JOHN CLARK HENEGAN JR. M.D.
NPI 1114188471
Internal Medicine - Hematology & Oncology in Jackson, MS

Q: What is John Henegan's NPI number?

The NPI number for John Henegan is 1114188471. It was assigned to this individual provider in the NPPES registry on June 19, 2008.

Q: What is John Henegan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for John Henegan was last updated on August 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 June 19, 2008PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

2500 N STATE ST, JACKSON, MS 39216(601) 984-5616(601) 984-5689 Get Directions Write a Review

NPPES record last updated: August 23, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About John Clark Henegan Jr. M.d. NPPES

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

JOHN CLARK HENEGAN JR. M.D. (NPI 1114188471) is an individual hematology & oncology provider in Jackson, Mississippi, licensed in Mississippi (22684) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with University Of Mississippi Med Center, and is a graduate of University Of Mississippi School Of Medicine (2008).

NPPES Registry Identity

NPI1114188471

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameJOHN CLARK HENEGAN JR.Credential: M.D.

Location Address2500 N STATE STJackson, MS 39216-4500

Mailing Address2500 N State StJackson, MS 39216-4500 · (601) 984-5616 · Fax (601) 984-5689

Phone(601) 984-5616

Fax(601) 984-5689

Sole ProprietorNo

Medical School CMSUniversity Of Mississippi School Of MedicineGraduated 2008

Enumeration DateJune 19, 2008

Last NPPES UpdateAugust 23, 2016

✔ NPI 1114188471 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in MS · 22684

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2500 N STATE ST, Jackson, MS 39216

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Other Identifiers 2

Medicare PIN511522YJ5DMS

Medicaid02433543MS

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 Health 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

John Clark Henegan Jr. 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 ID9830418177

PECOS Enrollment IDI20160718000699

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 Reassignment

Medicare enrollment records show John Henegan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

State Of Mississippi - University Of Mississippi Medical Center

Same address

General Acute Care Hospital

2500 N STATE ST
Jackson, MS 39216

Reassigned Medicare billing, Mississippi enrollment
1,932 clinicians in this Medicare group

NPI 1154317527 (601) 984-1000

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 15

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.

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.

335 services136 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.

208 services113 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.

164 services70 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

136 services48 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.

68 services34 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

56 services14 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

50 services29 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

50 services35 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

40 services38 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.

33 services33 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

29 services28 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

21 services21 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.

21 services13 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

12 services11 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

12 services11 patients

Hospital Affiliations CMS Care Compare 5

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

University Of Mississippi Med Center

Acute Care Hospitals · Jackson, MS

2/5 CMS rating

OwnershipGovernment - State

CMS Certification Number250001

Location2500 N State StJackson, MS 39216 · Hinds County

Emergency services Birthing friendly

Merit Health Madison

Acute Care Hospitals · Canton, MS

OwnershipProprietary

CMS Certification Number250038

Location161 River Oaks DriveCanton, MS 39046 · Madison County

Emergency services

Mississippi Baptist Medical Center

Acute Care Hospitals · Jackson, MS

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number250102

Location1225 N State StJackson, MS 39202 · Hinds County

Emergency services Birthing friendly

Mississippi Methodist Rehab Ctr

Acute Care Hospitals · Jackson, MS

OwnershipVoluntary non-profit - Private

CMS Certification Number250152

Location1350 E Woodrow Wilson DrJackson, MS 39216 · Hinds County

University Of Mississippi Medical Center- Grenada

Acute Care Hospitals · Grenada, MS

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number250168

Location960 Avent DriveGrenada, MS 38901 · Grenada County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39216 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

$159.18 typical visit price

range $51.65 – $159.18

Typical copayment $39.79 (range $12.91 – $39.79)

Most-billed visit code 99205

Established Patient

$92.20 typical visit price

range $16.15 – $129.61

Typical copayment $23.05 (range $4.03 – $32.40)

Most-billed visit code 99214

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

Individually scored

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, without mattress E0261

DME-Hospital Beds · category DB000N

1 supplier12 claims12 services$62.04 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

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