Gretchen Hansell Collum, FNP-BC
- Medicare patients, 2024
- 320
- Part D claims, 2024
- 1,446
- MIPS score, 2024
- 84
- Hospital affiliations
- 1
- Industry payments
- $658
- Practice address
- 811 W Main St, Lexington, SC 29072
- Practice phone
- Call (803) 936-7035
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lmc Lexington
Lexington, South Carolina
Find Gretchen Collum'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.
Gretchen Hansell Collum is a primary care nurse practitioner in Lexington, South Carolina
Gretchen Collum practices at Lmc Lexington in Lexington, South Carolina.
Gretchen Collum's NPI, 1568508141, was assigned on January 30, 2007. Gretchen Collum holds South Carolina license 2771.
- NPI
- 1568508141NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072619642
- NPI enumeration date
- January 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (803) 936-7035
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Gretchen Hansell Collum practices at Lmc Lexington in Lexington, South Carolina
Gretchen Collum's primary practice is Lmc Lexington, at 811 W Main St, Lexington, SC 29072 in Lexington County. The practice phone is (803) 936-7035.
- Lmc Lexington811 W Main St, Lexington, SC 29072 · Lexington CountyPhone(803) 936-7035
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Gretchen Hansell Collum is affiliated with 3 sites of care and 1 medical group
Gretchen Collum's primary practice is Lmc Lexington in Lexington, South Carolina. Gretchen Collum is also affiliated with Lexington Medical Center. The medical group on file is Lexington Orthopaedics and Sports Medicine. Dmand AI also links Gretchen Collum 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 Gretchen Hansell Collum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gretchen Collum practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lmc Lexington | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Gretchen Hansell Collum is one of 133 primary care nurse practitioners in South Carolina
Primary care is Gretchen Collum's primary specialty in the NPI Registry, under taxonomy code 363LP2300X. Gretchen Collum is licensed in South Carolina.
Specialties and state licenses
- Primary care nurse practitioner, South CarolinaPrimary
Primary care nurse practitioners near Gretchen Collum
Counts of primary care nurse practitioners 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
Gretchen Hansell Collum treated 320 Medicare patients in 2024, average age 76
CMS counts 320 Medicare patients who saw Gretchen Collum in 2024. The largest group is 75 to 84, with 137 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Gretchen Collum's median patient age at 59, with 67% women.
Gretchen Collum's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Gretchen Collum's Medicare patients by sex, 2024
- Women20765%
- Men11335%
Chronic conditions among Gretchen Collum's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease31%
- Anxiety27%
- Diabetes26%
- Mood disorders24%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Gretchen Collum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gretchen Hansell Collum wrote 1,446 Medicare Part D claims in 2024
In 2024, Gretchen Collum wrote 1,446 Medicare Part D claims for 461 patients. 88% of them were for generic drugs.
Gretchen Collum's Part D claims by kind of drug, 2024
- Generic1,270 claims88%
- Brand-name and other176 claims12%
Drug classes CMS tracks in Gretchen Collum's Part D claims, 2024
- Opioids2%29 of 1,446 claims
- Antibiotics16%236 of 1,446 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Gretchen Hansell Collum scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Gretchen Collum for performance year 2024, reported as part of a group. Gretchen Collum accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Gretchen Collum's MIPS scores, performance year 2024
- 84of 100Final score
- 68.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Gretchen Hansell Collum received $658 in industry payments in 2025
CMS Open Payments shows 34 general payments to Gretchen Collum from 20 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $90.
Companies that paid Gretchen Collum the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Gretchen Hansell Collum'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 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 (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) |
| 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 Gretchen Hansell Collum
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What is Gretchen Hansell Collum's NPI number?
Gretchen Hansell Collum's NPI number is 1568508141. It was assigned on January 30, 2007, and it is active in the NPI Registry.
What does Gretchen Hansell Collum specialize in?
Gretchen Hansell Collum is a primary care nurse practitioner in Lexington, South Carolina. The primary specialty in the NPI Registry is Primary Care Nurse Practitioner (taxonomy code 363LP2300X).
Where does Gretchen Hansell Collum practice?
Gretchen Collum practices at 811 W Main St, Lexington, SC 29072. Gretchen Collum's primary practice is Lmc Lexington in Lexington, South Carolina. Dmand AI also links Gretchen Collum to 1 group practice or clinic.
What is Gretchen Hansell Collum's office phone number?
The practice phone on file for Gretchen Collum is (803) 936-7035.
What is Gretchen Hansell Collum's medical license number?
Gretchen Collum holds South Carolina license 2771.
Which hospitals is Gretchen Hansell Collum affiliated with?
Gretchen Collum is affiliated with Lexington Medical Center.
What medical group is Gretchen Hansell Collum part of?
Gretchen Collum is linked to Lexington Orthopaedics and Sports Medicine.
Does Gretchen Hansell Collum accept Medicare?
Yes. CMS lists Gretchen Collum as accepting Medicare assignment.
What is Gretchen Hansell Collum's MIPS score?
Gretchen Collum's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Gretchen Hansell Collum see?
CMS counts 320 Medicare patients who saw Gretchen Collum in 2024, with an average age of 76.
Has Gretchen Hansell Collum received payments from drug or device companies?
CMS Open Payments shows $658 in general payments to Gretchen Collum from 20 companies from 2025 to 2025. The largest total came from Novo Nordisk Inc.
How long has Gretchen Hansell Collum been practicing?
Gretchen Collum graduated from medical school in 2005, 21 years ago.
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