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MR. JOHN W LACEY M.D.
NPI 1508964487
Internal Medicine in Knoxville, TN

Active since September 21, 2006PECOS Enrolled
1940 ALCOA HWY, E180, KNOXVILLE, TN 37920(865) 305-6810(865) 305-6803 Get Directions Write a Review

NPPES record last updated: August 3, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mr. John W Lacey M.d. NPPES

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

MR. JOHN W LACEY M.D. (NPI 1508964487) is an individual internal medicine provider in Knoxville, Tennessee, licensed in Tennessee (MD0000008513) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1508964487
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMR. JOHN W LACEYCredential: M.D.
Location Address1940 ALCOA HWY, E180Knoxville, TN 37920-2244
Mailing AddressPo Box 440248Nashville, TN 37244-0248 · (865) 670-6199 · Fax (865) 670-6198
Phone(865) 305-6810
Fax(865) 305-6803
Sole ProprietorNo
Enumeration DateSeptember 21, 2006
Last NPPES UpdateAugust 3, 2015
✔ NPI 1508964487 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TN · MD0000008513
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1940 ALCOA HWY, Knoxville, TN 37920
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Other Identifiers 3

Medicare UPINB59299
Medicare PIN103I113953TN
Medicaid3163298TN

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. John W Lacey M.d. 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.

Medicare Billing Reassignment

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

University Health System, Inc
Same address
Internal Medicine
1940 ALCOA HWY, STE E180
Knoxville, TN 37920
  • Reassigned Medicare billing, Tennessee enrollment
  • 832 clinicians in this Medicare group
NPI 1447589197 (865) 305-6810

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37920 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.

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.

MRS. PATRICIA M HUDDLESTON NP
Nurse Practitioner (Family)
1940 ALCOA HWY, STE 180
KNOXVILLE, TN 37920
Knox County (865) 305-6955
DR. MONA ANNE DASGUPTA DO
Student in an Organized Health Care Education/Training Program
1940 ALCOA HWY
KNOXVILLE, TN 37920
Knox County (865) 524-7471
KNOXVILLE OMNICARE PLLC
Family Medicine
1940 ALCOA HWY, E40
KNOXVILLE, TN 37920
Knox County (865) 588-1605
RAYMOND A DIETER III MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1940 ALCOA HWY, SUITE E310
KNOXVILLE, TN 37920
Knox County (865) 305-6955
ANNA H MOORE APRN, BC
Nurse Practitioner (Family)
1940 ALCOA HWY, SUITE E310
KNOXVILLE, TN 37920
Knox County (865) 544-2800
DR. MICHAEL MORGAN MCNALLY
Surgery (Vascular Surgery)
1940 ALCOA HWY, E120
KNOXVILLE, TN 37920
Knox County (865) 305-8040
UHS CARDIOLOGY GROUP, LLC
Internal Medicine (Cardiovascular Disease)
1940 ALCOA HWY, STE 310
KNOXVILLE, TN 37920
Knox County (865) 544-2800
MS. LISA A DUGGER NP
Nurse Practitioner (Family)
1940 ALCOA HWY, SUITE E-310
KNOXVILLE, TN 37920
Knox County (865) 544-2800

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 Lacey's NPI number?

The NPI number for John Lacey is 1508964487. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Where is John Lacey located?

John Lacey practices at 1940 Alcoa Hwy E180, Knoxville, TN 37920. The listed phone number is (865) 305-6810.

What is John Lacey's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Lacey enrolled in Medicare?

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

Which organization bills Medicare for John Lacey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Lacey reassigns Medicare benefits to University Health System, Inc (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 John Lacey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for John Lacey was last updated on August 3, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.