Dr. Cesar A. Quan, MD
- Medicare services, 2024
- 14
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 8,478
- Hospital affiliations
- 1
- Industry payments
- $150
- Practice address
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Practice phone
- Call (619) 528-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Permanente San Diego Medical Center
San Diego, California
Find Dr. Quan'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. Cesar A. Quan is a family medicine physician in San Diego, California
Dr. Quan practices at Kaiser Permanente San Diego Medical Center in San Diego, California.
Dr. Quan's NPI, 1912055799, was assigned on January 8, 2007. Dr. Quan graduated from Keck School of Medicine of USC in 1994. Dr. Quan holds California license A60011.
- NPI
- 1912055799NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618048133
- NPI enumeration date
- January 8, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 528-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cesar A. Quan practices at Kaiser Permanente San Diego Medical Center in San Diego, California
Dr. Quan's primary practice is Kaiser Permanente San Diego Medical Center, at 9455 Clairemont Mesa Blvd, San Diego, CA 92123 in San Diego County. The practice phone is (619) 528-5000.
- Kaiser Permanente San Diego Medical Center9455 Clairemont Mesa Blvd, San Diego, CA 92123 · San Diego CountyPhone(619) 528-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Cesar A. Quan is affiliated with 2 sites of care and 1 medical group
Dr. Quan's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California. Dr. Quan is also affiliated with Kaiser Permanente Zion Medical Center. The medical group on file is Southern California Permanente Medical Group.
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. Cesar A. Quan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Quan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente San Diego 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. Cesar A. Quan is one of 15,680 family medicine physicians in California
Family medicine is Dr. Quan's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Quan is board certified in family medicine by the American Board of Family Medicine. Dr. Quan is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic hypertension, diabetic emergency, tobacco use and UTI among the conditions Dr. Quan treats.
Family medicine physicians near Dr. Quan
Counts of family 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. Cesar A. Quan billed Medicare for 14 services in 2024
CMS data shows 14 Medicare services from Dr. Quan across 1 procedure code in 2024, all of them office visits, for 15 Medicare patients. Medicare paid $981 for them. Every service was in an office.
Dr. Quan's Medicare services by type, 2020 to 2024
- 2020
- 2024
- Office and hospital visits
- 2020: 192024: 1426%
Dr. Quan compared with the California median for family medicine physicians, 2024
- Dr. Quan
- California median
- Medicare services
- 14vs 24694% below
- Medicare patients
- 15vs 11887% below
- Part D claims
- 7,930vs 8339.5 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Quan'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. Quan and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Cesar A. Quan treated 15 Medicare patients in 2024, average age 67
CMS counts 15 Medicare patients who saw Dr. Quan in 2024. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Quan's median patient age at 66, with 50% women.
Dr. Quan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
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. Cesar A. Quan wrote 8,478 Medicare Part D claims in 2024
In 2024, Dr. Quan wrote 8,478 Medicare Part D claims for 1,541 patients. 90% of them were for generic drugs. CMS names the drug for 7,930 of them, across 107 drugs with 11 or more claims each, at $305,922 in total drug cost. In 2023, CMS named 7,428 claims across 97 drugs.
Dr. Quan's Part D claims by kind of drug, 2024
- Generic7,633 claims90%
- Brand-name744 claims9%
- Other101 claims1%
Dr. Quan'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. Quan's Part D claims, 2024
- Opioids5%400 of 8,478 claims
- Antibiotics2%140 of 8,478 claims
- Antipsychotics, patients 65 and over0%19 of 8,478 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: 7,4282024: 7,9307%
Drugs named by CMS: 107 in 2024, 97 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. Cesar A. Quan takes part in Medicare
Dr. Quan 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. Cesar A. Quan received $150 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Quan from 1 drug or device company in 2025. Speaker and faculty fees make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $150.
Companies that paid Dr. Quan the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cesar A. Quan graduated from Keck School of Medicine of USC
Dr. Quan graduated from Keck School of Medicine of USC in 1994.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Cesar A. Quan accepts plans from 2 insurance carriers
Dr. Quan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Quan accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Cesar A. Quan'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) |
| 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. Cesar A. Quan
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. Cesar A. Quan's NPI number?
Dr. Cesar A. Quan's NPI number is 1912055799. It was assigned on January 8, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Cesar A. Quan?
Dr. Cesar A. Quan is a family medicine physician in San Diego, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Cesar A. Quan practice?
Dr. Quan practices at 9455 Clairemont Mesa Blvd, San Diego, CA 92123. Dr. Quan's primary practice is Kaiser Permanente San Diego Medical Center in San Diego, California.
What is Dr. Cesar A. Quan's office phone number?
The practice phone on file for Dr. Quan is (619) 528-5000.
What is Dr. Cesar A. Quan's medical license number?
Dr. Quan holds California license A60011.
Which hospitals is Dr. Cesar A. Quan affiliated with?
Dr. Quan is affiliated with Kaiser Permanente Zion Medical Center.
What medical group is Dr. Cesar A. Quan part of?
Dr. Quan is linked to Southern California Permanente Medical Group.
Does Dr. Cesar A. Quan accept Medicare?
Yes. CMS data shows Dr. Quan billed Medicare for 14 services in 2024, and Dr. Quan accepts Medicare assignment.
How many Medicare patients does Dr. Cesar A. Quan see?
CMS counts 15 Medicare patients who saw Dr. Quan in 2024, with an average age of 67.
Is Dr. Cesar A. Quan board certified?
Yes. Dr. Quan is board certified in family medicine by the American Board of Family Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Cesar A. Quan bill to Medicare?
In 2024, Dr. Quan's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Cesar A. Quan go to medical school?
Dr. Quan graduated from Keck School of Medicine of USC in 1994.
What drugs does Dr. Cesar A. Quan prescribe most?
In 2024 Medicare Part D data, Dr. Quan's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Simvastatin.
Has Dr. Cesar A. Quan received payments from drug or device companies?
CMS Open Payments shows $150 in general payments to Dr. Quan from 1 company from 2025 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Cesar A. Quan been practicing?
Dr. Quan graduated from medical school in 1994, 32 years ago.
What insurance does Dr. Cesar A. Quan accept?
Dr. Quan is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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