DR. JULIAN A JOHNSON MD
NPI 1215228614
Radiology - Radiation Oncology in Atlanta, GA

Q: What is Julian Johnson's NPI number?

The NPI number for Julian Johnson is 1215228614. It was assigned to this individual provider in the NPPES registry on April 20, 2011.

Q: What is Julian Johnson's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Julian Johnson was last updated on January 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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 April 20, 2011PECOS EnrolledAccepts Medicare Assignment

1800 HOWELL MILL RD NW STE LL10, ATLANTA, GA 30318(404) 425-7900 Get Directions Write a Review

NPPES record last updated: January 10, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 10, 2025, Jul 14, 2016 (2 updates tracked since 2016).

On this page

About Dr. Julian A Johnson Md NPPES

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

DR. JULIAN A JOHNSON MD (NPI 1215228614) is an individual radiation oncology provider in Atlanta, Georgia, licensed in Georgia (90312) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with Piedmont Cartersville Medical Center, and maintains a secondary practice location in Portland.

NPPES Registry Identity

NPI1215228614

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. JULIAN A JOHNSONCredential: MD

Location Address1800 HOWELL MILL RD NW STE LL10Atlanta, GA 30318-2593

Mailing AddressPo Box 102321Atlanta, GA 30368-2321

Phone(404) 425-7900

Sole ProprietorNo

Medical School CMSHarvard Medical SchoolGraduated 2011

Enumeration DateApril 20, 2011

Last NPPES UpdateJanuary 10, 20252 updates tracked since enumeration

NPPES CertifiedJanuary 10, 2025

✔ NPI 1215228614 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

Licenses✔ Licensed in GA · 90312✔ Licensed in ME · MD21198

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

1800 HOWELL MILL RD NW STE LL10, Atlanta, GA 30318

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Secondary Practice Location 1

Location 122 Bramhall StPortland, ME 04102-3134 · Phone (207) 662-2276

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of Alabama and more.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

Dr. Julian A 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 ID840514105

PECOS Enrollment IDI20220118001758

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 Julian Johnson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Peachtree Radiation Oncology Services PC

1.1 mi

Radiation Oncology

1968 PEACHTREE RD NW, DEPT OF RADIATION ONCOLOGY
Atlanta, GA 30309

Reassigned Medicare billing, Georgia enrollment
7 clinicians in this Medicare group

NPI 1750496527 (404) 605-3319

North Atlanta Professional Services LLC

8.0 mi

Psychologist

1000 JOHNSON FERRY RD NE
Atlanta, GA 30342

Reassigned Medicare billing, Georgia enrollment
783 clinicians in this Medicare group

NPI 1316959869 (855) 709-4535

Piedmont Providers LLC

46 mi

Internal Medicine

220 J L WHITE DR STE 120
Jasper, GA 30143

Reassigned Medicare billing, Georgia enrollment
689 clinicians in this Medicare group

NPI 1548273592 (770) 801-2500

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 24

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 guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

903 services58 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

191 services68 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

177 services52 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

104 services74 patients

Calculation of radiation therapy dose 77300

84 services23 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

83 services43 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

62 services62 patients

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

60 services56 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

57 services57 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.

43 services41 patients

High precision radiation therapy planning 77301

High precision radiation therapy planning involves detailed mapping of your body to target cancer cells accurately. Advanced imaging techniques help identify the exact location of the tumor, minimizing harm to healthy tissues. This personalized approach enhances effectiveness and reduces side effects.

41 services41 patients

Design and construction of complex radiation treatment device 77334

31 services15 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

23 services22 patients

Design and construction of simple radiation treatment device 77332

A simple radiation treatment device is designed and built to target specific areas in your body with high energy rays. This process is carefully planned to ensure that the radiation accurately reaches the area needing treatment, while minimizing exposure to healthy tissues.

22 services17 patients

Special radiation treatment 77470

Special radiation treatment is a medical procedure that uses high-energy rays to destroy or damage cancer cells. It's a targeted approach that aims to minimize harm to healthy tissues. The treatment duration varies based on individual health conditions.

21 services18 patients

Complex radiation therapy planning 77263

19 services19 patients

Radiation treatment management, 5 treatment sessions 77427

18 services14 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

14 services14 patients

3d radiation therapy planning 77295

14 services13 patients

High precision radiation therapy planning 77301

12 services12 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

12 services12 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

12 services12 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Piedmont Cartersville Medical Center

Acute Care Hospitals · Cartersville, GA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110030

Location960 Joe Frank Harris ParkwayCartersville, GA 30120 · Bartow County

Emergency services Birthing friendly

Piedmont Hospital

Acute Care Hospitals · Atlanta, GA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110083

Location1968 Peachtree Rd NWAtlanta, GA 30309 · Fulton County

Emergency services Birthing friendly

Northside Hospital Gwinnett

Acute Care Hospitals · Lawrenceville, GA

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number110087

Location1000 Medical Center BoulevardLawrenceville, GA 30046 · Gwinnett County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30318 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

$172.43 typical visit price

range $56.84 – $172.43

Typical copayment $43.10 (range $14.21 – $43.10)

Most-billed visit code 99205

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 4

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

DR. SANDRA LYNN GREGORY MD

Radiology (Radiation Oncology)

1800 HOWELL MILL RD NW STE LL10
ATLANTA, GA 30318

Fulton County (404) 425-7900

KIA D CAMPBELL P.A.

Physician Assistant

1800 HOWELL MILL RD NW STE LL10
ATLANTA, GA 30318

Fulton County (404) 425-7900

LEONEL ALAN KAHN MD

Radiology (Radiation Oncology)

1800 HOWELL MILL RD NW STE LL10
ATLANTA, GA 30318

Fulton County (404) 425-7900

DR. COURTNEY POLLARD III M.D., PH.D.

Radiology (Radiation Oncology)

1800 HOWELL MILL RD NW STE LL10
ATLANTA, GA 30318

Fulton County (404) 425-7900

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 Julian Johnson's NPI number?

The NPI number for Julian Johnson is 1215228614. It was assigned to this individual provider in the NPPES registry on April 20, 2011.

Where is Julian Johnson located?

Julian Johnson practices at 1800 Howell Mill Rd NW Ste Ll10, Atlanta, GA 30318. The listed phone number is (404) 425-7900.

What is Julian Johnson's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Julian Johnson enrolled in Medicare?

Yes. Julian Johnson 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.

Which organizations bill Medicare for Julian Johnson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Julian Johnson reassigns Medicare benefits to 3 organizations: Peachtree Radiation Oncology Services PC (Atlanta, GA), North Atlanta Professional Services LLC (Atlanta, GA) and Piedmont Providers LLC (Jasper, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Julian Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Julian Johnson accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list Julian Johnson 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 Julian Johnson affiliated with any hospitals?

According to CMS data, Julian Johnson is affiliated with Piedmont Cartersville Medical Center, Piedmont Hospital and Northside Hospital Gwinnett.

When was this NPI record last updated?

The NPPES record for Julian Johnson was last updated on January 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.