DR. GREGORY C HENKELMANN MD
NPI 1639264237
Radiology - Radiation Oncology in Baton Rouge, LA

Q: What is Gregory Henkelmann's NPI number?

The NPI number for Gregory Henkelmann is 1639264237. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Q: What is Gregory Henkelmann's specialty?

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

Active since October 03, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

4950 ESSEN LANE, BATON ROUGE, LA 70809(225) 215-1136(225) 215-1658 Get Directions Write a Review

NPPES record last updated: November 23, 2009. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Gregory C Henkelmann Md NPPES

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

DR. GREGORY C HENKELMANN MD (NPI 1639264237) is an individual radiation oncology provider in Baton Rouge, Louisiana, licensed in Louisiana (07671R) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with St Tammany Parish Hospital, and is a graduate of Loma Linda University School Of Medicine (1984).

NPPES Registry Identity

NPI1639264237

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. GREGORY C HENKELMANNCredential: MD

Location Address4950 ESSEN LANEBaton Rouge, LA 70809

Mailing Address4950 Essen LaneBaton Rouge, LA 70809 · (225) 215-1136 · Fax (225) 215-1658

Phone(225) 215-1136

Fax(225) 215-1658

Sole ProprietorNo

Medical School CMSLoma Linda University School Of MedicineGraduated 1984

Enumeration DateOctober 3, 2006

Last NPPES UpdateNovember 23, 2009

✔ NPI 1639264237 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 LA · 07671R

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.

4950 ESSEN LANE, Baton Rouge, LA 70809

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Other Identifiers 3

Medicaid1377325LA

Medicare PIN546687290LA

Medicare UPINB65372LA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health 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

Dr. Gregory C Henkelmann 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 ID1850480906

PECOS Enrollment IDI20081215000001, I20241021003767

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 33

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

16,547 services143 patients

Injection, gadobutrol, 0.1 ml A9585

Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.

1,200 services15 patients

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.

962 services179 patients

Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session G6015

Intensity-modulated radiation therapy (IMRT) is a type of cancer treatment. It uses advanced technology to manipulate photon beams of radiation to conform to the shape of a tumor. IMRT allows for the radiation dose to conform more precisely to the three-dimensional shape of the tumor by modulatingâ€”or controllingâ€”the intensity of the radiation beam. This can result in better tumor control and less harm to healthy tissue.

794 services155 patients

Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev G6012

Radiation therapy involves directing high-energy particles to destroy cancer cells. The technique targets 3 or more areas, using custom blocks for precise focus. Tangential ports, wedges, and rotational beams adjust the radiation's path, while compensators balance radiation dose. Electron beam therapy with 6-10 mev energy is used for deep-seated tumors.

204 services29 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.

190 services43 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

186 services163 patients

Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries A9552

Fluorodeoxyglucose F-18 FDG is a radioactive drug used in PET scans. It helps doctors see how your tissues and organs are functioning. The drug is given in a specific dose, up to 45 millicuries, depending on your body size and the type of scan.

171 services147 patients

Continuing radiation therapy consultation per week 77336

Continuing radiation therapy consultation per week involves regular meetings with your healthcare team. These sessions help monitor your progress, manage side effects, and adjust your treatment plan if necessary. It's a key part of ensuring the effectiveness of your radiation therapy.

169 services77 patients

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.

154 services128 patients

Gallium ga-68 gozetotide, diagnostic, (illuccix), 1 millicurie A9596

Gallium Ga-68 Gozetotide (Illuccix) is a diagnostic procedure using a radioactive tracer. It helps visualize certain types of tumors in your body by injecting a small amount of radioactive material. This is safe and aids doctors in accurate diagnosis and treatment planning.

150 services27 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.

148 services59 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.

143 services32 patients

Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev G6013

This procedure involves using high-energy radiation to target and treat disease. It covers 3 or more distinct areas, using custom blocks to protect healthy tissue. Tangential ports, wedges, and rotational beams help direct the radiation. An electron beam of 11-19 million electron volts (mev) is used for deep-seated conditions.

