Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Johnny Lee Williams, M.D.

Addiction Medicine (Psychiatry & Neurology) Physician in Greenville, NC · enumerated 2006 · practices at Port Health Services.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1972697746

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Registry record

Entity type Individual (Type 1)

Name Dr. Johnny Lee Williams

Credential M.D.

Sex Male

Practice address Greenville, NC, 27834

Phone (252) 413-1637

Fax (252) 317-0316

Enumeration date Oct 3, 2006

Last updated in NPPES Dec 10, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License 20584 (NC) Primary

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 20584 (NC) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
34D0944653	Other	NC	CLIA
87700	Other	NC	BCBSNC
8987700	Medicaid	NC	-
0728888	Other	NC	UNITED HEALTHCARE
20584	Other	NC	MEDICAL LICENSE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Johnny Williams?

Johnny Williams is registered in NPPES with the primary taxonomy of Addiction Medicine (Psychiatry & Neurology) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Gary Leonhardt Addiction Medicine (Psychiatry & Neurology) Physician · Greenville, NC NPI 1538183942 Port Health Services Community/Behavioral Health Agency · Greenville, NC NPI 1932258795 Genena Buck Addiction (Substance Use Disorder) Registered Nurse · Greenville, NC NPI 1710766613

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-10.