Dr. John Stephen Gerig, MD
- Medicare services, 2023
- 400
- Part D claims, 2024
- 96
- Industry payments
- $5,071
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 111 Dorsett Drive, Salisbury, NC 28144
- Practice phone
- Call (704) 537-2107
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
DaVita Dialysis Care Of Rowan County
Dialysis Center - Independent · Salisbury, North Carolina
Find Dr. Gerig's professional email, personal email and mobile number
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Dr. John Stephen Gerig is a nephrologist in Salisbury, North Carolina
Dr. Gerig practices at DaVita Dialysis Care Of Rowan County in Salisbury, North Carolina.
Dr. Gerig's NPI, 1477550440, was assigned on July 5, 2005. Dr. Gerig graduated from Georgetown University School of Medicine in 1978. Dr. Gerig holds North Carolina license 9800544.
- NPI
- 1477550440NPI Registry (opens in a new tab)
- NPI enumeration date
- July 5, 2005
- NPI status
- Active
- Practice phone
- (704) 537-2107
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John Stephen Gerig practices at DaVita Dialysis Care of Rowan County in Salisbury, North Carolina
Dr. Gerig's primary practice is DaVita Dialysis Care of Rowan County, at 111 Dorsett Drive, Salisbury, NC 28144 in Rowan County. The practice phone is (704) 537-2107.
- DaVita Dialysis Care of Rowan County111 Dorsett Drive, Salisbury, NC 28144 · Rowan CountyPhone(704) 537-2107
Source: Dmand AI Affiliation Data
Dr. John Stephen Gerig is affiliated with 2 sites of care and 1 medical group
Dr. Gerig's primary practice is DaVita Dialysis Care Of Rowan County in Salisbury, North Carolina. The medical group on file is Metrolina Nephrology Associates. Dmand AI also links Dr. Gerig to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Stephen Gerig's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gerig practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| DaVita Dialysis Care Of Rowan County | 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. John Stephen Gerig is one of 348 nephrologists in North Carolina
Nephrology is Dr. Gerig's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Gerig is licensed in North Carolina.
Specialties and state licenses
- Nephrology, North CarolinaPrimary
Nephrologists near Dr. Gerig
Counts of nephrologists 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. John Stephen Gerig billed Medicare for 400 services in 2023
CMS data shows 400 Medicare services from Dr. Gerig across 9 procedure codes in 2023. Medicare paid $47,010 for them.
Dr. Gerig's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 4812023: 14969%
- Tests and treatments
- 2022: 4232023: 13867%
- Lab and pathology
- 2022: 4952023: 9082%
- Surgery
- 2022: 832023: 2372%
Where Dr. Gerig's Medicare services took place, 2023
- In an office25163%
- In a facility14937%
Dr. Gerig compared with the North Carolina median for nephrologists, 2023
- Dr. Gerig
- North Carolina median
- Medicare services
- 400vs 1,04662% below
- Part D claims
- 13vs 73298% below
Medians across 346 nephrologists in North Carolina with Dmand AI profiles that report each measure.
Dr. Gerig's most billed Medicare procedure codes, 2023
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. Gerig?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gerig and other nephrologists in North Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Stephen Gerig's patients have a median age of 79
Across all payers, Dmand AI patient panel data puts Dr. Gerig's median patient age at 79, with 25% women.
Dr. Gerig's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 79
Patient panel by sex, all payers
- Women25%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. John Stephen Gerig wrote 96 Medicare Part D claims in 2024
In 2024, Dr. Gerig wrote 96 Medicare Part D claims for 33 patients. 99% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $165 in total drug cost. In 2023, CMS named 313 claims across 15 drugs.
Dr. Gerig's Part D claims by kind of drug, 2024
- Generic95 claims99%
- Brand-name and other1 claims1%
Dr. Gerig'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3132024: 1396%
Drugs named by CMS: 1 in 2024, 15 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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Dr. John Stephen Gerig received $5,071 in industry payments from 2016 to 2025
CMS Open Payments shows 135 general payments to Dr. Gerig from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 65% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,123.
General payments to Dr. Gerig by program year, 2016 to 2025
General payments to Dr. Gerig by kind, 2016 to 2025
- Food and beverage$3,28965%
- Consulting fees$1,51730%
- Education$2655%
Companies that paid Dr. Gerig 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. John Stephen Gerig graduated from Georgetown University School of Medicine
Dr. Gerig graduated from Georgetown University School of Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Stephen Gerig'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 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) |
| 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. John Stephen Gerig
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What is Dr. John Stephen Gerig's NPI number?
Dr. John Stephen Gerig's NPI number is 1477550440. It was assigned on July 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Stephen Gerig?
Dr. John Stephen Gerig is a nephrologist in Salisbury, North Carolina. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. John Stephen Gerig practice?
Dr. Gerig practices at 111 Dorsett Drive, Salisbury, NC 28144. Dr. Gerig's primary practice is DaVita Dialysis Care Of Rowan County in Salisbury, North Carolina. Dmand AI also links Dr. Gerig to 1 group practice or clinic.
What is Dr. John Stephen Gerig's office phone number?
The practice phone on file for Dr. Gerig is (704) 537-2107.
What is Dr. John Stephen Gerig's medical license number?
Dr. Gerig holds North Carolina license 9800544.
What medical group is Dr. John Stephen Gerig part of?
Dr. Gerig is linked to Metrolina Nephrology Associates.
Does Dr. John Stephen Gerig accept Medicare?
Yes. CMS data shows Dr. Gerig billed Medicare for 400 services in 2023.
What services does Dr. John Stephen Gerig bill to Medicare?
In 2023, Dr. Gerig's most billed Medicare services were hospital inpatient care (99232), dialysis (90960) and dialysis (90961).
Where did Dr. John Stephen Gerig go to medical school?
Dr. Gerig graduated from Georgetown University School of Medicine in 1978.
What drugs does Dr. John Stephen Gerig prescribe most?
In 2024 Medicare Part D data, Dr. Gerig's most prescribed drugs by claims were Hydralazine HCl.
Has Dr. John Stephen Gerig received payments from drug or device companies?
CMS Open Payments shows $5,071 in general payments to Dr. Gerig from 21 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. John Stephen Gerig been practicing?
Dr. Gerig graduated from medical school in 1978, 48 years ago.
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