Dr. Bassam K. Nassir, MD
- Medicare services, 2024
- 243
- Medicare patients, 2024
- 130
- Part D claims, 2024
- 7,644
- Hospital affiliations
- 2
- Industry payments
- $197
- Practice address
- 436 S Magnolia Ave, El Cajon, CA 92020
- Practice phone
- Call (619) 662-4100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Ysidro Health El Cajon/San Diego Pace
El Cajon, California
Find Dr. Nassir's professional email, personal email and mobile number
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Dr. Bassam K. Nassir is an internist in El Cajon, California
Dr. Nassir practices at San Ysidro Health El Cajon/San Diego Pace in El Cajon, California.
Dr. Nassir's NPI, 1386848166, was assigned on June 13, 2007. Dr. Nassir graduated from University of Baghdad College of Medicine in 1987. Dr. Nassir holds California license A101888.
- NPI
- 1386848166NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577700525
- NPI enumeration date
- June 13, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 662-4100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bassam K. Nassir practices at San Ysidro Health El Cajon/San Diego Pace in El Cajon, California
Dr. Nassir's primary practice is San Ysidro Health El Cajon/San Diego Pace, at 436 S Magnolia Ave, El Cajon, CA 92020 in San Diego County. The practice phone is (619) 662-4100.
- San Ysidro Health El Cajon/San Diego Pace436 S Magnolia Ave, El Cajon, CA 92020 · San Diego CountyPhone(619) 662-4100
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Bassam K. Nassir is affiliated with 3 sites of care and 1 medical group
Dr. Nassir's primary practice is San Ysidro Health El Cajon/San Diego Pace in El Cajon, California. Dr. Nassir is also affiliated with Sharp Memorial Hospital. The medical group on file is San Ysidro Health. Dmand AI also links Dr. Nassir to 1 more hospital, named with a free account.
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. Bassam K. Nassir's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nassir practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Ysidro Health El Cajon/San Diego Pace | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Bassam K. Nassir is one of 16,751 internists in California
Internal medicine is Dr. Nassir's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nassir is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Nassir's licenses on file in 2 states: California and New Jersey.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- New Jersey license
Clinical focus
Dmand AI lists acid reflux, alzheimer's disease, chronic anemia, chronic diabetes, chronic hypertension, chronic kidney disease, chronic obstructive pulmonary disease (COPD) and coronary artery disease among the conditions Dr. Nassir treats.
Internists near Dr. Nassir
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. Bassam K. Nassir billed Medicare for 243 services in 2024
CMS data shows 243 Medicare services from Dr. Nassir across 2 procedure codes in 2024, for 130 Medicare patients. Medicare paid $2,026 for them. Every service was in an office.
Dr. Nassir's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2902024: 22921%
- Lab and pathology
- 2023: 02024: 14
Dr. Nassir compared with the California median for internists, 2024
- Dr. Nassir
- California median
- Medicare services
- 243vs 36133% below
- Medicare patients
- 130vs 15114% below
- Part D claims
- 7,271vs 42117.3 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Nassir'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. Nassir?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nassir and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bassam K. Nassir treated 130 Medicare patients in 2024, average age 74
CMS counts 130 Medicare patients who saw Dr. Nassir in 2024. The largest group is 65 to 74, with 73 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nassir's median patient age at 64, with 60% women.
Dr. Nassir's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Nassir's Medicare patients by sex, 2024
- Women8062%
- Men5038%
Chronic conditions among Dr. Nassir's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Diabetes46%
- Osteoporosis28%
- Chronic kidney disease26%
- Mood disorders26%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nassir's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bassam K. Nassir wrote 7,644 Medicare Part D claims in 2024
In 2024, Dr. Nassir wrote 7,644 Medicare Part D claims for 207 patients. 88% of them were for generic drugs. CMS names the drug for 7,271 of them, across 93 drugs with 11 or more claims each, at $335,123 in total drug cost. In 2023, CMS named 5,767 claims across 81 drugs.
