Dr. Leonid Zamdborg, MD, PhD
- Medicare services, 2024
- 9,166
- Medicare patients, 2024
- 356
- Part D claims, 2024
- 207
- Industry payments
- $7,449
- Affiliated sites
- 1
- Practice address
- 166 Stoneridge Dr, Columbia, SC 29210
- Practice phone
- Call (803) 461-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
South Carolina Oncology Assoc PA
Columbia, South Carolina
Find Dr. Zamdborg'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. Leonid Zamdborg is a radiation oncologist in Columbia, South Carolina
Dr. Zamdborg practices at South Carolina Oncology Assoc PA in Columbia, South Carolina.
Dr. Zamdborg's NPI, 1467899534, was assigned on May 30, 2013. Dr. Zamdborg holds South Carolina license 52455.
- NPI
- 1467899534NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072744424
- NPI enumeration date
- May 30, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 461-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leonid Zamdborg practices at South Carolina Oncology Assoc PA in Columbia, South Carolina
Dr. Zamdborg's primary practice is South Carolina Oncology Assoc PA, at 166 Stoneridge Dr, Columbia, SC 29210 in Richland County. The practice phone is (803) 461-3000.
- South Carolina Oncology Assoc PA166 Stoneridge Dr, Columbia, SC 29210 · Richland CountyPhone(803) 461-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Leonid Zamdborg is affiliated with 2 sites of care and 1 medical group
Dr. Zamdborg's primary practice is South Carolina Oncology Assoc PA in Columbia, South Carolina. The medical group on file is South Carolina Oncology Associates. Dmand AI also links Dr. Zamdborg to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Leonid Zamdborg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zamdborg practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Carolina Oncology Assoc PA | 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. Leonid Zamdborg is one of 79 radiation oncologists in South Carolina
Radiation oncology is Dr. Zamdborg's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Zamdborg's licenses on file in 2 states: South Carolina and Michigan.
Specialties and state licenses
- Radiation oncology, South CarolinaPrimary
- Michigan license
Radiation oncologists near Dr. Zamdborg
Counts of radiation oncologists 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. Leonid Zamdborg billed Medicare for 9,166 services in 2024
CMS data shows 9,166 Medicare services from Dr. Zamdborg across 29 procedure codes in 2024, for 356 Medicare patients. Medicare paid $1,032,126 for them. Every service was in an office.
Dr. Zamdborg's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 4,1252024: 5,30229%
- Imaging
- 2023: 3,5072024: 3,2657%
- Office and hospital visits
- 2023: 2232024: 2251%
- Surgery
- 2023: 1252024: 1282%
- Drugs given in the office
- 2023: 1622024: 12026%
- Lab and pathology
- 2023: 932024: 963%
- Tests and treatments
- 2023: 332024: 309%
Dr. Zamdborg compared with the South Carolina median for radiation oncologists, 2024
- Dr. Zamdborg
- South Carolina median
- Medicare services
- 9,166vs 1,9044.8 times
- Medicare patients
- 356vs 24545% above
- Part D claims
- 153vs 662.3 times
Medians across 80 radiation oncologists in South Carolina with Dmand AI profiles that report each measure.
Dr. Zamdborg'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. Zamdborg and other radiation oncologists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Leonid Zamdborg treated 356 Medicare patients in 2024, average age 75
CMS counts 356 Medicare patients who saw Dr. Zamdborg in 2024. The largest group is 65 to 74, with 169 patients. 75% of them have cancer, and 75% have high blood pressure. 4% are also on Medicaid. Their average risk score is 1.53, 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. Zamdborg's median patient age at 70, with 42% women.
Dr. Zamdborg's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Zamdborg's Medicare patients by sex, 2024
- Women13939%
- Men21761%
Chronic conditions among Dr. Zamdborg's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes34%
- Ischemic heart disease32%
- Chronic kidney disease28%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zamdborg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women42%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Leonid Zamdborg wrote 207 Medicare Part D claims in 2024
In 2024, Dr. Zamdborg wrote 207 Medicare Part D claims for 99 patients. 93% of them were for generic drugs. CMS names the drug for 153 of them, across 8 drugs with 11 or more claims each, at $12,270 in total drug cost. In 2023, CMS named 106 claims across 4 drugs.
Dr. Zamdborg's Part D claims by kind of drug, 2024
- Generic192 claims93%
- Brand-name15 claims7%
Dr. Zamdborg'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. Zamdborg's Part D claims, 2024
- Opioids11%23 of 207 claims
- Antibiotics6%13 of 207 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: 1062024: 15344%
Drugs named by CMS: 8 in 2024, 4 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. Leonid Zamdborg takes part in Medicare
Dr. Zamdborg 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. Leonid Zamdborg received $7,449 in industry payments from 2016 to 2025
CMS Open Payments shows 337 general payments to Dr. Zamdborg from 64 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $782.
General payments to Dr. Zamdborg by program year, 2016 to 2025
Companies that paid Dr. Zamdborg the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Leonid Zamdborg'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 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) |
| 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. Leonid Zamdborg
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. Leonid Zamdborg's NPI number?
Dr. Leonid Zamdborg's NPI number is 1467899534. It was assigned on May 30, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Leonid Zamdborg?
Dr. Leonid Zamdborg is a radiation oncologist in Columbia, South Carolina. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Leonid Zamdborg practice?
Dr. Zamdborg practices at 166 Stoneridge Dr, Columbia, SC 29210. Dr. Zamdborg's primary practice is South Carolina Oncology Assoc PA in Columbia, South Carolina. Dmand AI also links Dr. Zamdborg to 1 group practice or clinic.
What is Dr. Leonid Zamdborg's office phone number?
The practice phone on file for Dr. Zamdborg is (803) 461-3000.
What is Dr. Leonid Zamdborg's medical license number?
Dr. Zamdborg holds South Carolina license 52455, one of the licenses on file in 2 states.
Which states has Dr. Leonid Zamdborg been licensed in?
Dmand AI has state licenses on file for Dr. Zamdborg in South Carolina and Michigan.
What medical group is Dr. Leonid Zamdborg part of?
Dr. Zamdborg is linked to South Carolina Oncology Associates.
Does Dr. Leonid Zamdborg accept Medicare?
Yes. CMS data shows Dr. Zamdborg billed Medicare for 9,166 services in 2024, and Dr. Zamdborg accepts Medicare assignment.
How many Medicare patients does Dr. Leonid Zamdborg see?
CMS counts 356 Medicare patients who saw Dr. Zamdborg in 2024, with an average age of 75.
What services does Dr. Leonid Zamdborg bill to Medicare?
In 2024, Dr. Zamdborg's most billed Medicare services were medical supplies or transport (A9585), medicare temporary code (Q9967) and medicare service (G6015).
Show 3 more questionsShow fewer questions
What drugs does Dr. Leonid Zamdborg prescribe most?
In 2024 Medicare Part D data, Dr. Zamdborg's most prescribed drugs by claims were Tamsulosin HCl, Oxycodone HCl and Dicyclomine HCl.
Has Dr. Leonid Zamdborg received payments from drug or device companies?
CMS Open Payments shows $7,449 in general payments to Dr. Zamdborg from 64 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Leonid Zamdborg been practicing?
Dr. Zamdborg graduated from medical school in 2013, 13 years ago.
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