DR. JOHN STEPHEN GERIG M.D.
NPI 1477550440
Internal Medicine - Nephrology in Concord, NC

Q: What is John Gerig's NPI number?

The NPI number for John Gerig is 1477550440. It was assigned to this individual provider in the NPPES registry on July 5, 2005.

Q: What is John Gerig's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for John Gerig was last updated on July 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 05, 2005PECOS Enrolled

433 COPPERFIELD BLVD NE, CONCORD, NC 28025(704) 786-7770(704) 788-9351 Get Directions Write a Review

NPPES record last updated: July 6, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 6, 2023, Mar 12, 2021 (2 updates tracked since 2021).

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About Dr. John Stephen Gerig M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN STEPHEN GERIG M.D. (NPI 1477550440) is an individual nephrology provider in Concord, North Carolina, licensed in North Carolina (9800544) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477550440

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. JOHN STEPHEN GERIGCredential: M.D.

Location Address433 COPPERFIELD BLVD NEConcord, NC 28025-2405

Mailing AddressPo Box 37938Charlotte, NC 28237-7938 · (704) 332-0396 · Fax (704) 971-0035

Phone(704) 786-7770

Fax(704) 788-9351

Sole ProprietorNo

Enumeration DateJuly 5, 2005

Last NPPES UpdateJuly 6, 20232 updates tracked since enumeration

NPPES CertifiedJuly 6, 2023

✔ NPI 1477550440 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in NC · 9800544

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

433 COPPERFIELD BLVD NE, Concord, NC 28025

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Other Identifiers 5

Other78975NC · Medcost Provider

Medicaid891145JNC

Other1145JNC · Bcbs

Other23992NC · Partners Medicare

Other390006558NC · Rr Mcare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. John Stephen Gerig M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show John Gerig reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Metrolina Nephrology Associates, PA

22 mi

Nephrology

3158 FREEDOM DRIVE, STE 3101
Charlotte, NC 28208

Reassigned Medicare billing, North Carolina enrollment
97 clinicians in this Medicare group

NPI 1083664189 (704) 348-2992

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 28025 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$125.01 typical visit price

range $54.12 – $165.09

Typical copayment $31.25 (range $13.53 – $41.27)

Most-billed visit code 99204

Established Patient

$95.94 typical visit price

range $17.21 – $134.61

Typical copayment $23.98 (range $4.30 – $33.65)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

2 suppliers13 claims900 services$0.36 avg. paid by Medicare

Mycophenolic acid, oral, 180 mg J7518

Treatment-Treatment - Miscellaneous · category RX029N

1 supplier19 claims3,300 services$0.93 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

3 suppliers22 claims22 services$18.99 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512

Treatment-Chemotherapy · category RH012N

3 suppliers17 claims17 services$12.66 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ERNEST F JOHNSON III MD

Internal Medicine (Nephrology)