Dr. Rudolph Gordon Johnstone III, MD
- Medicare services, 2024
- 6,854
- Medicare patients, 2024
- 407
- Part D claims, 2024
- 560
- Industry payments
- $14,241
- Affiliated sites
- 1
- Practice address
- 48 Creekview Ct, Greenville, SC 29615
- Practice phone
- Call (864) 458-7431
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Allergy Partners of the Upstate
Greenville, South Carolina
Find Dr. Johnstone'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. Rudolph Gordon Johnstone III is an allergist and immunologist in Greenville, South Carolina
Dr. Johnstone practices at Allergy Partners of the Upstate in Greenville, South Carolina.
Dr. Johnstone's NPI, 1710977962, was assigned on October 27, 2005. Dr. Johnstone graduated from Medical University of South Carolina College of Medicine in 1986. Dr. Johnstone holds South Carolina license MD13617.
- NPI
- 1710977962NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931004256
- NPI enumeration date
- October 27, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (864) 458-7431
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rudolph Gordon Johnstone III practices at Allergy Partners of the Upstate in Greenville, South Carolina
Dr. Johnstone's primary practice is Allergy Partners of the Upstate, at 48 Creekview Ct, Greenville, SC 29615 in Greenville County. The practice phone is (864) 458-7431.
- Allergy Partners of the Upstate48 Creekview Ct, Greenville, SC 29615 · Greenville CountyPhone(864) 458-7431
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Rudolph Gordon Johnstone III is affiliated with 2 sites of care and 1 medical group
Dr. Johnstone's primary practice is Allergy Partners of the Upstate in Greenville, South Carolina. The medical group on file is Allergy Partners of Crestview Hills. Dmand AI also links Dr. Johnstone 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. Rudolph Gordon Johnstone III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnstone practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Allergy Partners of the Upstate | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Rudolph Gordon Johnstone III is one of 42 allergists and immunologists in South Carolina
Allergy and immunology is Dr. Johnstone's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Johnstone is licensed in South Carolina.
Specialties and state licenses
- Allergy and immunology, South CarolinaPrimary
Allergists and immunologists near Dr. Johnstone
Counts of allergists and immunologists 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. Rudolph Gordon Johnstone III billed Medicare for 6,854 services in 2024
CMS data shows 6,854 Medicare services from Dr. Johnstone across 9 procedure codes in 2024, for 407 Medicare patients. Medicare paid $64,909 for them. Every service was in an office.
Dr. Johnstone's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5,6882024: 6,57316%
- Office and hospital visits
- 2023: 2762024: 2812%
Dr. Johnstone compared with the South Carolina median for allergists and immunologists, 2024
- Dr. Johnstone
- South Carolina median
- Medicare services
- 6,854vs 5,41827% above
- Medicare patients
- 407vs 30533% above
- Part D claims
- 495vs 63021% below
Medians across 44 allergists and immunologists in South Carolina with Dmand AI profiles that report each measure.
Dr. Johnstone'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. Johnstone?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnstone and other allergists and immunologists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rudolph Gordon Johnstone III treated 407 Medicare patients in 2024, average age 73
CMS counts 407 Medicare patients who saw Dr. Johnstone in 2024. The largest group is 65 to 74, with 230 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnstone's median patient age at 37, with 59% women.
Dr. Johnstone's Medicare patients by age, 2024
Dr. Johnstone's Medicare patients by sex, 2024
- Women28570%
- Men12230%
Chronic conditions among Dr. Johnstone's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis53%
- Asthma31%
- Anxiety29%
- Mood disorders27%
- Depression23%
- Diabetes22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnstone's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Rudolph Gordon Johnstone III wrote 560 Medicare Part D claims in 2024
In 2024, Dr. Johnstone wrote 560 Medicare Part D claims for 169 patients. 82% of them were for generic drugs. CMS names the drug for 495 of them, across 14 drugs with 11 or more claims each, at $51,125 in total drug cost. In 2023, CMS named 503 claims across 17 drugs.
Dr. Johnstone's Part D claims by kind of drug, 2024
- Generic459 claims82%
- Brand-name101 claims18%
Dr. Johnstone'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. Johnstone's Part D claims, 2024
- Antibiotics6%35 of 560 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: 5032024: 4952%
Drugs named by CMS: 14 in 2024, 17 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. Rudolph Gordon Johnstone III takes part in Medicare
Dr. Johnstone 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Rudolph Gordon Johnstone III received $14,241 in industry payments from 2016 to 2025
CMS Open Payments shows 626 general payments to Dr. Johnstone from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $2,817.
General payments to Dr. Johnstone by program year, 2016 to 2025
General payments to Dr. Johnstone by kind, 2016 to 2025
- Food and beverage$14,182100%
- Education$590%
Companies that paid Dr. Johnstone the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rudolph Gordon Johnstone III graduated from Medical University of South Carolina College of Medicine
Dr. Johnstone graduated from Medical University of South Carolina College of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rudolph Gordon Johnstone III'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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Rudolph Gordon Johnstone III
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. Rudolph Gordon Johnstone III's NPI number?
Dr. Rudolph Gordon Johnstone III's NPI number is 1710977962. It was assigned on October 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Rudolph Gordon Johnstone III?
Dr. Rudolph Gordon Johnstone III is an allergist and immunologist in Greenville, South Carolina. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Rudolph Gordon Johnstone III practice?
Dr. Johnstone practices at 48 Creekview Ct, Greenville, SC 29615. Dr. Johnstone's primary practice is Allergy Partners of the Upstate in Greenville, South Carolina. Dmand AI also links Dr. Johnstone to 1 group practice or clinic.
What is Dr. Rudolph Gordon Johnstone III's office phone number?
The practice phone on file for Dr. Johnstone is (864) 458-7431.
What is Dr. Rudolph Gordon Johnstone III's medical license number?
Dr. Johnstone holds South Carolina license MD13617.
What medical group is Dr. Rudolph Gordon Johnstone III part of?
Dr. Johnstone is linked to Allergy Partners of Crestview Hills.
Does Dr. Rudolph Gordon Johnstone III accept Medicare?
Yes. CMS data shows Dr. Johnstone billed Medicare for 6,854 services in 2024, and Dr. Johnstone accepts Medicare assignment.
How many Medicare patients does Dr. Rudolph Gordon Johnstone III see?
CMS counts 407 Medicare patients who saw Dr. Johnstone in 2024, with an average age of 73.
What services does Dr. Rudolph Gordon Johnstone III bill to Medicare?
In 2024, Dr. Johnstone's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95165) and allergy test or treatment (95117).
Where did Dr. Rudolph Gordon Johnstone III go to medical school?
Dr. Johnstone graduated from Medical University of South Carolina College of Medicine in 1986.
Show 3 more questionsShow fewer questions
What drugs does Dr. Rudolph Gordon Johnstone III prescribe most?
In 2024 Medicare Part D data, Dr. Johnstone's most prescribed drugs by claims were Montelukast Sodium, Fluticasone Propionate and Azelastine HCl.
Has Dr. Rudolph Gordon Johnstone III received payments from drug or device companies?
CMS Open Payments shows $14,241 in general payments to Dr. Johnstone from 35 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Rudolph Gordon Johnstone III been practicing?
Dr. Johnstone graduated from medical school in 1986, 40 years ago.
Selling to allergy and immunology practices?
See allergists and immunologists in South Carolina by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card