Dr. Nassir's Part D claims by kind of drug, 2024
- Generic6,746 claims88%
- Brand-name816 claims11%
- Other82 claims1%
Dr. Nassir'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. Nassir's Part D claims, 2024
- Antibiotics0%13 of 7,644 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: 5,7672024: 7,27126%
Drugs named by CMS: 93 in 2024, 81 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
How Dr. Bassam K. Nassir takes part in Medicare
Dr. Nassir accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Bassam K. Nassir received $197 in industry payments from 2017 to 2025
CMS Open Payments shows 6 general payments to Dr. Nassir from 6 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $89.
General payments to Dr. Nassir by program year, 2017 to 2025
General payments to Dr. Nassir by kind, 2017 to 2025
- Food and beverage$196100%
- Education$10%
Companies that paid Dr. Nassir the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Bassam K. Nassir has 1 award and honors on record
Dmand AI lists 1 award for Dr. Nassir, most recently NCQA PCMH in 2016.
Awards and honors for Dr. Nassir
- 2016
- NCQA PCMH
Source: Dmand AI Professional Profile Data
Dr. Bassam K. Nassir graduated from University of Baghdad College of Medicine
Dr. Nassir graduated from University of Baghdad College of Medicine in 1987.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Bassam K. Nassir accepts plans from 11 insurance carriers
Dr. Nassir is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Molina
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +3 more carriersWith a free account
Plan types Dr. Nassir accepts, by number of carriers
- HMO7
- PPO6
- Medicare4
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Bassam K. Nassir'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Bassam K. Nassir
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. Bassam K. Nassir's NPI number?
Dr. Bassam K. Nassir's NPI number is 1386848166. It was assigned on June 13, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Bassam K. Nassir?
Dr. Bassam K. Nassir is an internist in El Cajon, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Bassam K. Nassir practice?
Dr. Nassir practices at 436 S Magnolia Ave, El Cajon, CA 92020. Dr. Nassir's primary practice is San Ysidro Health El Cajon/San Diego Pace in El Cajon, California. Dmand AI also links Dr. Nassir to 1 hospital.
What is Dr. Bassam K. Nassir's office phone number?
The practice phone on file for Dr. Nassir is (619) 662-4100.
What is Dr. Bassam K. Nassir's medical license number?
Dr. Nassir holds California license A101888, one of the licenses on file in 2 states.
Which states has Dr. Bassam K. Nassir been licensed in?
Dmand AI has state licenses on file for Dr. Nassir in California (2007 to 2027) and New Jersey (2006 to 2010).
Which hospitals is Dr. Bassam K. Nassir affiliated with?
Dr. Nassir is affiliated with Sharp Memorial Hospital. Dmand AI links Dr. Nassir to 1 more hospital.
What medical group is Dr. Bassam K. Nassir part of?
Dr. Nassir is linked to San Ysidro Health.
Does Dr. Bassam K. Nassir accept Medicare?
Yes. CMS data shows Dr. Nassir billed Medicare for 243 services in 2024, and Dr. Nassir accepts Medicare assignment.
How many Medicare patients does Dr. Bassam K. Nassir see?
CMS counts 130 Medicare patients who saw Dr. Nassir in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Dr. Bassam K. Nassir board certified?
Yes. Dr. Nassir is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Bassam K. Nassir bill to Medicare?
In 2024, Dr. Nassir's most billed Medicare services were surgery: heart and blood vessels (36415) and lab and pathology test (82962).
Where did Dr. Bassam K. Nassir go to medical school?
Dr. Nassir graduated from University of Baghdad College of Medicine in 1987.
What drugs does Dr. Bassam K. Nassir prescribe most?
In 2024 Medicare Part D data, Dr. Nassir's most prescribed drugs by claims were Lisinopril, Simvastatin and Amlodipine Besylate.
Has Dr. Bassam K. Nassir received payments from drug or device companies?
CMS Open Payments shows $197 in general payments to Dr. Nassir from 6 companies from 2017 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Bassam K. Nassir been practicing?
Dr. Nassir graduated from medical school in 1987, 39 years ago.
What insurance does Dr. Bassam K. Nassir accept?
Dr. Nassir is in network with 11 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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