Dr. Robert S. Lee, MD
- Medicare services, 2024
- 580
- Medicare patients, 2024
- 191
- Part D claims, 2024
- 217
- Hospital affiliations
- 1
- Industry payments
- $85
- Practice address
- 4002 Vista Way, Oceanside, CA 92056
- Practice phone
- Call (760) 724-8411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lee's professional email, personal email and mobile number
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Dr. Robert S. Lee is an internist in Oceanside, California
Dr. Lee practices at Sharp Tri-City Medical Center in Oceanside, California, part of Sharp HealthCare.
Dr. Lee's NPI, 1528081155, was assigned on July 25, 2006. Dr. Lee graduated from Tufts University School Of Medicine in 2003. Dr. Lee holds California license A89811.
- NPI
- 1528081155NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638271489
- NPI enumeration date
- July 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 724-8411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert S. Lee practices at Sharp Tri-City Medical Center in Oceanside, California
Dr. Lee's primary practice is Sharp Tri-City Medical Center, at 4002 Vista Way, Oceanside, CA 92056 in San Diego County. The practice phone is (760) 724-8411.
- Sharp Tri-City Medical Center4002 Vista Way, Oceanside, CA 92056 · San Diego CountyPhone(760) 724-8411
Source: Dmand AI Affiliation Data
Dr. Robert S. Lee is affiliated with 1 site of care and 3 medical groups
Dr. Lee's primary practice is Sharp Tri-City Medical Center in Oceanside, California, part of Sharp HealthCare. The medical group on file is Inpatient Specialist of California PC. Dmand AI also links Dr. Lee to 2 more 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. Robert S. Lee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sharp Tri-City Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert S. Lee is one of 16,751 internists in California
Internal medicine is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lee is board certified in internal medicine by the American Board of Internal Medicine. Dr. Lee is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute respiratory failure, cardiac arrhythmia, congestive heart failure, coronary artery disease, electrolyte disorders, gastrointestinal bleeding, heart attack and lung disease: COPD, asthma or bronchitis among the conditions Dr. Lee treats.
Internists near Dr. Lee
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. Robert S. Lee billed Medicare for 580 services in 2024
CMS data shows 580 Medicare services from Dr. Lee across 5 procedure codes in 2024, for 191 Medicare patients. Medicare paid $53,432 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lee's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5812024: 580No change
Dr. Lee compared with the California median for internists, 2024
- Dr. Lee
- California median
- Medicare services
- 580vs 36161% above
- Medicare patients
- 191vs 15126% above
- Part D claims
- 27vs 42194% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Lee'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. Lee?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lee and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert S. Lee treated 191 Medicare patients in 2024, average age 78
CMS counts 191 Medicare patients who saw Dr. Lee in 2024. The largest group is 75 to 84, with 69 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.71, 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. Lee's median patient age at 73, with 50% women.
Dr. Lee's Medicare patients by age, 2024
Dr. Lee's Medicare patients by sex, 2024
- Women11259%
- Men7941%
Chronic conditions among Dr. Lee's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Chronic kidney disease51%
- Diabetes48%
- Heart failure43%
- Atrial fibrillation42%
- Ischemic heart disease42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lee's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
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. Robert S. Lee wrote 217 Medicare Part D claims in 2024
In 2024, Dr. Lee wrote 217 Medicare Part D claims for 110 patients. 88% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $61 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Dr. Lee's Part D claims by kind of drug, 2024
- Generic190 claims88%
- Brand-name and other27 claims12%
Dr. Lee'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. Lee's Part D claims, 2024
- Opioids6%13 of 217 claims
- Antibiotics23%49 of 217 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: 112024: 27145%
Drugs named by CMS: 2 in 2024, 1 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. Robert S. Lee takes part in Medicare
Dr. Lee 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. Robert S. Lee received $85 in industry payments from 2018 to 2021
CMS Open Payments shows 4 general payments to Dr. Lee from 3 drug and device companies from 2018 to 2021. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $40.
General payments to Dr. Lee by program year, 2018 to 2021
Companies that paid Dr. Lee the most, 2018 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert S. Lee graduated from Tufts University School Of Medicine
Dr. Lee graduated from Tufts University School Of Medicine in 2003. Dr. Lee is a member of ACP.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Robert S. Lee accepts plans from 3 insurance carriers
Dr. Lee is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
- CMS Medicare
Plan types Dr. Lee accepts, by number of carriers
- Medicare3
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert S. Lee'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) |
| 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. Robert S. Lee
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. Robert S. Lee's NPI number?
Dr. Robert S. Lee's NPI number is 1528081155. It was assigned on July 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert S. Lee?
Dr. Robert S. Lee is an internist in Oceanside, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Robert S. Lee practice?
Dr. Lee practices at 4002 Vista Way, Oceanside, CA 92056. Dr. Lee's primary practice is Sharp Tri-City Medical Center in Oceanside, California, part of Sharp HealthCare. Dmand AI also links Dr. Lee to 2 medical groups.
What is Dr. Robert S. Lee's office phone number?
The practice phone on file for Dr. Lee is (760) 724-8411.
What is Dr. Robert S. Lee's medical license number?
Dr. Lee holds California license A89811.
Which hospitals is Dr. Robert S. Lee affiliated with?
Dr. Lee practices at Sharp Tri-City Medical Center in Oceanside, California.
What medical group is Dr. Robert S. Lee part of?
Dr. Lee is linked to Inpatient Specialist of California PC. Dmand AI links Dr. Lee to 2 more medical groups.
Does Dr. Robert S. Lee accept Medicare?
Yes. CMS data shows Dr. Lee billed Medicare for 580 services in 2024, and Dr. Lee accepts Medicare assignment.
How many Medicare patients does Dr. Robert S. Lee see?
CMS counts 191 Medicare patients who saw Dr. Lee in 2024, with an average age of 78.
Is Dr. Robert S. Lee board certified?
Yes. Dr. Lee is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Robert S. Lee bill to Medicare?
In 2024, Dr. Lee's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).
Where did Dr. Robert S. Lee go to medical school?
Dr. Lee graduated from Tufts University School Of Medicine in 2003.
What drugs does Dr. Robert S. Lee prescribe most?
In 2024 Medicare Part D data, Dr. Lee's most prescribed drugs by claims were Prednisone and Furosemide.
Has Dr. Robert S. Lee received payments from drug or device companies?
CMS Open Payments shows $85 in general payments to Dr. Lee from 3 companies from 2018 to 2021. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Robert S. Lee been practicing?
Dr. Lee graduated from medical school in 2003, 23 years ago.
What insurance does Dr. Robert S. Lee accept?
Dr. Lee is in network with 3 carriers, including Blue Cross Blue Shield of Massachusetts, HCSC and CMS Medicare. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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