JOHN HAROLD GIESLER M.D.
NPI 1649261926
Radiology - Radiation Oncology in Riverdale, GA

Q: What is John Giesler's NPI number?

The NPI number for John Giesler is 1649261926. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Q: What is John Giesler'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 John Giesler was last updated on July 15, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 November 04, 2005PECOS EnrolledAccepts Medicare Assignment

255 PROFESSIONAL CT, RIVERDALE, GA 30274(770) 997-8424 Get Directions Write a Review

NPPES record last updated: July 15, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About John Harold Giesler M.d. NPPES

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

JOHN HAROLD GIESLER M.D. (NPI 1649261926) is an individual radiation oncology provider in Riverdale, Georgia, licensed in Georgia (35882) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Northside Hospital, and is a graduate of Ohio Medical University (1987).

NPPES Registry Identity

NPI1649261926

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameJOHN HAROLD GIESLERCredential: M.D.

Location Address255 PROFESSIONAL CTRiverdale, GA 30274-2531

Mailing Address255 Professional CtRiverdale, GA 30274-2531 · (770) 337-8424

Phone(770) 997-8424

Sole ProprietorNo

Medical School CMSOhio Medical UniversityGraduated 1987

Enumeration DateNovember 4, 2005

Last NPPES UpdateJuly 15, 2010

✔ NPI 1649261926 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

License✔ Licensed in GA · 35882

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.

255 PROFESSIONAL CT, Riverdale, GA 30274

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Other Identifiers 20

Other920000950GA · Railroad Medicare

Other2402350GA · United Healthcare

Other300037175GA · Railroad Medicare

Other2405450GA · United Healthcare

Other2403450GA · United Healthcare

Medicaid00582887CGA

Medicaid00582887DGA

Other450638GA · Bc/bs Ga

Other480640GA · Bc/bs Ga

Medicare ID-Type Unspecified92BDBDCGA

Medicare ID-Type Unspecified92BDBCZGA

Other920000948GA · Railroad Medicare

Other45062GA · Bc/bs Ga

Other450641GA · Bc/bs Ga

Medicare ID-Type Unspecified92BDBCXGA

Medicare UPINF53639GA

Medicaid00582887BGA

Other920000946GA · Railroad Medicare

Medicare ID-Type Unspecified92BDBDDGA

Medicare ID-Type Unspecified92BDBDBGA

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Harold Giesler M.d. 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 ID1254223399

PECOS Enrollment IDI20040325000749

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.

Areas of Expertise CMS Part B claims 23

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.

411 services45 patients

Ct guidance for insertion of radiation therapy fields 77014

157 services21 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.

120 services56 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.

89 services31 patients

Radiation treatment management, 5 treatment sessions 77427

54 services31 patients

Calculation of radiation therapy dose 77300

47 services22 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.

40 services21 patients

Design and construction of complex radiation treatment device 77334

38 services17 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.

32 services32 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.

27 services27 patients

Complex radiation therapy planning 77263

26 services26 patients

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

21 services21 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.

21 services20 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.

20 services17 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.

19 services16 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.

19 services18 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

17 services16 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.

13 services13 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

13 services13 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

12 services11 patients

3d radiation therapy planning 77295

12 services11 patients

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

12 services12 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.

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.

Northside Hospital

Acute Care Hospitals · Atlanta, GA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110161

Location1000 Johnson Ferry Road, NEAtlanta, GA 30342 · Fulton County

Birthing friendly

Piedmont Henry Hospital

Acute Care Hospitals · Stockbridge, GA

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number110191

Location1133 Eagle's Landing ParkwayStockbridge, GA 30281 · Henry County

Emergency services Birthing friendly

Piedmont Fayette Hospital

Acute Care Hospitals · Fayetteville, GA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number110215

Location1255 Highway 54 WestFayetteville, GA 30214 · Fayette County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 30274 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 3

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

INSTITUTE FOR RADIATION THERAPY,INC.

Radiology (Radiation Oncology)

255 PROFESSIONAL CT
RIVERDALE, GA 30274

Clayton County (770) 907-0554

J. WARNER RAY MD

Radiology (Radiation Oncology)

255 PROFESSIONAL CT
RIVERDALE, GA 30274

Clayton County (770) 997-8424

SOUTHERN CRESCENT RADIATION ONCOLOGY CENTER LLC

Radiology (Radiation Oncology)

255 PROFESSIONAL CT
RIVERDALE, GA 30274

Clayton County (770) 997-8424

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 Giesler's NPI number?

The NPI number for John Giesler is 1649261926. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Where is John Giesler located?

John Giesler practices at 255 Professional Ct, Riverdale, GA 30274. The listed phone number is (770) 997-8424.

What is John Giesler's specialty?

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

Is John Giesler enrolled in Medicare?

Yes. John Giesler 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 Giesler accept?

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

According to CMS data, John Giesler is affiliated with Northside Hospital, Piedmont Henry Hospital and Piedmont Fayette Hospital.

When was this NPI record last updated?

The NPPES record for John Giesler was last updated on July 15, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.