WILLIAM O. LACY MD – NPI #1558457796
Internal Medicine

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Health Care Provider Taxonomy Code for Internal Medicine

WILLIAM LACY is a physician located in LOUISVILLE, KY. NPPES has assigned the NPI number 1558457796 to WILLIAM LACY on October 05, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RS0012X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Sleep Medicine

The NPI profile was last updated on Nov 20, 2024. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for WILLIAM LACY below.

NPI Profile for
WILLIAM O. LACY

NPI Number
1558457796
Enumeration Date

(more than 19 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
WILLIAM O. LACY
Credentials
MD
Primary location
4606 GREENWOOD RD
LOUISVILLE, KY 40258
Phone: (502) 937-2209 Fax:
1 Other location(s):
4606 Greenwood Rd
Louisville, KY 40258-3726
Phone: (502) 937-2209
Fax: (502) 933-8714
Mailing address
PO BOX 776351
CHICAGO, IL 60677-6351
Phone: (502) 588-9490 Fax: (502) 272-5116
Sole Proprietor
No
Updated
Certification Date
Nov 20, 2024

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for WILLIAM LACY

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

DescriptionIssuerStateIdentifier
otherINDIANA MEDICAIDIN200003570
medicaidKY64287063
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RS0012X
- Internal Medicine / Sleep Medicine (Primary)		 KY 28706
207RP1001X
- Internal Medicine / Pulmonary Disease		 KY 28706
207R00000X
- Internal Medicine		 KY 28706

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Endpoint

Health Information Exchange (HEI)

HEI is the mobilization of health care information electronically across organizations within a region, community or hospital system. Endpoints provide a simple and secure way for participants to send authenticated, encrypted health information directly to known, trusted recipients over the internet such as primary care physicians, specialists, hospitals, labs, etc.

View All Endpoint(s)
Endpoint
[email protected]
Endpoint type
Direct Messaging Address
Endpoint Description
Content Type
Affiliation
N
Endpoint Location
4606 GREENWOOD RD,
LOUISVILLE, KY 77025-1669
Endpoint
https://epicsoap.nortonhealthcare.org/FHIRPRD/api/FHIR/DSTU2/
Endpoint type
FHIR URL
Endpoint Description
Content Type
Affiliation
N
Endpoint Location
4606 GREENWOOD RD,
LOUISVILLE, KY 77025-1669

Additional Information

Education
UNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE - Graduated 1986
Offers Telehealth Services
Yes - Telehealth services allows you to talk to your health care provider using audio/video communications, such as Zoom, without actually going in to the doctor's office
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
WILLIAM LACY is affiliated with the following medical group(s):
  • HOSPITAL
    • BAPTIST HEALTH HARDIN
      913 NORTH DIXIE AVENUE
      ELIZABETHTOWN, KY 42701
    • JEWISH HOSPITAL & ST MARY'S HEALTHCARE
      200 ABRAHAM FLEXNER WAY
      LOUISVILLE, KY 40202
    • NORTON HOSPITALS, INC
      200 EAST CHESTNUT STREET
      LOUISVILLE, KY 40202

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.