JOHN B WILLIAMS MD
NPI 1982605598
Internal Medicine - Endocrinology, Diabetes & Metabolism in Knoxville, TN

Active since August 04, 2005PECOS Enrolled
1450 DOWELL SPRINGS BLVD, SUITE 300, KNOXVILLE, TN 37909(865) 637-8812(865) 637-8865 Get Directions Write a Review

NPPES record last updated: May 17, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 17, 2021, Dec 16, 2016 (2 updates tracked since 2016).

About John B Williams Md NPPES

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

JOHN B WILLIAMS MD (NPI 1982605598) is an individual endocrinology, diabetes & metabolism provider in Knoxville, Tennessee, licensed in Tennessee (24814) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982605598
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameJOHN B WILLIAMSCredential: MD
Location Address1450 DOWELL SPRINGS BLVD, SUITE 300Knoxville, TN 37909
Mailing Address1450 Dowell Springs Blvd, Suite 300Knoxville, TN 37909 · (865) 637-8812 · Fax (865) 637-8865
Fax(865) 637-8865
Sole ProprietorNo
Enumeration DateAugust 4, 2005
Last NPPES UpdateMay 17, 20212 updates tracked since enumeration
NPPES CertifiedMay 17, 2021
NPI 1982605598 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License Licensed in TN · 24814
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
1450 DOWELL SPRINGS BLVD, Knoxville, TN 37909

Other Identifiers 1

MedicaidQ017046TN

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 (PECOS)

John B Williams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 24

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.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
2,700 services26 patients
Insertion of needle into vein for collection of blood sample 36415
This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.
478 services321 patients
Blood test, thyroid stimulating hormone (tsh) 84443
A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.
373 services261 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.
255 services170 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.
188 services153 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
143 services77 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37909 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.

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.

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
7 suppliers41 claims517 services$17.90 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
7 suppliers42 claims1,315 services$2.31 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
20 suppliers56 claims242 services$6.39 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
4 suppliers39 claims39 services$306.68 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
5 suppliers17 claims1,820 services$7.08 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
11 suppliers258 claims258 services$192.61 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.

Nurse Practitioner
1450 DOWELL SPRINGS BLVD, SUITE 300
KNOXVILLE, TN 37909
Dietitian, Registered
1450 DOWELL SPRINGS BLVD, SUITE 300
KNOXVILLE, TN 37909
Physician Assistant
1450 DOWELL SPRINGS BLVD, SUITE 300
KNOXVILLE, TN 37909
Nurse Practitioner
1450 DOWELL SPRINGS BLVD, SUITE 300
KNOXVILLE, TN 37909
Dietitian, Registered
1450 DOWELL SPRINGS BLVD, SUITE 300
KNOXVILLE, TN 37909
Nurse Practitioner
1450 DOWELL SPRINGS BLVD, SUITE 300
KNOXVILLE, TN 37909
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1450 DOWELL SPRINGS BLVD, SUITE 300
KNOXVILLE, TN 37909
Nurse Practitioner (Family)
1450 DOWELL SPRINGS BLVD
KNOXVILLE, TN 37909

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 Williams's NPI number?

The NPI number for John Williams is 1982605598. It was assigned to this individual provider in the NPPES registry on August 4, 2005.

Where is John Williams located?

John Williams practices at 1450 Dowell Springs Blvd Suite 300, Knoxville, TN 37909. The listed phone number is (865) 637-8812.

What is John Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is John Williams enrolled in Medicare?

Yes. John Williams is registered in the Medicare PECOS enrollment system.

What insurance does John Williams accept?

Health plans from BlueCross BlueShield of Tennessee list John Williams 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.

When was this NPI record last updated?

The NPPES record for John Williams was last updated on May 17, 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.