John Helmken
- Part D claims, 2026
- 52
- Industry payments
- $1,294
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 701 Grove Rd, Greenville, SC 29605-4210
- Practice phone
- Call (864) 455-5515
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find John Helmken'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.
John Helmken is a general surgeon in Greenville, South Carolina
John Helmken practices in Greenville, South Carolina.
John Helmken's NPI, 1972183457, was assigned on April 9, 2021. John Helmken holds South Carolina license LL85765.
- NPI
- 1972183457NPI Registry (opens in a new tab)
- NPI enumeration date
- April 9, 2021
- NPI status
- Active
- Practice phone
- (864) 455-5515
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
John Helmken's practice address is in Greenville, South Carolina
John Helmken's practice address in the NPI Registry is 701 Grove Rd, Greenville, SC 29605-4210. The practice phone is (864) 455-5515.
- NPI Registry address701 Grove Rd, Greenville, SC 29605-4210Phone(864) 455-5515
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at John Helmken's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Helmken practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| John Helmken's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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John Helmken is one of 506 general surgeons in South Carolina
Surgery is John Helmken's primary specialty in the NPI Registry, under taxonomy code 208600000X. John Helmken is licensed in South Carolina.
Specialties and state licenses
- Surgery, South CarolinaPrimary
General surgeons near John Helmken
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
John Helmken's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts John Helmken's median patient age at 53, with 100% women.
John Helmken's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
John Helmken wrote 52 Medicare Part D claims in 2026
In 2026, John Helmken wrote 52 Medicare Part D claims for 30 patients. 94% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $55 in total drug cost. In 2023, CMS named 69 claims across 3 drugs.
John Helmken's Part D claims by kind of drug, 2026
- Generic49 claims94%
- Brand-name and other3 claims6%
John Helmken'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 John Helmken's Part D claims, 2026
- Opioids40%21 of 52 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: 692024: 1972%
Drugs named by CMS: 1 in 2024, 3 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
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John Helmken received $1,294 in industry payments from 2021 to 2025
CMS Open Payments shows 15 general payments to John Helmken from 12 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $212.
General payments to John Helmken by program year, 2021 to 2025
Companies that paid John Helmken the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for John Helmken'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 |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 John Helmken
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Helmken's NPI number?
John Helmken's NPI number is 1972183457. It was assigned on April 9, 2021, and it is active in the NPI Registry.
What does John Helmken specialize in?
John Helmken is a general surgeon in Greenville, South Carolina. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does John Helmken practice?
John Helmken practices at 701 Grove Rd, Greenville, SC 29605-4210.
What is John Helmken's office phone number?
The practice phone on file for John Helmken is (864) 455-5515. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is John Helmken's email address?
Dmand AI checks professional and personal email addresses for John Helmken through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is John Helmken's medical license number?
John Helmken holds South Carolina license LL85765.
What drugs does John Helmken prescribe most?
In 2024 Medicare Part D data, John Helmken's most prescribed drugs by claims were Oxycodone HCl.
Has John Helmken received payments from drug or device companies?
CMS Open Payments shows $1,294 in general payments to John Helmken from 12 companies from 2021 to 2025. The largest total came from Boston Scientific Corporation.
How long has John Helmken been practicing?
John Helmken's NPI was assigned in 2021.
What EHR does John Helmken's practice use?
Dmand AI tracks the EHR system at John Helmken's practice. The vendor and product are available with a free Dmand AI account.
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