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DR. JOHN T HAMM M.D.
NPI 1023075660
Internal Medicine - Medical Oncology in Louisville, KY

Active since April 27, 2006PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
315 E BROADWAY, LOUISVILLE, KY 40202(502) 629-2500(502) 629-3166 Get Directions Write a Review

NPPES record last updated: January 19, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 19, 2021, Feb 2, 2017, Feb 11, 2016 (3 updates tracked since 2016).

About Dr. John T Hamm M.d. NPPES

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

DR. JOHN T HAMM M.D. (NPI 1023075660) is an individual medical oncology provider in Louisville, Kentucky, licensed in Kentucky (22818) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Clark Memorial Hospital, and is a graduate of Vanderbilt University School Of Medicine (1982).

NPPES Registry Identity

NPI1023075660
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameDR. JOHN T HAMMCredential: M.D.
Location Address315 E BROADWAYLouisville, KY 40202-1703
Mailing Address315 E BroadwayLouisville, KY 40202-1703 · (502) 272-5754 · Fax (502) 272-5339
Phone(502) 629-2500
Fax(502) 629-3166
Sole ProprietorNo
Medical School CMSVanderbilt University School Of MedicineGraduated 1982
Enumeration DateApril 27, 2006
Last NPPES UpdateJanuary 19, 20213 updates tracked since enumeration
NPPES CertifiedJanuary 19, 2021
✔ NPI 1023075660 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in KY · 22818
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
315 E BROADWAY, Louisville, KY 40202
Open in Google Maps ↗

Other Identifiers 8

Other000000044826KY · Anthem Provider Numb
Other110089561KY · Railroad Medicare
Medicaid200042640IN
Medicaid64228182KY
Other4045190KY · Aetna Provider Numb
Other1050401KY · Passport Provider Numb
Other000020583CKY · Humana Provider Numb
Other2527651KY · Cigna Provider Numb

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Home State Health, Ambetter from Meridian 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. John T Hamm 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 ID2062600802
PECOS Enrollment IDI20101221000803
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 6

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.
479 services189 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.
273 services55 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.
142 services70 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.
54 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.
27 services27 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.
23 services15 patients

Hospital Affiliations CMS Care Compare 2

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

Clark Memorial Hospital

Acute Care Hospitals · Jeffersonville, IN
2/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number150009
Location1220 Missouri AveJeffersonville, IN 47130 · Clark County
Emergency services Birthing friendly

Norton Hospitals, Inc

Acute Care Hospitals · Louisville, KY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180088
Location200 East Chestnut StreetLouisville, KY 40202 · Jefferson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 40202 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
$162.27 typical visit price
range $52.76 – $162.27
Typical copayment $40.56 (range $13.19 – $40.56)
Most-billed visit code 99205
Established Patient
$93.94 typical visit price
range $16.53 – $131.99
Typical copayment $23.48 (range $4.13 – $32.99)
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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability100
Improvement Activities40

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.

MR. DAVID P FIGGE ARNP
Nurse Practitioner
315 E BROADWAY
LOUISVILLE, KY 40202
Jefferson County (502) 629-2500
GATEWAY AT NORTON REHABILITATION HOSPITAL, LLC
Rehabilitation Hospital
315 E BROADWAY
LOUISVILLE, KY 40202
Jefferson County (502) 315-8300
MS. ANDREA L. LEWIS MS
Genetic Counselor, MS
315 E BROADWAY, 4TH FLOOR
LOUISVILLE, KY 40202
Jefferson County (502) 629-4108
BRENDA SUE FOREMAN ARNP-CS
Nurse Practitioner (Family)
315 E BROADWAY
LOUISVILLE, KY 40202
Jefferson County (502) 629-2500
RUSSELL ALEXANDER SHATFORD MD
Surgery (Surgery of the Hand)
315 E BROADWAY, SUITE 195
LOUISVILLE, KY 40202
Jefferson County (502) 629-4263
MS. BARBARA A HARMON-COWHERD OTR/L, CHT
Occupational Therapist (Hand)
315 E BROADWAY, SUITE 195, M-04
LOUISVILLE, KY 40202
Jefferson County (502) 589-5961
NORTON ENTERPRISES, INC.
Clinic/Center (Urgent Care)
315 E BROADWAY, STE# 185
LOUISVILLE, KY 40202
Jefferson County (502) 629-4150
AMANDA ROSE LYONS DNP, FNP-C
Nurse Practitioner (Family)
315 E BROADWAY
LOUISVILLE, KY 40202
Jefferson County (502) 629-5469

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 Hamm's NPI number?

The NPI number for John Hamm is 1023075660. It was assigned to this individual provider in the NPPES registry on April 27, 2006.

Where is John Hamm located?

John Hamm practices at 315 E Broadway, Louisville, KY 40202. The listed phone number is (502) 629-2500.

What is John Hamm's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is John Hamm enrolled in Medicare?

Yes. John Hamm 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 Hamm accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Home State Health, Ambetter from Meridian and Ambetter of Tennessee and 1 other insurer list John Hamm 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 Hamm affiliated with any hospitals?

According to CMS data, John Hamm is affiliated with Clark Memorial Hospital and Norton Hospitals, Inc.

When was this NPI record last updated?

The NPPES record for John Hamm was last updated on January 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.