DR. DON RYAN DUFF MD
NPI 1154325900
Internal Medicine - Nephrology in Louisville, KY

Active since June 09, 2005PECOS EnrolledAccepts Medicare Assignment
97.68/100
CMS Quality Rating
3999 DUTCHMANS LN STE 4A, LOUISVILLE, KY 40207(502) 365-2655(502) 365-2770 Get Directions Write a Review

NPPES record last updated: August 27, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 31, 2020, Jun 21, 2019, Mar 17, 2018 and 2 more (5 updates tracked since 2017).

About Dr. Don Ryan Duff Md NPPES

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

DR. DON RYAN DUFF MD (NPI 1154325900) is an individual nephrology provider in Louisville, Kentucky, licensed in Kentucky (25228) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Jewish Hospital & St Mary's Healthcare, and maintains a secondary practice location in New Albany.

NPPES Registry Identity

NPI1154325900
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. DON RYAN DUFFCredential: MD
Location Address3999 DUTCHMANS LN STE 4ALouisville, KY 40207-4745
Mailing Address3999 Dutchmans Ln Ste 4aLouisville, KY 40207-4745 · (502) 365-2655 · Fax (502) 365-2770
Fax(502) 365-2770
Sole ProprietorNo
Medical School CMSUniversity Of Louisville School Of MedicineGraduated 1986
Enumeration DateJune 9, 2005
Last NPPES UpdateAugust 27, 20245 updates tracked since enumeration
NPPES CertifiedAugust 27, 2024
NPI 1154325900 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in KY · 25228
Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License 25228 (KY)
3999 DUTCHMANS LN STE 4A, Louisville, KY 40207

Secondary Practice Location 1

Location 1727 Mount Tabor Rd Ste ANew Albany, IN 47150-6951 · Phone (812) 981-3111 · Fax (812) 981-3829

Other Identifiers 4

Other000000062786KY · Anthem
Medicaid64252281KY
Other1050701KY · Passport
Medicaid200014920AIN

Accepted 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. Don Ryan Duff 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 ID3678471117
PECOS Enrollment IDI20110121000284
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 12

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.

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.
763 services144 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.
430 services374 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.
189 services151 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.
149 services112 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.
128 services85 patients
Dialysis services, 2-3 physician visits per month (20 years or older) 90961
Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.
121 services31 patients

Hospital Affiliations CMS Care Compare 3

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

Jewish Hospital & St Mary's Healthcare

Acute Care Hospitals · Louisville, KY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180040
Location200 Abraham Flexner WayLouisville, KY 40202 · Jefferson County
Emergency services

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

Baptist Health Louisville

Acute Care Hospitals · Louisville, KY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180130
Location4000 Kresge WayLouisville, KY 40207 · Jefferson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 40207 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
$122.77 typical visit price
range $52.76 – $162.27
Typical copayment $30.69 (range $13.19 – $40.56)
Most-billed visit code 99204
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.

97.68/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality100
Improvement Activities40
Cost75.63

Reported Quality Measures

Advance Care Plan
99%1,196 patients4/55-star benchmark: 100%
Controlling High Blood Pressure
65%1,647 patients3/55-star benchmark: 98%
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
Lower rates are better for this measure.
12%638 patients4/55-star benchmark: 98%
Documentation of Current Medications in the Medical Record
100%2,987 patients5/55-star benchmark: 100%
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
100%236 patients5/55-star benchmark: 100%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 100% · 1,957 patients
Patients screened: 100% · 1,957 patients
100%226 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 6

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers17 claims17 services$13.83 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers17 claims17 services$58.91 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers19 claims2,970 services$0.32 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers24 claims2,100 services$0.20 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
1 supplier11 claims11 services$18.96 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
3 suppliers30 claims33 services$12.65 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 5

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

Internal Medicine (Nephrology)
3999 DUTCHMANS LN STE 4A
LOUISVILLE, KY 40207
Internal Medicine (Nephrology)
3999 DUTCHMANS LN STE 4A
LOUISVILLE, KY 40207
Internal Medicine (Nephrology)
3999 DUTCHMANS LN STE 4A
LOUISVILLE, KY 40207
Physician Assistant
3999 DUTCHMANS LN STE 4A
LOUISVILLE, KY 40207
Nurse Practitioner
3999 DUTCHMANS LN STE 4A
LOUISVILLE, KY 40207

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 Don Duff's NPI number?

The NPI number for Don Duff is 1154325900. It was assigned to this individual provider in the NPPES registry on June 9, 2005.

Where is Don Duff located?

Don Duff practices at 3999 Dutchmans Ln Ste 4A, Louisville, KY 40207. The listed phone number is (502) 365-2655.

What is Don Duff's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Don Duff enrolled in Medicare?

Yes. Don Duff 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 Don Duff accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Home State Health, Ambetter of Tennessee and Anthem Blue Cross and Blue Shield and 1 other insurer list Don Duff 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 Don Duff affiliated with any hospitals?

According to CMS data, Don Duff is affiliated with Jewish Hospital & St Mary's Healthcare, Norton Hospitals, Inc and Baptist Health Louisville.

When was this NPI record last updated?

The NPPES record for Don Duff was last updated on August 27, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.