice is The Grove Post-Acute Care Center in Sylmar, California. Dr. Nassar is also affiliated with Dignity Health - St. Bernardine Medical Center. Dmand AI also links Dr. Nassar to 2 more hospitals, each named with a free account. Dr. Nassar's employer is on file too: a skilled nursing facility.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nicolas E. Nassar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nassar practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Grove Post-Acute Care Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicolas E. Nassar is one of 1,339 pulmonologists in California
Pulmonary disease is Dr. Nassar's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Nassar is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Nassar's licenses on file in 5 states: California, Maryland, Pennsylvania, Minnesota and Alabama.
Specialties and state licenses
- Pulmonary disease, CaliforniaPrimary
- Maryland license
- Pennsylvania license
- Minnesota license
- Alabama license
Clinical focus
Dmand AI lists asthma, chronic obstructive pulmonary disease (COPD), chronic respiratory failure and pleural effusion among the conditions Dr. Nassar treats.
Pulmonologists near Dr. Nassar
Counts of pulmonologists 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. Nicolas E. Nassar billed Medicare for 10,581 services in 2024
CMS data shows 10,581 Medicare services from Dr. Nassar across 8 procedure codes in 2024, for 597 Medicare patients. Medicare paid $737,615 for them.
Dr. Nassar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6,3772024: 10,58166%
Where Dr. Nassar's Medicare services took place, 2024
- In an office9,79993%
- In a facility7827%
Dr. Nassar compared with the California median for pulmonologists, 2024
- Dr. Nassar
- California median
- Medicare services
- 10,581vs 64916.3 times
- Medicare patients
- 597vs 2722.2 times
- Part D claims
- 1,131vs 4212.7 times
Medians across 1,263 pulmonologists in California with Dmand AI profiles that report each measure.
Dr. Nassar'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. Nassar and other pulmonologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicolas E. Nassar treated 597 Medicare patients in 2024, average age 73
CMS counts 597 Medicare patients who saw Dr. Nassar in 2024. The largest group is 65 to 74, with 254 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 92% are also on Medicaid. Their average risk score is 4.01, 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. Nassar's median patient age at 69, with 47% women.
Dr. Nassar's Medicare patients by age, 2024
Dr. Nassar's Medicare patients by sex, 2024
- Women30852%
- Men28948%
Chronic conditions among Dr. Nassar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- COPD66%
- Mood disorders62%
- Diabetes61%
- Heart failure60%
- Anxiety57%
- Depression54%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nassar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicolas E. Nassar wrote 1,211 Medicare Part D claims in 2024
In 2024, Dr. Nassar wrote 1,211 Medicare Part D claims for 177 patients. 69% of them were for generic drugs. CMS names the drug for 1,131 of them, across 27 drugs with 11 or more claims each, at $101,425 in total drug cost. In 2023, CMS named 1,006 claims across 19 drugs.
Dr. Nassar's Part D claims by kind of drug, 2024
- Generic834 claims69%
- Brand-name377 claims31%
Dr. Nassar'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. Nassar's Part D claims, 2024
- Antibiotics3%41 of 1,211 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: 1,0062024: 1,13112%
Drugs named by CMS: 27 in 2024, 19 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. Nicolas E. Nassar scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Nassar for performance year 2024, reported individually. Dr. Nassar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Nassar's MIPS scores, performance year 2024
- 83of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
- 10of 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. Nicolas E. Nassar has 2 publications on record
Dmand AI links 2 papers to Dr. Nassar, published from 2013 to 2018.
Recent publications by Dr. Nassar
See who Dr. Nassar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nassar works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nicolas E. Nassar received $32 in industry payments from 2017 to 2022
CMS Open Payments shows 2 general payments to Dr. Nassar from 2 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 57% of the total. Astellas Pharma US Inc paid the most, $18.
General payments to Dr. Nassar by program year, 2017 to 2022
General payments to Dr. Nassar by kind, 2017 to 2022
- Food and beverage$1857%
- Education$1443%
Companies that paid Dr. Nassar the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nicolas E. Nassar graduated from American University of Beirut Faculty of Medicine
Dr. Nassar graduated from American University of Beirut Faculty of Medicine in 1995.
- Medical school
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Nicolas E. Nassar accepts plans from 10 insurance carriers
Dr. Nassar is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- LA Care
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- +2 more carriersWith a free account
Plan types Dr. Nassar accepts, by number of carriers
- Medicare9
- HMO5
- PPO5
- POS3
- Medicaid2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nicolas E. Nassar'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) |
| 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. Nicolas E. Nassar
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. Nicolas E. Nassar's NPI number?
Dr. Nicolas E. Nassar's NPI number is 1104851609. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicolas E. Nassar?
Dr. Nicolas E. Nassar is a pulmonologist in Sylmar, California. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Nicolas E. Nassar practice?
Dr. Nassar practices at 14122 Hubbard Street, Sylmar, CA 91342. Dr. Nassar's primary practice is The Grove Post-Acute Care Center in Sylmar, California. Dmand AI also links Dr. Nassar to 2 hospitals.
What is Dr. Nicolas E. Nassar's office phone number?
The practice phone on file for Dr. Nassar is (818) 361-0191.
What is Dr. Nicolas E. Nassar's medical license number?
Dr. Nassar holds California license A76218, one of the licenses on file in 5 states.
Which states has Dr. Nicolas E. Nassar been licensed in?
Dmand AI has state licenses on file for Dr. Nassar in California (2001 to 2026), Maryland (2002 to 2003), Pennsylvania (1999 to 2002), Minnesota (2001) and Alabama (1999).
Which hospitals is Dr. Nicolas E. Nassar affiliated with?
Dr. Nassar is affiliated with Dignity Health - St. Bernardine Medical Center. Dmand AI links Dr. Nassar to 2 more hospitals.
Does Dr. Nicolas E. Nassar accept Medicare?
Yes. CMS data shows Dr. Nassar billed Medicare for 10,581 services in 2024, and Dr. Nassar accepts Medicare assignment.
What is Dr. Nicolas E. Nassar's MIPS score?
Dr. Nassar's MIPS final score for performance year 2024 is 83 out of 100, reported individually.
How many Medicare patients does Dr. Nicolas E. Nassar see?
CMS counts 597 Medicare patients who saw Dr. Nassar in 2024, with an average age of 73.
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Is Dr. Nicolas E. Nassar board certified?
Yes. Dr. Nassar is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Nicolas E. Nassar bill to Medicare?
In 2024, Dr. Nassar's most billed Medicare services were nursing facility care (99308), nursing facility care (99309) and hospital inpatient care (99233).
Where did Dr. Nicolas E. Nassar go to medical school?
Dr. Nassar graduated from American University of Beirut Faculty of Medicine in 1995.
What drugs does Dr. Nicolas E. Nassar prescribe most?
In 2024 Medicare Part D data, Dr. Nassar's most prescribed drugs by claims were Albuterol Sulfate Hfa, Ipratropium-Albuterol and Chlorhexidine Gluconate.
Has Dr. Nicolas E. Nassar received payments from drug or device companies?
CMS Open Payments shows $32 in general payments to Dr. Nassar from 2 companies from 2017 to 2022. The largest total came from Astellas Pharma US Inc.
How long has Dr. Nicolas E. Nassar been practicing?
Dr. Nassar graduated from medical school in 1995, 31 years ago.
Does Dr. Nicolas E. Nassar do research?
Dmand AI links 2 publications to Dr. Nassar, published from 2013 to 2018.
What insurance does Dr. Nicolas E. Nassar accept?
Dr. Nassar is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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