119 services22 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.

112 services95 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.

81 services28 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.

57 services54 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.

48 services47 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

47 services43 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

37 services35 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.

35 services33 patients

Ct scan of soft tissue of neck with contrast 70491

A CT scan of the neck with contrast is a non-invasive imaging procedure. A special dye is administered to highlight the soft tissues in your neck, making them easier to see. This helps detect issues like infections, tumors, or other abnormalities.

32 services29 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.

30 services30 patients

Nuclear medicine study whole body with ct scan 78816

A Nuclear Medicine Study with a CT Scan is a diagnostic procedure. It uses a small amount of radioactive substance and a CT scan to create detailed images of your body. These images help doctors diagnose, monitor, and treat various conditions.

28 services21 patients

Special medical radiation therapy consultation 77370

A special medical radiation therapy consultation involves discussing the use of high-energy radiation to treat diseases, primarily cancer. It's a chance to understand the process, potential side effects, and benefits. It is a key step in planning your treatment.

22 services22 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.

21 services19 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

18 services12 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.

18 services18 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.

18 services18 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.

17 services16 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

16 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.

16 services14 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.

14 services14 patients

Hospital Affiliations CMS Care Compare

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

St Tammany Parish Hospital

Acute Care Hospitals · Covington, LA

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number190045

Location1202 S Tyler StreetCovington, LA 70433 · St. Tammany County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 70809 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

$164.73 typical visit price

range $53.43 – $164.73

Typical copayment $41.18 (range $13.35 – $41.18)

Most-billed visit code 99205

Established Patient

$67.06 typical visit price

range $16.64 – $133.62

Typical copayment $16.76 (range $4.16 – $33.40)

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.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

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.

FREDERIC T BILLINGS III M.D.

Internal Medicine (Hematology & Oncology)

4950 ESSEN LANE
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-1311

DR. MAURICE L KING M.D.

Radiology (Radiation Oncology)

4950 ESSEN LANE
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-0847

MARY BIRD PERKINS CANCER CENTER

Clinical Medical Laboratory

4950 ESSEN LANE
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 215-1223

DR. KELLIE D SCHMEECKLE M.D.

Internal Medicine (Hematology & Oncology)

4950 ESSEN LANE
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-1311

DR. SHELDON A JOHNSON M.D.

Radiology (Therapeutic Radiology)

4950 ESSEN LANE
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-0847

DR. STEPHEN D ANTROBUS M.D.

Dermatology (MOHS-Micrographic Surgery)

4950 ESSEN LANE, SUITE 301
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 763-9611

KENNETH KUANG HSIN LO MD

Radiology (Radiation Oncology)

4950 ESSEN LANE
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-0847

DR. ROBERT S FIELDS M.D.

Radiology (Therapeutic Radiology)

4950 ESSEN LANE
BATON ROUGE, LA 70809

East Baton Rouge Parish (225) 767-0847

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 Gregory Henkelmann's NPI number?

The NPI number for Gregory Henkelmann is 1639264237. It was assigned to this individual provider in the NPPES registry on October 3, 2006.

Where is Gregory Henkelmann located?

Gregory Henkelmann practices at 4950 Essen Lane, Baton Rouge, LA 70809. The listed phone number is (225) 215-1136.

What is Gregory Henkelmann's specialty?

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

Is Gregory Henkelmann enrolled in Medicare?

Yes. Gregory Henkelmann 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 Gregory Henkelmann accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health, Ambetter from Superior HealthPlan and AmeriHealth Caritas Next and 3 other insurers list Gregory Henkelmann 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 Gregory Henkelmann affiliated with any hospitals?

According to CMS data, Gregory Henkelmann is affiliated with St Tammany Parish Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Henkelmann was last updated on November 23, 2009. 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.