Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory Allen Waller, M.D.

Obstetrics & Gynecology Physician in Montgomery, AL · enumerated 2006 · practices at Ob-Gyn Associates of Montgomery, P.C..

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

National Provider Identifier

1023036217

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Allen Waller

Credential M.D.

Sex Male

Practice address 495 Taylor Rd, Montgomery, AL, 36117

Phone (334) 279-9333

Fax (334) 279-9381

Enumeration date Jul 17, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 15908 (AL) 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
7410287	Other	AL	UNITED HEALTH CARE

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

Is NPI 1023036217 active?

Yes, as of the latest NPPES snapshot, NPI 1023036217 is active (record last updated 2007-07-08).

How do I verify Gregory Waller's NPI record?

Cross-check NPI 1023036217 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.