GREGORY LLOYD JOHNSON MD
NPI 1326025057
Radiology - Diagnostic Radiology in Dallas, TX

Q: What is Gregory Johnson's NPI number?

The NPI number for Gregory Johnson is 1326025057. It was assigned to this individual provider in the NPPES registry on December 23, 2005.

Q: What is Gregory Johnson's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Gregory Johnson was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since December 23, 2005PECOS EnrolledAccepts Medicare Assignment

2825 OAK LAWN AVE UNIT 192749, DALLAS, TX 75219(844) 389-5711(877) 880-2039 Get Directions Write a Review

NPPES record last updated: April 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 23, 2026, Nov 19, 2024, Sep 10, 2024 and 8 more (11 updates tracked since 2017).

On this page

About Gregory Lloyd Johnson Md NPPES

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

GREGORY LLOYD JOHNSON MD (NPI 1326025057) is an individual diagnostic radiology provider in Dallas, Texas, licensed in Washington (MD00044283) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of State University Of New York Downstate Medical Center (1994).

NPPES Registry Identity

NPI1326025057

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameGREGORY LLOYD JOHNSONCredential: MD

Location Address2825 OAK LAWN AVE UNIT 192749Dallas, TX 75219-4688

Mailing Address2825 Oak Lawn Ave Unit 192749Dallas, TX 75219-4688 · (510) 683-9500 · Fax (877) 880-2039

Phone(844) 389-5711

Fax(877) 880-2039

Sole ProprietorNo

Medical School CMSState University Of New York Downstate Medical CenterGraduated 1994

Enumeration DateDecember 23, 2005

Last NPPES UpdateApril 23, 202611 updates tracked since enumeration

NPPES CertifiedApril 23, 2026

✔ NPI 1326025057 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in WA · MD00044283✔ Licensed in GA · 059314✔ Licensed in NC · 2005-01647✔ Licensed in OH · 35.137915✔ Licensed in CT · 66469✔ Licensed in KY · 54635✔ Licensed in TX · Q9645

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

2825 OAK LAWN AVE UNIT 192749, Dallas, TX 75219

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory Lloyd Johnson 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 ID6507762499

PECOS Enrollment IDI20050427000625

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 Reassignments

Medicare enrollment records show Gregory Johnson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Blue Ridge Healthcare Medical Group Inc

889 mi

Diagnostic Radiology

2201 S. STERLING STREET
Morganton, NC 28655

Reassigned Medicare billing, Washington enrollment
2 clinicians in this Medicare group

NPI 1639244478 (828) 580-6900

Osu Radiology LLC

913 mi

Diagnostic Radiology

520 W 10TH AVE
Columbus, OH 43210

Reassigned Medicare billing, Washington enrollment
3 clinicians in this Medicare group

NPI 1912956814 (614) 293-8315

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

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

957 services793 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

457 services435 patients

Ct scan of chest with contrast 71260

162 services143 patients

Ct scan of chest without contrast 71250

113 services108 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

15 services15 patients

Hospital Affiliations CMS Care Compare 2

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

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number140010

Location2650 Ridge AveEvanston, IL 60201 · Cook County

Emergency services Birthing friendly

Ohio State University State Health System

Acute Care Hospitals · Columbus, OH

4/5 CMS rating

OwnershipGovernment - State

CMS Certification Number360085

Location410 West 10th AvenueColumbus, OH 43210 · Franklin County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75219 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

$88.19 typical visit price

range $57.18 – $172.86

Typical copayment $22.04 (range $14.29 – $43.21)

Most-billed visit code 99203

Established Patient

$71.28 typical visit price

range $18.48 – $141.20

Typical copayment $17.82 (range $4.62 – $35.30)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…

100%54 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

AJLA KADRIBEGIC MD

Radiology (Diagnostic Radiology)