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ASIF SULTAN M.D.
NPI 1821278474
Internal Medicine - Nephrology in Knoxville, TN

Active since November 13, 2007PECOS Enrolled
93.81/100
CMS Quality Rating
2001 LAUREL AVE, SUITE 202, KNOXVILLE, TN 37916(865) 637-5186(865) 637-5121 Get Directions Write a Review

NPPES record last updated: November 13, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Asif Sultan M.d. NPPES

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

ASIF SULTAN M.D. (NPI 1821278474) is an individual nephrology provider in Knoxville, Tennessee, licensed in Tennessee (42655) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS, is affiliated with University Health System, Inc, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1821278474
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameASIF SULTANCredential: M.D.
Location Address2001 LAUREL AVE, SUITE 202Knoxville, TN 37916-1810
Mailing Address2001 Laurel Ave, Suite 202Knoxville, TN 37916-1810 · (865) 637-5186 · Fax (865) 637-5121
Phone(865) 637-5186
Fax(865) 637-5121
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateNovember 13, 2007
✔ NPI 1821278474 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in TN · 42655
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.
2001 LAUREL AVE, Knoxville, TN 37916
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter Health, Ambetter of Alabama 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 (PECOS)

Asif Sultan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8325128523
PECOS Enrollment IDI20080104000318
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 Asif Sultan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Knoxville Nephrology Associates LLC
7.7 mi
Nephrology
6826 TICE LN
Knoxville, TN 37918
  • Reassigned Medicare billing, Tennessee enrollment
  • 3 clinicians in this Medicare group
NPI 1184031965 (865) 377-7199

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 10

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 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.
256 services92 patients
Dialysis services, 4 or more physician visits per month (20 years or older) 90960
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.
210 services32 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.
152 services94 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.
146 services89 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.
144 services122 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
135 services58 patients

Hospital Affiliations CMS Care Compare 5

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

University Health System, Inc

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440015
Location1924 Alcoa HighwayKnoxville, TN 37920 · Knox County
Emergency services Birthing friendly

Morristown Hamblen Hospital Association

Acute Care Hospitals · Morristown, TN
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number440030
Location908 W 4th North StMorristown, TN 37814 · Hamblen County
Emergency services Birthing friendly

Methodist Medical Center Of Oak Ridge

Acute Care Hospitals · Oak Ridge, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440034
Location990 Oak Ridge Turnpike Box 529Oak Ridge, TN 37830 · Anderson County
Emergency services Birthing friendly

Claiborne Medical Center

Acute Care Hospitals · Tazewell, TN
OwnershipGovernment - Local
CMS Certification Number440057
Location1850 Old Knoxville HighwayTazewell, TN 37879 · Claiborne County
Emergency services

Fort Sanders Regional Medical Center

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440125
Location1901 W Clinch AveKnoxville, TN 37916 · Knox County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37916 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
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.

93.81/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality65.1
Promoting Interoperability96
Improvement Activities40
Cost89.78

Reported Quality Measures

Controlling High Blood Pressure
67%542 patients3/55-star benchmark: 91%
Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)
Lower rates are better for this measure.
70%212 patients2/55-star benchmark: 91%
Documentation of Current Medications in the Medical Record
87%1,514 patients4/55-star benchmark: 100%
e-Prescribing
100%1,188 patients5/55-star benchmark: 100%
Falls: Screening for Future Fall Risk
0%563 patients1/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
20%760 patients1/55-star benchmark: 98%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
0%629 patients1/55-star benchmark: 97%
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
42%261 patients3/55-star benchmark: 61%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 90% · 522 patients
Patients screened: 99% · 522 patients
35%77 patients2/55-star benchmark: 100%
Provide Patients Electronic Access to Their Health Information
100%772 patients5/55-star benchmark: 100%
Use of High-Risk Medications in Older Adults
Lower rates are better for this measure.
Patients appropriateDiagnosis: 0% · 571 patients
Patients totalRate: 1% · 571 patients
1%571 patients4/55-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.

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.

SCOTT A WEGRYN MD
Radiology (Vascular & Interventional Radiology)
2001 LAUREL AVE, SUITE N304
KNOXVILLE, TN 37916
Knox County (865) 546-9484
SAMUEL H FEASTER MD
Radiology (Neuroradiology)
2001 LAUREL AVE, SUITE N304
KNOXVILLE, TN 37916
Knox County (865) 546-9484
DR. SUNG YONG BAE M.D.
Internal Medicine
2001 LAUREL AVE, SUITE 206
KNOXVILLE, TN 37916
Knox County (865) 524-3131
DR. VIJAY R. PATIL M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2001 LAUREL AVE, SUITE 201
KNOXVILLE, TN 37916
Knox County (865) 522-3355
DR. WILLIAM L. JOHNSON MD
Orthopaedic Surgery
2001 LAUREL AVE, SUITE 402 NEWLAND PROFESSIONAL BLDG.
KNOXVILLE, TN 37916
Knox County (865) 632-5577
EAST TENNESSEE NEPHROLOGY PC
Internal Medicine (Nephrology)
2001 LAUREL AVE, STE 206
KNOXVILLE, TN 37916
Knox County (865) 524-3131
HEJUNG KIM MD
Radiology (Nuclear Radiology)
2001 LAUREL AVE, SUITE N304
KNOXVILLE, TN 37916
Knox County (865) 766-6870
MAUREEN THERESA CADMUS MSN APN RN
Nurse Practitioner
2001 LAUREL AVE, STE 204
KNOXVILLE, TN 37916
Knox County (865) 673-0288

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 Asif Sultan's NPI number?

The NPI number for Asif Sultan is 1821278474. It was assigned to this individual provider in the NPPES registry on November 13, 2007.

Where is Asif Sultan located?

Asif Sultan practices at 2001 Laurel Ave Suite 202, Knoxville, TN 37916. The listed phone number is (865) 637-5186.

What is Asif Sultan's specialty?

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

Is Asif Sultan enrolled in Medicare?

Yes. Asif Sultan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Asif Sultan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Asif Sultan reassigns Medicare benefits to Knoxville Nephrology Associates LLC (Knoxville, TN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Asif Sultan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Asif Sultan accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 4 other insurers list Asif Sultan 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 Asif Sultan affiliated with any hospitals?

According to CMS data, Asif Sultan is affiliated with University Health System, Inc, Morristown Hamblen Hospital Association, Methodist Medical Center Of Oak Ridge, Claiborne Medical Center and Fort Sanders Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Asif Sultan was last updated on November 13, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.