Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John G Porter, M.D.

Q: What is the NPI number for John Porter?

The National Provider Identifier (NPI) for John Porter is 1114962156, a Type 1 (individual) record in the CMS NPPES registry.

Interventional Pain Medicine Physician in Marietta, GA · enumerated 2006.

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

National Provider Identifier

1114962156

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Registry record

Entity type Individual (Type 1)

Name John G Porter

Credential M.D.

Sex Male

Practice address 790 Church St Ne, Suite 550, Marietta, GA, 30060

Phone (770) 419-9902

Fax (770) 419-7457

Enumeration date Jun 16, 2006

Last updated in NPPES Jan 12, 2011

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 026620 (GA) Secondary

208VP0014X Interventional Pain Medicine Physician Allopathic & Osteopathic Physicians · License 026620 (GA) Primary

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
2147453	Other	GA	CIGNA
1710946322	Other	GA	GROUP NPI NUMBER

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for John Porter?

The National Provider Identifier (NPI) for John Porter is 1114962156, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Porter practice?

The practice location on file with NPPES is in Marietta, GA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-12.