Dr. Lars Spencer Nelson, MD
- Medicare services, 2024
- 269
- Medicare patients, 2024
- 190
- Part D claims, 2024
- 202
- MIPS score, 2024
- 82
- Hospital affiliations
- 2
- Practice address
- 601 E Rollins St, Orlando, FL 32803
- Practice phone
- Call (407) 303-1976
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nelson'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. Lars Spencer Nelson is a general surgeon in Orlando, Florida
Dr. Nelson practices at AdventHealth Orlando in Orlando, Florida, part of AdventHealth.
Dr. Nelson's NPI, 1780813592, was assigned on July 14, 2009. Dr. Nelson holds Florida license ME123398.
- NPI
- 1780813592NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012153240
- NPI enumeration date
- July 14, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (407) 303-1976
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lars Spencer Nelson practices at AdventHealth Orlando in Orlando, Florida
Dr. Nelson's primary practice is AdventHealth Orlando, at 601 E Rollins St, Orlando, FL 32803 in Orange County. The practice phone is (407) 303-1976.
- AdventHealth Orlando601 E Rollins St, Orlando, FL 32803 · Orange CountyPhone(407) 303-1976
Source: Dmand AI Affiliation Data
Dr. Lars Spencer Nelson is affiliated with 8 sites of care and 9 medical groups
Dr. Nelson's primary practice is AdventHealth Orlando in Orlando, Florida, part of AdventHealth. Dr. Nelson is also affiliated with Halifax Health Medical Center of Daytona Beach. The medical group on file is AdventHealth Medical Group. Dmand AI also links Dr. Nelson to 8 more medical groups and 6 group practices and clinics, 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. Lars Spencer Nelson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nelson practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AdventHealth Orlando | Available with a free account |
| +7 more sites and 8 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lars Spencer Nelson is one of 1,593 general surgeons in Florida
Surgery is Dr. Nelson's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Nelson is licensed in Florida.
Specialties and state licenses
- Surgery, FloridaPrimary
General surgeons near Dr. Nelson
Counts of general surgeons 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. Lars Spencer Nelson billed Medicare for 269 services in 2024
CMS data shows 269 Medicare services from Dr. Nelson across 10 procedure codes in 2024, for 190 Medicare patients. Medicare paid $21,427 for them.
Dr. Nelson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2972024: 2699%
- Surgery
- 2023: 112024: 0100%
Where Dr. Nelson's Medicare services took place, 2024
- In an office13349%
- In a facility13651%
Dr. Nelson compared with the Florida median for general surgeons, 2024
- Dr. Nelson
- Florida median
- Medicare services
- 269vs 19836% above
- Medicare patients
- 190vs 13343% above
- Part D claims
- 124vs 432.9 times
Medians across 1,425 general surgeons in Florida with Dmand AI profiles that report each measure.
Dr. Nelson'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lars Spencer Nelson treated 190 Medicare patients in 2024, average age 74
CMS counts 190 Medicare patients who saw Dr. Nelson in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 2.13, 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. Nelson's median patient age at 66, with 55% women.
Dr. Nelson's Medicare patients by age, 2024
Dr. Nelson's Medicare patients by sex, 2024
- Women10254%
- Men8846%
Chronic conditions among Dr. Nelson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Chronic kidney disease48%
- Ischemic heart disease47%
- Diabetes41%
- Mood disorders41%
- Anxiety39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nelson'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
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lars Spencer Nelson wrote 202 Medicare Part D claims in 2024
In 2024, Dr. Nelson wrote 202 Medicare Part D claims for 93 patients. 99% of them were for generic drugs. CMS names the drug for 124 of them, across 5 drugs with 11 or more claims each, at $1,474 in total drug cost. In 2023, CMS named 108 claims across 5 drugs.
Dr. Nelson's Part D claims by kind of drug, 2024
- Generic200 claims99%
- Brand-name and other2 claims1%
Dr. Nelson'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. Nelson's Part D claims, 2024
- Opioids32%65 of 202 claims
- Antibiotics27%55 of 202 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: 1082024: 12415%
Drugs named by CMS: 5 in 2024, 5 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. Lars Spencer Nelson scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Nelson for performance year 2024, reported as part of a group. Dr. Nelson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Nelson's MIPS scores, performance year 2024
- 82of 100Final score
- 64.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lars Spencer Nelson received $18,061 in industry payments from 2016 to 2025
CMS Open Payments shows 324 general payments to Dr. Nelson from 67 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 54% of the total. Intuitive Surgical, Inc. paid the most, $6,186.
General payments to Dr. Nelson by program year, 2016 to 2025
General payments to Dr. Nelson by kind, 2016 to 2025
- Food and beverage$9,68654%
- Education$4,00022%
- Travel and lodging$3,80421%
- Consulting fees$5713%
Companies that paid Dr. Nelson 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. Lars Spencer Nelson'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)Doctors and Clinicians Utilization Data (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. Lars Spencer Nelson
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. Lars Spencer Nelson's NPI number?
Dr. Lars Spencer Nelson's NPI number is 1780813592. It was assigned on July 14, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Lars Spencer Nelson?
Dr. Lars Spencer Nelson is a general surgeon in Orlando, Florida. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Lars Spencer Nelson practice?
Dr. Nelson practices at 601 E Rollins St, Orlando, FL 32803. Dr. Nelson's primary practice is AdventHealth Orlando in Orlando, Florida, part of AdventHealth. Dmand AI also links Dr. Nelson to 8 medical groups and 6 group practices and clinics.
What is Dr. Lars Spencer Nelson's office phone number?
The practice phone on file for Dr. Nelson is (407) 303-1976.
What is Dr. Lars Spencer Nelson's medical license number?
Dr. Nelson holds Florida license ME123398.
Which hospitals is Dr. Lars Spencer Nelson affiliated with?
Dr. Nelson practices at AdventHealth Orlando in Orlando, Florida. Dr. Nelson is also affiliated with Halifax Health Medical Center of Daytona Beach.
What medical group is Dr. Lars Spencer Nelson part of?
Dr. Nelson is linked to AdventHealth Medical Group. Dmand AI links Dr. Nelson to 8 more medical groups.
Does Dr. Lars Spencer Nelson accept Medicare?
Yes. CMS data shows Dr. Nelson billed Medicare for 269 services in 2024, and Dr. Nelson accepts Medicare assignment.
What is Dr. Lars Spencer Nelson's MIPS score?
Dr. Nelson's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Lars Spencer Nelson see?
CMS counts 190 Medicare patients who saw Dr. Nelson in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Lars Spencer Nelson bill to Medicare?
In 2024, Dr. Nelson's most billed Medicare services were hospital inpatient care (99222), office visit, established patient (99213) and hospital inpatient care (99231).
What drugs does Dr. Lars Spencer Nelson prescribe most?
In 2024 Medicare Part D data, Dr. Nelson's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cephalexin and Ondansetron ODT.
Has Dr. Lars Spencer Nelson received payments from drug or device companies?
CMS Open Payments shows $18,061 in general payments to Dr. Nelson from 67 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Lars Spencer Nelson been practicing?
Dr. Nelson graduated from medical school in 2009, 17 years ago.
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