1. Home
  2. Directory
  3. Georgia
  4. Lawrenceville
  5. Radiology
  6. NPI Profile

JOHN ANDREW KNOPF MD
NPI 1487116349
Radiology - Diagnostic Radiology in Lawrenceville, GA

Active since April 01, 2019PECOS EnrolledAccepts Medicare Assignment
665 DULUTH HWY STE 401, LAWRENCEVILLE, GA 30046(912) 659-6806 Get Directions Write a Review

NPPES record last updated: September 25, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About John Andrew Knopf Md NPPES

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

JOHN ANDREW KNOPF MD (NPI 1487116349) is an individual diagnostic radiology provider in Lawrenceville, Georgia, licensed in Georgia (103721) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Memorial University Medical Center, and maintains 5 additional practice locations.

NPPES Registry Identity

NPI1487116349
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameJOHN ANDREW KNOPFCredential: MD
Location Address665 DULUTH HWY STE 401Lawrenceville, GA 30046-4303
Mailing AddressPo Box 1190Lawrenceville, GA 30046-1190
Phone(912) 659-6806
Sole ProprietorNo
Medical School CMSMedical College Of Georgia School Of MedicineGraduated 2019
Enumeration DateApril 1, 2019
Last NPPES UpdateSeptember 25, 2025
NPPES CertifiedSeptember 25, 2025
✔ NPI 1487116349 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in GA · 103721
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
665 DULUTH HWY STE 401, Lawrenceville, GA 30046
Open in Google Maps ↗

Secondary Practice Locations 5

Location 1835 Austin DriveDemorest, GA 30535-4513 · Phone (770) 535-9391 · Fax (770) 533-4701
Location 2801 Austin DriveDemorest, GA 30535-4513 · Phone (770) 535-9391 · Fax (770) 533-4701
Location 3655 Jesse Jewell Pkwy SEGainesville, GA 30501-3854 · Phone (770) 535-9391 · Fax (770) 533-4701
Location 41270 Friendship RdBraselton, GA 30517-5608 · Phone (770) 535-9391 · Fax (770) 533-4701
Location 5725 Jesse Jewell Pkwy SEGainesville, GA 30501-3834 · Phone (770) 535-9391 · Fax (770) 533-4701

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Andrew Knopf Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2860726882
PECOS Enrollment IDI20250602001800, I20250617004243
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.

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial University Medical Center

Acute Care Hospitals · Savannah, GA
1/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number110036
Location4700 Waters AvenueSavannah, GA 31404 · Chatham County
Emergency services Birthing friendly

Memorial Health Meadows Hospital

Acute Care Hospitals · Vidalia, GA
5/5 CMS rating
OwnershipProprietary
CMS Certification Number110128
LocationOne Meadows ParkwayVidalia, GA 30474 · Toombs County
Emergency services

Effingham Health System

Critical Access Hospitals · Springfield, GA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number111306
Location459 Ga Highway 119 SouthSpringfield, GA 31329 · Effingham County
Emergency services

Hilton Head Regional Medical Center

Acute Care Hospitals · Hilton Head Island, SC
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number420080
Location25 Hospital Center BlvdHilton Head Island, SC 29925 · Beaufort County
Emergency services Birthing friendly

Coastal Carolina Hospital

Acute Care Hospitals · Hardeeville, SC
2/5 CMS rating
OwnershipProprietary
CMS Certification Number420101
Location1000 Medical Center DriveHardeeville, SC 29927 · Jasper County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30046 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
$88.06 typical visit price
range $56.84 – $172.43
Typical copayment $22.01 (range $14.21 – $43.10)
Most-billed visit code 99203
Established Patient
$70.85 typical visit price
range $18.22 – $140.40
Typical copayment $17.71 (range $4.55 – $35.10)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

MEDHA SUTHAR
Student in an Organized Health Care Education/Training Program
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-0400
DR. MICHAEL CURTIS CRANFORD DO
Family Medicine
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-0400
TAL DVORA GREBER MD
Student in an Organized Health Care Education/Training Program
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (470) 659-2527
ANJIYA ASWANI
Student in an Organized Health Care Education/Training Program
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-0450
DR. MADHURIMA ADULLA M.D
Internal Medicine (Nephrology)
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-0450
DR. TARA LANE M.D.
Internal Medicine
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-0450
DR. MARTIN EPHREM FELIX JR. MD
Student in an Organized Health Care Education/Training Program
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-4072
KUSH NIGAM PATHAK DO
Student in an Organized Health Care Education/Training Program
665 DULUTH HWY STE 401
LAWRENCEVILLE, GA 30046
Gwinnett County (678) 312-0450

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Knopf's NPI number?

The NPI number for John Knopf is 1487116349. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Where is John Knopf located?

John Knopf practices at 665 Duluth Hwy Ste 401, Lawrenceville, GA 30046. The listed phone number is (912) 659-6806.

What is John Knopf's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is John Knopf enrolled in Medicare?

Yes. John Knopf is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Knopf accept?

Health plans from Alliant Health Plans, Inc. list John Knopf as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Knopf affiliated with any hospitals?

According to CMS data, John Knopf is affiliated with Memorial University Medical Center, Memorial Health Meadows Hospital, Effingham Health System, Hilton Head Regional Medical Center and Coastal Carolina Hospital.

When was this NPI record last updated?

The NPPES record for John Knopf was last updated on September 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.